Parameter Interpretation and selection of common op ops, Parameters

Parameter Interpretation and selection of common op ops, Parameters

There are many parameters for Integrated Op-ops. The main parameters are DC and AC indicators, and all chips have limit parameters. This article takes NE5532 as an example to briefly explain each indicator. The following content is not only captured from the NE5532 Data Manual, but also from the network.

Limit Parameter

It is mainly used to determine the design of the power supply for the op amp (the number of V voltage and the maximum current cannot exceed). The limit parameters of NE5532 are as follows:

DC indicator

The main DC indicators of the Operational Amplifier include input offset voltage and input offset voltage temperature drift (for short, input offset voltage temperature drift) input offset current, input offset current, and input offset current temperature drift (input offset current temperature drift for short) differential Mode open-loop DC voltage gain, common mode rejection ratio, power supply voltage rejection ratio, output peak-peak voltage, maximum common mode input voltage, and maximum differential mode input voltage. NE5532 DC indicators are as follows:

• Input offset voltage Vos:

  The input offset voltage is defined as the compensation voltage added between the two inputs when the output voltage of the integrated op-amp is zero. The input offset voltage actually reflects the circuit symmetry inside the Op Amplifier. The better the symmetry, the smaller the input offset voltage. Input offset voltage is a very important indicator of an operational amplifier, especially when a precision operational amplifier is used for DC amplification. The input offset voltage has a certain relationship with the manufacturing process. The input offset voltage of the bipolar process (Standard silicon process) is between ± 1 ~ 10mV; the input voltage is larger when the FET is used. For precision op amps, the input offset voltage is generally below 1mV. The smaller the input offset voltage, the smaller the intermediate zero point offset during DC amplification, the easier it is to handle. Therefore, the precision op amp is an extremely important indicator.

• Temperature Drift of input offset voltage (input offset voltage temperature drift for short) △vos/△t:

  The temperature drift of input offset voltage is defined as the ratio of input offset voltage variation to temperature variation within a given temperature range. This parameter is actually a supplement to the input offset voltage to facilitate the calculation of the drift of the amplification circuit due to temperature changes within a given working range. Generally, the input offset voltage of an operational amplifier is shifted to ± 10 ~ Between 20 V/℃, the input offset voltage of the precision Op Amplifier is less than or equal to 1 μV/℃.

• Input offset current Ios:

  The input offset current is defined as the average value of the offset current at the two input ends when the output DC voltage of the op amp is zero. The input bias current has a great impact on the places where the input impedance is required, such as high-impedance signal amplification and integral circuit. The input offset current has a certain relationship with the manufacturing process. The input offset current of the bipolar process (Standard silicon process) is ± 10nA ~ Between 1 μA, the input bias current is generally lower than 1nA when the FET is used as the input level.

• Temperature Drift of input offset current (input offset current temperature drift for short) △ios/△t:

• Maximum common mode input voltage Vcm:

  The maximum common-mode input voltage is defined as the common-mode input voltage when the op-amp operates in a linear zone and when the common-mode suppression bit of the op-amp significantly degrades. Generally, when the common-mode rejection ratio drops by 6 dB, the corresponding common-mode input voltage is used as the maximum common-mode input voltage. The maximum common mode input voltage limits the maximum common mode input voltage range in the input signal. In case of interference, you need to pay attention to this problem in circuit design.

• Common Mode Rejection Ratio CMRR:

  The common-mode rejection ratio is defined as the ratio of the difference-mode gain to the common-mode gain of the op-ops when the op-ops work in a linear zone. Common Mode Rejection Ratio is an extremely important indicator, which can suppress Common Mode Interference Signals in differential mode input. Because the common-mode rejection ratio is very large, most Op Amps usually have a common-mode rejection ratio of tens of thousands of times or more, which is not convenient to compare directly with a number. Therefore, we generally use the DB method to record and compare. The common-mode suppression ratio of a general op amp is 80 ~ Between 120dB.

• Power supply voltage rejection ratio PSRR:

  The power supply voltage rejection ratio is defined as the ratio of the input offset voltage of the Op Amplifier to the variation of the power supply voltage when the Op Amplifier is working in a linear zone. The power supply voltage suppression ratio reflects the impact of power supply changes on the output of the op-amp. For op-ops with low power supply voltage rejection ratio, the power supply of the op-amp must be carefully processed; otherwise, the ripple of the power supply will be introduced to the output end. Of course, high common-mode suppression op-ops can compensate some of the power supply voltage Suppression Ratio. In addition, when using dual power supply, the power supply voltage Suppression Ratio of positive and negative power supply may be different.

• Output peak-peak voltage Vout:

  The output peak-peak voltage is defined as the maximum voltage range that can be output by the op-amplifier under a specified load when the op-amplifier operates in a linear zone. In addition to low-voltage op amps, the output peak-peak voltage of a general Op Amplifier is greater than ± 10 V. The output peak-peak voltage of a general op amp cannot reach the power supply voltage. This is caused by the output level design. Some of the modern low-voltage op amp's output levels have been specially processed, making the output level at 10 k? During load, the output peak-peak voltage is close to less than 50mV of the power supply voltage, so it is called a full output op amp, also known as a Rail-to-rail (raid-to-raid) op amp. Note that the output peak-peak voltage of the op amp is related to the load. The output peak-peak voltage varies depending on the load. The positive and negative output voltage swing of the op amp is not necessarily the same. For practical applications, the closer the output peak voltage is to the power supply voltage, the better, which simplifies the power supply design. However, the current full output op amp can only work at low voltage, and the cost is high.

• Input Impedance Rin:

  The input impedance reflects the impact of the input on the performance of the op amp. The larger the input impedance, the better.

Exchange metrics

The main AC indicators of the op-amp include open-loop bandwidth, unit gain bandwidth, conversion rate SR, full power bandwidth, creation time, equivalent input noise voltage, differential mode input impedance, common mode input impedance, and output impedance.

There are many important parameters in the AC indicators, especially the unit gain bandwidth and Pressure Swing rate, which are particularly useful in the selection of small signals and large-signal op-ops.

• Output impedance Rout:

  The input impedance reflects the load capacity at the output end of the op amp.

• Open Loop Gain Av:

  Maximum gain achieved by the op amp under open-loop Conditions

• Open-loop bandwidth:

  The open-loop bandwidth is defined to input a constant sine signal to the input end of the Op Amplifier, from the output end of the op amp, the signal frequency of the open-loop voltage gain is measured from the DC gain of the op amp, which drops by 0.707 (or equivalent to of the DC gain of the op amp. This is used for processing small signals. This parameter does not appear in the NE5532 Data Manual.

• Unit gain bandwidth GB (measured by gain bandwidth product GBW in NE5532)

  The unit gain bandwidth is defined as that, when the closed loop gain of the op amp is doubled, a constant sine signal is input to the input of the op amp, measured from the output end of the op amp, the closed-loop voltage gain drops by 0.707 (or equivalent to of the input signal of the op amp.

  The unit gain bandwidth is an important indicator. When a small sine signal is amplified, the unit gain bandwidth is equal to the product of the input signal frequency and the maximum gain at this frequency. In other words, that is, when the signal frequency to be processed and the signal needs to be increased, the unit gain bandwidth can be calculated to select an appropriate op amp. This parameter is used for selection of small signal processing operations.

• Pendulum rate (Conversion Rate) SR:

  When the op amp is connected to a closed loop, a large signal (including a step signal) is input to the input end of the op amp, and the output speed of the op amp is increased from the output end of the op amp. During the conversion, the input level of the op amp is in the switch state, so the feedback loop of the op amp does not work, that is, the conversion rate is irrelevant to the closed loop gain.

  The conversion rate is a very important indicator for Large Signal Processing. For general op-erases, the conversion rate SR is <= 10 V/μs, and the conversion rate SR of High-Speed op-ops is> 10 V/μs. Currently, the highest conversion rate of high-speed op-ops reaches 6000 V/μs. This is used for selection of big signal processing operations.

• Full bandwidth:

  At rated load, the closed loop gain of the op amp is doubled, and a constant sine signal is input to the input end of the op amp to maximize the output range of the op amp (distortion allowed) signal frequency. This frequency is limited by the conversion rate of the op amp. Similarly, full-power bandwidth = Conversion Rate/2 π Vop (Vop is the peak output range of the op amp ). Full-power bandwidth is an important indicator for selection of big signal processing operations.

Selection table of commonly used op amps

The following table lists the types of commonly used op-ops Reprinted from other places:

Device Name manufacturer profile μa741 TI Single-circuit universal op-amp; #45 TI dual-circuit universal op-amp; AD515A ADI Low Power FET input op amp; AD605 ADI low noise, single power supply, variable gain dual-op amp; AD644 ADI High Speed, injection of BiFET dual op amp AD648 ADI precision, low-Power BiFET dual-Op Amplifier AD704 ADI input micro-ampere current bipolar four-run release AD705 ADI input micro-ampere current bipolar Op Amps AD706 ADI input micro-ampere current bipolar Op Amps AD707 ADI ultra-low drift Op Amps AD708 ADI ultra-low offset voltage dual-Op Amplifier AD711 ADI precision, low-cost, high-speed BiFET op amp AD712 ADI precision, low-cost, high-speed BiFET dual-op amp AD713 ADI precision, low-cost, high-speed BiFET 4-run put AD741 ADI low-cost, high-Precision IC op amp; AD743 ADI ultra-low-noise BiFET op amp; AD744 ADI high-precision, high-speed BiFET op amp; AD745 ADI ultra-low Noise, high-speed BiFET op amp AD746 ADI ultra low noise, high-speed BiFET dual op amp AD795 ADI low power consumption, low noise, precision FET op amp AD797 ADI ultra low distortion, Ultra Low Noise op amp AD8022 ADI high speed low noise, voltage Feedback dual op amp AD8047 ADI General voltage feedback op amp AD8048 ADI General voltage feedback op amp AD810 ADI Low Power video op amp AD811 ADI high performance video op amp AD812 ADI low power current feedback dual op amp AD813 ADI single power supply, low-Power video three-way AD818 ADI low-cost, low-power video op amp AD820 ADI single power supply, FET input, full-range low-power amplifier AD822 ADI single power supply, FET input, full-range low-power op amp AD823 ADI 16 MHz, full range, FET input dual op amp AD824 ADI single power supply, full range low power consumption, FET input op amp AD826 ADI high speed, low power dual op amp AD827 ADI high speed, low power dual op amp D828 ADI low power consumption, video dual op amp AD829 ADI high speed, low noise video op amp AD830 ADI high speed, video differential op amp AD840 ADI broadband fast op amp AD841 ADI broadband, fixed unit gain, fast op amp AD842 ADI broadband, high Output Current, fast op amp AD843 ADI 34 MHz, CBFET fast op amp AD844 ADI 60 MHz, 2000 V/μs Single-Chip op amp AD845 ADI precise 16MHzCBFET op amp AD846 ADI precise 450 V/μs current feedback op amp AD847 ADI high speed, low power single-chip op amp AD848 ADI high speed, low Power Single-Chip op amp AD849 ADI high speed, low power single-chip op amp AD8519 ADI Full amplitude op amp AD8529 ADI Full amplitude op amp AD8551 ADI low drift, single power supply, Full amplitude Input and Output op amp AD8552 ADI low drift, single power supply, full-range Input and Output dual-Op Amplifier AD8554 ADI low drift, single power supply, full-range Transmission AD8571 ADI zero drift, single power supply, full range input/output single op amp AD8572 ADI zero drift, single power supply, Full Range Input/Output dual Op Amplifier AD8574 ADI zero drift, single power supply, full amplitude input/output 4-run AD8591 ADI with off-power single-source Full amplitude input/output op-amp; AD8592 ADI with off-power single-source Full amplitude input/output op-amp; AD8594 ADI with off-power single-source Full amplitude input/output op-amp AD8601 ADI low offset, single power supply, Full amplitude input/output single op amp AD8602 ADI low offset, single power supply, Full amplitude input/output dual op amp AD8604 ADI low offset, single power supply, full Range Input/output 4-run AD9610 ADI broadband op amp AD9617 ADI low distortion, precision broadband op amp AD9618 ADI low distortion, precision broadband op amp AD9631 ADI ultra low distortion, broadband voltage feedback op amp AD9632 ADI ultra-low distortion, broadband voltage feedback op amp C54DSKplus TI Low-noise high-speed compensated dual-circuit op amp; L165 ST 3A power op amp; L272 ST dual-channel power op amp; L2720 ST low-voltage differential dual-channel power op amp; L2722 ST differential dual-channel power op amp; L2750 ST low-voltage differential dual-channel power op amp; LF147 ST broadband four J-FET op amp; LF151 ST broadband single J-FET op amp; LF155 ST broadband J-FET single op amp; LF156 ST broadband J-FET single op amp LF247 ST broadband four J-FET op amp; lf1200st broadband single J-FET op amp; LF253 ST broadband dual J-FET op amp; LF255 ST broadband J-FET single op amp; LF256 ST broadband J-FET single op amp; LF355 ST broadband j-FET single op amp LF356 ST broadband J-FET Single op amp LF357 ST broadband J-FET single op amp LM101A TI High Performance op amp LM124A (ST) ST low power four-run release LM146 ST programmable four-pole op amp LM158/a st low power double op amp LM224A (st) ST low-power four-operation release LM246 ST programmable four-double-pole Op Amps LM258/a st Low-Power Dual-Op Amps LM324A ST low-power four-operation release LM346 ST programmable four-double-pole Op Amps LM358/a st Low-Power Dual-four-run LMV358 TI low-voltage dual-Op Amplifier LS204 ST high-performance dual-Op Amplifier LS404 ST high-performance quad-run release LT1013 TI dual-channel precision Op Amplifier LT1014 TI four-channel precision Op Amplifier MC1558 TI dual-purpose Op Amplifier JFET op amp; MC33004 ST universal four JFET op amp; MC3 303 TI quad low-power op amp; MC33078 ST low-noise dual-op amp; MC33079 ST low-noise quad-op amp; MC33171 ST Low-Power Dual-op amp; peak ST Low-Power Dual-op amp; MC33174 ST low-power du double JFET op amp; MC34004 ST universal four JFET op amp; MC3403 TI quad Low Power universal op amp; MC35001 ST universal single JFET op amp; MC35002 ST universal dual JFET op amp; MC35004 ST universal four JFET op amp; MC3503 MC35171 ST Low-Power Dual-Pole Single op amp MC35172 ST Low-Power Dual-pole type dual-op amp MC35174 ST Low-Power Dual-pole type quad-port MC4558 ST broadband dual-op amp MCP601 Microchip 2.7V ~ 5.5V single power supply single op amp MCP602 Microchip 2.7V ~ 5.5V single-Power Dual-Op Amplifier MCP603 Microchip 2.7V ~ 5.5V single power supply single op amp MCP604 Microchip 2.7V ~ 5.5 V single power supply four operating Release NE5532 TI dual Low Noise High Speed audio op amp; NE5534 TI Low Noise High Speed audio op amp; OP-04 ADI High Performance dual op amp; OP-08 ADI low input current op amp; OP-09 precision low input current op amp OP-14 ADI High Performance dual op amp OP-15 ADI precision JFET op amp OP-16 ADI precision JFET op amp OP-17 ADI precision JFET op amp OP-207 ADI ultra low Vos dual op amp OP-215 ADI High Precision dual op amp OP-22 ADI programmable low power op amp OP-220 ADI Low Power Dual op amp OP-221 ADI Low Power Dual op amp OP-227 ADI Low Noise low offset dual measurement op amp OP-260 ADI high speed, current feedback double op amp OP-27 ADI Low Noise precision op amp OP-270 ADI Low Noise precision double op amp OP-271 ADI high speed double op amp op-32 ADI high speed programmable micro power op amp op-37 ADI low noise, Precision High Speed op amp op-400 ADI low offset, low Power Four operation release op-42 ADI high speed, precision op amp op-420 ADI Micro Power Consumption four operation release op-421 ADI low power four operation release op-471 ADI low noise, High Speed four operation put OP07 ADI ultra low offset voltage op amp OP07C TI high precision, low offset, voltage op amp OP07D TI high precision, low offset, voltage op amp OP07Y TI high precision, low offset, voltage op amp OP113 ADI low noise, low drift, single power op amp OP162 ADI 15 MHz full op amp OP176 ADI audio op amp OP177 ADI Ultra High Precision op amp OP181 ADI ultra low power, full amplitude output op amp OP183 ADI 5MHz single power op amp OP184 ADI precision Full amplitude input output op amp OP186 ADI Full amplitude op amp op191 ADI Micro Power Consumption single power source Full amplitude op amp OP193 ADI precision micro power op amp OP196 ADI micro Power Consumption, full-Range Input and Output op amp OP200 ADI ultra-low offset, low-power op amp OP213 ADI low noise, low drift, single power op amp; OP249 ADI High-Speed Dual-op amp; OP250 ADI single power source Full amplitude input/output dual op amp; OP262 ADI 15 MHz Full amplitude op amp; OP27 TI Low Noise High-Speed op amp; op275 ADI audio dual op amp; ADI ultra-low power consumption, full Range Output op amp op282 ADI low power, high-Speed Dual-op ops OP283 ADI 5MHz single-power op amp OP284 ADI precision full-range input/output op amp op285 ADI 9MHz precision dual-op amp op290 ADI precision micro-power dual-op amp op291 ADI micro-power single-Power Amplifier full range ADI precision micro-power dual-op ops op295 ADI full range dual-op ops OP296 ADI micro power consumption, full-Range Input and Output dual-op ops op297 ADI low offset current precision dual-op ops OP37 TI Low Noise Precision High-Speed op ops OP413 ADI low noise, low drift, single power op amp OP450 ADI single power supply Full Range Input and Output four operation put OP462 ADI 15 MHz full range op amp op467 ADI High Speed four operation put op470 ADI Low Noise four operation put OP481 ADI ultra low power, full Range Output op amp op482 ADI low power consumption, high-speed four-run put OP484 ADI precision Full Range Input and Output op ops op490 ADI Low Voltage Micro Power Four run put op491 ADI micro power single power source full range op ops op492 ADI four run put OP493 ADI precision micro power four run put op495 ADI full-scale four-core OP496 ADI micro-power consumption, full Range Input and Output four operation put op497 ADI micro ampere input current four operation put op77 ADI ultra low offset voltage op amp op80 ADI ultra low offset current op amp OP90 ADI precision micro power op amp op97 ADI low power, high Precision op amp; PM1012 ADI Low Power precision op amp; PM155A ADI Single-Chip JFET input op amp; PM157A ADI Single-Chip JFET input op amp; RC4136 TI four-channel general op amp; RC4558 TI dual high RM4136 TI General four-purpose four-run RV4136 TI General four-purpose four-run SE5534 TI Low Noise op amp; SSM2135 ADI single power video dual op amp; SSM2164 ADI low cost, voltage Control, four operational release, TDA9203A st iic bus control, RGB front op amp; TDA9206 st iic bus control, broadband audio front op amp; TEB1033 ST precision dual op amp; TEC1033 ST precision dual op amp; THS4001 TI ultra high two-group Low-Power General op ops TL031 TI reinforced JFET low-power precision op ops TL032 TI dual-group reinforced JFET input, low power consumption, high precision op amp TL034 TI four-group reinforced JFET input, low power consumption, high precision op amp TL051 TI reinforced JFET input, high precision op amp TL052 TI dual-group reinforced JFET input, high Precision op amp TL054 TI four-group reinforced JFET input, high Precision op amp; TL061 TI Low Power JFET input op amp; TL061A ST Low Power JFET single op amp; TL062 TI dual low power JFET input op amp; TL062A/B ST Low Power JFET dual op amp; TL064 TI four low power JFET Input /B st low-power JFET quad-port TL070 TI low-noise JFET input op amp TL071 TI Low Noise JFET input op amp TL071A/B ST Low Noise JFET single op amp TL072 ST Low Noise JFET dual op amp TL072A TI dual low noise JFET Input /B st Low Noise JFET dual op amp TL074 TI four sets of Low Noise JFET input op amp TL074A/B st Low Noise JFET four operating put TL081 ti jfet input op amp TL081A/B ST General JFET single op amp TL082 TI dual set JFET Input op amp TL082A/B st General Purpose JFET dual op amp TL084 TI four sets of JFET input op amp TL084A/B ST General Purpose JFET four run release TL087 TI JFET input single op amp TL088 TI JFET input single op amp TL287 TI JFET input dual-Op Amplifier TL322 TI dual-group Low-Power Op Amplifier TL33071 TI Single Channel, high conversion rate, single power amplifier TL33072 TI dual channel, high conversion rate, single power amplifier TL33074 TI four channel, high conversion rate, single power amplifier TL34071 TI Single Channel, high conversion rate, single power amplifier TL34072 TI dual channel, high conversion rate, single power amplifier TL34074 TI four channel, high conversion rate, single power amplifier TL343 TI low power single Op Amplifier TL3472 TI high conversion rate, single-Power Dual-Op Amplifier TL35071 TI Single-circuit, high conversion rate, single-power op amp; TL35072 TI dual, high conversion rate, single-power op amp; TL35074 TI four-channel, high conversion rate, single power op amp; TLC070 TI broadband, high Output drive capability, single power supply single op-amp TLC071 TI broadband, high output drive capability, single power supply single op-amp TLC072 TI broadband, high output drive capability, single power supply double op-amp TLC073 TI broadband, high Output drive capability, single power supply, dual op-amp; TLC074 TI broadband, high output drive capability, single power supply, four-core release TLC075 TI broadband, high output drive capability, single power supply, four-core release TLC080 TI broadband, high Output drive capability, single power supply single op-amp TLC081 TI broadband, high output drive capability, single power supply single op-amp TLC082 TI broadband, high output drive capability, single power supply double op-amp TLC083 TI broadband, high Output drive capability, single-Power Dual-Op Amplifier TLC084 TI broadband, high output drive capability, single power supply four-way release TLC085 TI broadband, high output drive capability, single power supply four operation and release TLC1078 TI dual-group micro-power high precision low-voltage op amp; TLC1079 TI four groups micro-power high precision low-voltage op amp; tlc2201 TI low noise, full power supply range, precision op amp; TLC2202, high-Precision full-range op amp; TLC2252 TI dual-channel, full power range, micro-power op amp; TLC2254 TI four-channel, full power range, micro-power op amp; TLC2262 TI dual-channel advanced CMOS, full power amplifier TLC2264 TI four advanced CMOS, full power amplifier TLC2272 TI dual, low noise, full power amplifier TLC2274 TI four, low noise, full-Power Amplifier TLC2322 TI Low-Voltage Low-Power Amplifier TLC2324 TI Low-Voltage Low-Power Amplifier tlc23ti programmable low-power amplifier TLC252 TI dual-group, low-voltage Op Amplifier TLC254 TI four groups, low-voltage Op Amplifier TLC25L2 TI, TLC25L4 TI, TLC25M2, and TLC25M4 TI, low-power low-voltage op amp; TLC2652 TI advanced LINCMOS precision chopper stable op amp; TLC2654 TI advanced LINCMOS low-noise chopper stable op amp; TLC271 TI low-noise op amp; TLC272 TI dual-Circuit Single-power op amp; TLC dual-group precision Single-Power Amplifier TLC279 TI dual-group precision Single-Power Amplifier TLC27L2 TI dual-group, four sets of Single-power micro-power precision op-ops TLC27L4 TI, single-power micro-power precision op-ops TLC27L7 TI dual-group, single-power micro-power op-ops tlc27d9ti four groups, single power supply micro-power precision op amp; TLC27M2 TI dual group, single Power Supply Low Power precision op amp; TLC27M4 TI four groups, single Power Supply Low Power precision op amp; TLC27M7 TI dual group, single power low-power precision op amp TLC27M9 TI four groups, single power low-power precision op amp TLC2801 TI advanced LinCMOS low-noise precision op amp TLC2810Z TI dual-channel low-noise, single power op amp TLC2872 TI dual group, low noise, high temperature op amp; TLC4501 TI advanced LINEPIC, self-calibrated precision op amp; TLC4502 TI advanced LINEPIC, dual-group self-calibrated precision op amp; TLE2021 TI single-channel, high-speed, precision, low power, single, low Power Consumption, single power op amp TLE2024 TI four-way precision type, low power consumption, single power op amp TLE2027 TI enhanced low-noise high-speed precision op amp TLE2037 TI enhanced low-noise high-speed precision de-compensated op amp TLE2061 ti jfet input, high output drive, micro-Power Amplifier TLE2062 TI dual JFET input, high output drive, micro-power amplifier TLE2064 ti jfet input, high output drive, micro-power amplifier TLE2071 TI low noise, high speed, JFET input op amp TLE2072 TI dual low noise, high speed, JFET input op amp TLE2074 TI four low noise, high speed, JFET input op amp TLE2081 TI single-channel high speed, JFET input op amp TLE2082 TI dual-channel high speed, JFET input op amp TLE2084 TI four-way high-speed, JFET input op amp TLE2141 TI enhanced low-noise high-speed precision op amp TLE2142 TI dual low noise, high speed, precision type, single power op amp TLE2144 TI four-way low noise, high speed, single power op amp TLE2161 ti jfet input, high output drive, low power to compensate op amp TLE2227 TI dual low noise, high speed, precision op amp TLE2237 TI dual low noise, high speed, precision type to compensate op amp TLE2301 TI three-state output, Broadband Power Output op amp TLS21H62-3PW TI 5 V, 2-channel low noise read/write front op amp TLV2221 TI single-channel full power supply range, 5 foot package, micro-Power Amplifier TLV2231 TI Single full power supply range, micro-power amplifier TLV2252 TI dual full power supply range, low-voltage micro-power amplifier TLV2254 TI four full power supply range, low-Voltage Micro-Power Amplifier TLV2262 TI dual full power supply range, low voltage, low-power Op Amplifier TLV2264 TI four full power supply range, low voltage, low-power op amp; TLV2322 TI dual low-voltage micro-power op amp; TLV2324 TI four low-voltage micro-power op amp; TLV2332 TI dual low-voltage low-power op amp; TLV2341 TI power supply current programmable, low-voltage op amp; TLV2342 TI dual LICMOS, low-voltage, high-speed op amp; TLV2344 TI quad-channel LICMOS, low-voltage, high-speed op amp; TLV2361 TI single-channel high-performance, programmable low-voltage op amp, programmable low voltage op amp TLV2422 TI advanced LINCMOS full-range output, micro-power dual-circuit op amp TLV2432 TI dual-circuit wide input voltage, low power consumption, medium speed, high output drive op amp TLV2442 TI dual-circuit wide input voltage, high speed, TLV2450 TI Full amplitude input/output TLV2451 TI Full amplitude input/output TLV2452 TI Full amplitude input/output TLV2453 TI Full amplitude input/output TLV2454 TI Full amplitude input/output TLV2454 TI Full amplitude input/output 4-run TLV2455 TI full range input/output 4-run TLV2460 TI low power consumption, full amplitude input/output single op amp TLV2461 TI low power consumption, Full amplitude input/output single op amp TLV2462 TI low power consumption, Full amplitude input/output dual op amp TLV2463 TI low power consumption, Full amplitude input/output dual op amp TLV2464 TI Low Power Consumption, full Range Input/output 4-run TLV2465 TI low power consumption, full range input/output 4-run TLV2470 TI high output drive capability, full range input/output single op-amp TLV2471 TI high output drive capability, full-Range Input/output single-Op Amplifier TLV2472 TI high-output drive capability, full-range input/output dual-Op Amplifier TLV2473 TI high-output drive capability, full-range input/output dual-Op Amplifier TLV2474 TI high-output drive capability, full Range Input/output 4-run TLV2475 TI high output drive capability, full range input/output 4-run TLV2711 TI advanced LINCMOS full range output, low-Power Single-circuit op ops TLV2721 TI advanced LINCMOS full-range output, extremely low-power single-circuit op ops TLV2731 TI advanced LINCMOS full-range output, low-power single-circuit op ops TLV2770 TI 2.7V high conversion rate, full output with high conversion rate of off-peak single operational amplifier TLV2771 TI 2.7V, full output with off-peak single operational amplifier TLV2772 TI 2.7V high conversion rate, full output with off-peak double Operational Amplifier TLV2773 TI 2.7V high conversion rate, full-range output with dual-Op Amplifier TLV2774 TI 2.7V high conversion rate, full-range output with off four-run TLV2775 TI 2.7V high conversion rate, full-range output with off-four-operation TS271 ST programmable CMOS Single op amp TS272 ST high speed CMOS dual op amp TS274 ST high speed CMOS four-operation TS27L2 ST Low Power CMOS dual op amp TS27L4 ST Low Power CMOS four-operation TS27M2 ST Low Power CMOS Duop ST Low Power CMOS four-port TS321 ST low power single op amp TS3V902 ST 3V full range CMOS dual op amp TS3V904 ST full range four-port TS3V912 ST 3V full range CMOS dual op amp ready ST full range four-port TS461 ST single op ST double op amp; TS512 ST high-speed precision dual-op amp; TS514 ST high-speed precision four-yun release TS522 ST precision and low-noise dual op amp; TS524 ST precision and low-noise four-yun release TS902 ST full-range CMOS double op amp TS CMOS dual-Op Amplifier TS914 ST full range four operation TS921 ST full range high output current single op amp TS922 ST full range high output current dual op amp TS924 ST full range high output current four operation TS925 ST full range high output current four operational TS942 ST full output dual op amp TS951 ST Low Power Full amplitude single op amp TS971 ST full Amplitude Low Noise Single op amp TSH10 ST 140MHz broadband Low Noise Single op amp TSH11 ST 120MHz broadband MOS input single op amp TSH150 ST broadband bipolar input single op amp ST broadband and MOS input single op amp TSH22 ST High Performance bipolar dual op amp TSH24 ST High Performance bipolar four-Transport release TSH31 ST 280MHz broadband MOS input single op amp TSH321 ST broadband and MOS input single op amp TSH93 ST High Speed Low Power Three transport release TSH94 ST high four-operation release TSH95 ST high-speed low-power four-operation release TSM102 ST dual-Op Amplifier-dual comparator and Adjustable Voltage Reference TSM221 ST full range dual Op Amplifier and dual comparator UA748 ST precision Single op amp UA776 ST programmable low-power single op amp

What are the important parameter indicators of an operational amplifier? Which parameters are required when selecting an operational amplifier?

The integrated op amp has many parameters, including the DC and AC parameters.
The main DC indicators include input offset voltage and input offset voltage temperature drift.
Input offset current, input offset current, input offset current temperature drift (input offset current for short)
Temperature drift), differential mode open-loop DC voltage gain, common mode rejection ratio, power supply voltage rejection ratio, output peak-peak voltage,
Maximum common mode input voltage and maximum differential mode input voltage.
Main AC indicators include open-loop bandwidth, unit gain bandwidth, conversion rate SR, full-power bandwidth, creation time, etc.
Valid input noise voltage, differential mode input impedance, common mode input impedance, and output impedance.
The specific choice depends on your application.

Op amp Selection

1. Select the power supply voltage and mode of the op amp;
2. Package selection of Operational Amplifier;
3. Op-amplifier feedback mode, namely, VFA (Voltage Feedback op-amp) or CFA (current feedback op-amp );
4. op amp bandwidth;
5. The Pressure Pendulum rate, which determines the bandwidth of the full power signal;
6. Select the Offset voltage and Offset current;
7. The Offset Voltage drift with the temperature, that is, the size of △voffset/△t;
8. Select the input impedance of the op amp;
9. Selection of the output drive capacity of the Operational Amplifier;
10. Static power consumption of the op amp, that is, the selection of ICC current;
11. op amp noise selection;
12. Operational Amplifier drive load stability time.

Operational Amplifier selection table
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