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. 111-2200
Mfr. Part No.AD623ANZ
£3.64
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. 523-8575
Mfr. Part No.AD623ANZ
£4.84
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. 111-1132
Mfr. Part No.AD620ANZ
£7.32
Each (In a Tube of 50)
Units
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V - 0.125mV -40 °C +85 °C 10GΩ 73dB 1MHz -
RS Stock No. 522-9717
Mfr. Part No.AD620ANZ
£9.04
Each
Units
Dual PDIP Through Hole - 8 ±12 V, ±15 V, ±3 V, ±5 V, ±9 V No 0.125mV -40 °C +85 °C 10GΩ 73dB 1MHz -
RS Stock No. 106-6379
Mfr. Part No.AD595AQ
£14.964
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
£16.99
Each
Units
Dual, Single CDIP Through Hole 5 V 14 ±15V No - -55 °C +125 °C - - 15kHz -
RS Stock No. 913-0009
Mfr. Part No.AD8421BRZ
£6.638
Each (In a Tube of 98)
Units
Dual, Single SOIC Surface Mount 5 36 V 8 ±2.5 ±18V Rail to Rail Input 25µV -40 °C +125 °C 4kΩ 100dB 10MHz 2.6 mA
RS Stock No. 796-8877
Mfr. Part No.AD8421BRZ
£8.34
Each
Units
Dual, Single SOIC Surface Mount 5 36 V 8 ±2.5 ±18V No 25µV -40 °C +125 °C 4kΩ 100dB 10MHz 2.6 mA
RS Stock No. 369-6705
Mfr. Part No.INA126PA
£1.954
Each (In a Tube of 50)
Units
Dual PDIP Through Hole 12 V, 15 V, 18 V, 24 V, 28 V, 3 V, 5 V, 9 V 8 ±15V No 0.5mV -40 °C +85 °C 1GΩ 74dB - 0.2 mA
RS Stock No. 252-1616
Mfr. Part No.INA126PA
£2.34
Each
Units
Dual PDIP Through Hole 12 V, 15 V, 18 V, 24 V, 28 V, 3 V, 5 V, 9 V 8 ±15V No 0.5mV -40 °C +85 °C 1GΩ 74dB - 0.2 mA
RS Stock No. 759-0080
Mfr. Part No.AD8495ARMZ
£4.76
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. 121-6694
Mfr. Part No.AD8495ARMZ
£3.978
Each (In a Tube of 50)
Units
- - - - - - - - - - - - - -
RS Stock No. 912-9917
Mfr. Part No.AD8429ARZ
£4.906
Each (In a Tube of 98)
Units
Dual SOIC Surface Mount - 8 ±4 ±18V No 150µV -40 °C +125 °C 1.5GΩ 134dB 15MHz 7 mA
RS Stock No. 764-8747
Mfr. Part No.AD8429ARZ
£6.49
Each
Units
Dual SOIC Surface Mount - 8 ±4 ±18V No 150µV -40 °C +125 °C 1.5GΩ 134dB 15MHz 7 mA
RS Stock No. 121-8507
Mfr. Part No.INA125PA
£4.254
Each (In a Tube of 25)
Units
- - - - - - - - - - - - - -
RS Stock No. 252-1593
Mfr. Part No.INA125PA
£5.01
Each
Units
Dual, Single PDIP Through Hole 5 V 16 ±15V No 0.5mV -55 °C +125 °C 100GΩ 72dB - -
RS Stock No. 106-7014
Mfr. Part No.AD595CQ
£22.287
Each (In a Tube of 25)
Units
Dual, Single CDIP Through Hole 5 V 14 ±15V - - -55 °C +125 °C - - 15kHz -
RS Stock No. 169-8737
Mfr. Part No.AD595CQ
£25.30
Each
Units
Dual, Single CDIP Through Hole 5 V 14 ±15V No - -55 °C +125 °C - - 15kHz -
RS Stock No. 100-0759
Mfr. Part No.INA128PA
£5.508
Each (In a Tube of 50)
Units
Dual PDIP Through Hole - 8 ±15V - 125µV -40 °C +85 °C 100GΩ 73dB 1.3MHz -
RS Stock No. 207-2388
Mfr. Part No.INA128PA
£6.40
Each
Units
Dual PDIP Through Hole - 8 ±15V No 125µV -40 °C +85 °C 100GΩ 73dB 1.3MHz -
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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 (AC power line frequency) are present. Instrumentation Amplifiers, Dual, Texas ...
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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 (AC power line frequency) are present. Instrumentation Amplifiers, Single, Texas ...
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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 (AC power line frequency) are present. Instrumentation Amplifiers, Dual, Analog ...
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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 (AC power line frequency) are present. Instrumentation Amplifiers, Analog Devices. ...