Instrumentation Amplifiers

Instrumentation amplifiers are a type of precision gain block, a differential amplifier (a type of electronic amplifier that amplifies the voltage difference between two inputs but suppresses any voltage common to the two inputs). Instrumentation Amplifiers are also known as in-amps.

Common applications are:

• Test & Measurement Industrial Devices
• Data Acquisition Devices
• Medical Devices
• Any noisy environment where large common-mode signals are present

How do instrumentation amplifiers work?

An instrumentation amplifier measures small signals in a noisy environment. The noise generally is "common-mode noise" (the difference between the noise-free common mode voltage and the actual common mode voltage). An instrumentation amplifier uses its common-mode rejection to distinguish the noise from the signal of interest.

What are the instrumentation amplifiers used for?

Instrumentation amplifiers are needed in nearly every field of electronics, particularly in the test and measurement industry. They can be used as a voltage follower, selective inversion circuit, a current-to-voltage converter, active rectifier, integrator, a variety of filters, and a voltage comparator.

Unlike instrumentation amplifiers (In Amp), operational amplifiers (Op Amp) are high-gain voltage amplifying devices with a differential input.

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Description Price Power Supply Type Package Type Mounting Type Typical Single Supply Voltage Pin Count Typical Dual Supply Voltage Rail to Rail Maximum Input Offset Voltage Minimum Operating Temperature Maximum Operating Temperature Maximum Input Resistance Minimum CMRR Typical Gain Bandwidth Product Maximum Supply Current
RS Stock No. 106-6379
Mfr. Part No.AD595AQ
€16.541
Each (In a Tube of 25)
units
Dual, Single CDIP Through Hole 5 V 14 ±15V - - -55 °C +125 °C - - 15kHz -
RS Stock No. 301-779
Mfr. Part No.AD595AQ
€18.65
Each
units
Dual, Single CDIP Through Hole 5 V 14 ±15V No - -55 °C +125 °C - - 15kHz -
RS Stock No. 252-1593
Mfr. Part No.INA125PA
€5.68
Each
units
Dual, Single PDIP Through Hole 5 V 16 ±15V No 0.5mV -55 °C +125 °C 100GΩ 72dB - -
RS Stock No. 121-8507
Mfr. Part No.INA125PA
€5.023
Each (In a Tube of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 759-0099
Mfr. Part No.AD8495CRMZ
€9.12
Each
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Dual, Single MSOP Surface Mount 2.7 36 V 8 ±2.7 ±18V Rail to Rail Output - -40 °C +125 °C - - 25kHz 0.25 mA
RS Stock No. 121-6694
Mfr. Part No.AD8495ARMZ
€4.236
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 111-2200
Mfr. Part No.AD623ANZ
€4.222
Each (In a Tube of 50)
units
Dual, Single PDIP Through Hole 3 V, 5 V, 9 V 8 ±3 V, ±5 V Rail to Rail Output 0.2mV -40 °C +85 °C 2GΩ 70dB - -
RS Stock No. 545-5770
Mfr. Part No.LTK001CN8#PBF
€11.79
Each
units
- PDIP Through Hole - 8 - - - 0 °C +70 °C - - - -
RS Stock No. 153-3424
Mfr. Part No.LTK001CN8#PBF
€7.517
Each (In a Tube of 50)
units
- PDIP Through Hole - 8 - - - 0 °C +70 °C - - - -
RS Stock No. 806-7916
Mfr. Part No.AD8224ACPZ-WP
€9.25
Each
units
Dual, Single LFCSP Surface Mount 4.5 36 V 16 ±2.25 ±18V Rail to Rail Output 300µV -40 °C +85 °C 40kΩ 94dB 1.5MHz 900 μA
RS Stock No. 160-1728
Mfr. Part No.AD8224ACPZ-WP
€6.867
Each (In a Tray of 64)
units
Dual, Single LFCSP Surface Mount 4.5 36 V 16 ±2.25 ±18V Rail to Rail Output 300µV -40 °C +85 °C 40kΩ 94dB 1.5MHz 900 μA
RS Stock No. 759-0080
Mfr. Part No.AD8495ARMZ
€5.32
Each
units
Dual, Single MSOP Surface Mount 2.7 36 V 8 ±2.7 ±18V Rail to Rail Output - -40 °C +125 °C 60kΩ - 25kHz 0.25 mA
RS Stock No. 523-8575
Mfr. Part No.AD623ANZ
€5.32
Each
units
Dual, Single PDIP Through Hole 3 V, 5 V, 9 V 8 ±3 V, ±5 V Rail to Rail Output 0.2mV -40 °C +85 °C 2GΩ 70dB - -
RS Stock No. 912-7113
Mfr. Part No.AD620BNZ
€12.246
Each (In a Tube of 50)
units
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 50µV -40 °C +85 °C 10GΩ 80dB 120kHz -
RS Stock No. 660-5226
Mfr. Part No.INA122P
€6.49
Each
units
Dual, Single PDIP Through Hole 5 V 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V Rail to Rail Output 0.25mV -40 °C +85 °C 10GΩ 83dB - 0.085 mA
RS Stock No. 923-3530
Mfr. Part No.INA122P
€5.928
Each (In a Tube of 50)
units
Dual, Single PDIP Through Hole 5 V 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V Rail to Rail Output 0.25mV -40 °C +85 °C 10GΩ 83dB - 0.085 mA
RS Stock No. 412-327
Mfr. Part No.AD620BNZ
€14.91
Each
units
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 50µV -40 °C +85 °C 10GΩ 80dB 120kHz -
RS Stock No. 158-0332
Mfr. Part No.LT1789IS8-1#PBF
€5.116
Each (In a Tube of 100)
units
Single SOIC Surface Mount 3 V, 5 V 8 - Rail to Rail Output 100µV -40 °C +85 °C 1.6GΩ 79dB 60kHz 95 μA
RS Stock No. 884-6769
Mfr. Part No.LT1789IS8-1#PBF
€7.93
Each
units
Single SOIC Surface Mount 3 V, 5 V 8 - Rail to Rail Output 100µV -40 °C +85 °C 1.6GΩ 79dB 60kHz 95 μA
RS Stock No. 660-5285
Mfr. Part No.INA131BP
€12.79
Each
units
Dual, Single PDIP Through Hole 12 V, 15 V, 18 V, 24 V, 28 V, 5 V, 9 V 8 ±15V No 0.05mV -40 °C +85 °C 10GΩ 110dB - 3 mA
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Description:
The Instrumentation Amplifier ICs amplify the difference between two input signal voltages, while rejecting any signals that are common to both inputs The DC precision and gain accuracy is maintained within a noisy environment, and also where large common-mode signals ...
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The Instrumentation Amplifier ICs amplify the difference between ...
Description:
The Instrumentation Amplifier ICs amplify the difference between two input signal voltages, while rejecting any signals that are common to both inputs The DC precision and gain accuracy is maintained within a noisy environment, and also where large common-mode signals ...