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. 829-0560
Mfr. Part No.MCP6N16-100E/MS
BrandMicrochip
R 30.382
Each (In a Pack of 5)
units
Single MSOP Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Output 17µV -40 °C +125 °C 1kΩ 112dB 35MHz -
RS stock no. 165-4166
Mfr. Part No.MCP6N16-100E/MS
BrandMicrochip
R 22.803
Each (In a Tube of 100)
units
Single MSOP Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Output 17µV -40 °C +125 °C 1kΩ 112dB 35MHz -
RS stock no. 829-0557
Mfr. Part No.MCP6N16-001E/MS
BrandMicrochip
R 36.666
Each (In a Pack of 5)
units
Single MSOP Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Output 85µV -40 °C +125 °C 1kΩ 89dB 500kHz -
RS stock no. 755-9556
Mfr. Part No.MCP6N11-100E/SN
BrandMicrochip
R 20.245
Each (In a Pack of 2)
units
Single SOIC Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Input/Output 0.35V -40 °C +125 °C - 88dB 35MHz 0.8 mA
RS stock no. 829-0551
Mfr. Part No.MCP6N16-010E/MS
BrandMicrochip
R 30.382
Each (In a Pack of 5)
units
Single MSOP Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Output 22µV -40 °C +125 °C 1kΩ 103dB 5MHz -
RS stock no. 165-3495
Mfr. Part No.MCP6N11-001E/SN
BrandMicrochip
R 15.318
Each (In a Tube of 100)
units
Single SOIC Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Input/Output 0.35V -40 °C +125 °C - 70dB 500kHz 0.8 mA
RS stock no. 145-9365
Mfr. Part No.MCP6N11-010E/SN
BrandMicrochip
R 15.318
Each (In a Tube of 100)
units
Single SOIC Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Input/Output 0.35V -40 °C +125 °C - 81dB 5MHz 0.8 mA
RS stock no. 755-9546
Mfr. Part No.MCP6N11-001E/SN
BrandMicrochip
R 24.72
Each (In a Pack of 2)
units
Single SOIC Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Input/Output 0.35V -40 °C +125 °C - 70dB 500kHz 0.8 mA
RS stock no. 165-3408
Mfr. Part No.MCP6N11T-001E/MNY
BrandMicrochip
R 15.249
Each (On a Reel of 3300)
units
Single TDFN Surface Mount 5.5 V 8 - Rail to Rail Input/Output 3mV -40 °C +125 °C - 70dB 500kHz 0.8 mA
RS stock no. 146-0182
Mfr. Part No.MCP6N11-100E/SN
BrandMicrochip
R 15.318
Each (In a Tube of 100)
units
Single SOIC Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Input/Output 0.35V -40 °C +125 °C - 88dB 35MHz 0.8 mA
RS stock no. 146-0294
Mfr. Part No.MCP6N16-001E/MS
BrandMicrochip
R 22.803
Each (In a Tube of 100)
units
Single MSOP Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Output 85µV -40 °C +125 °C 1kΩ 89dB 500kHz -
RS stock no. 755-9552
Mfr. Part No.MCP6N11-010E/SN
BrandMicrochip
R 24.935
Each (In a Pack of 2)
units
Single SOIC Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Input/Output 0.35V -40 °C +125 °C - 81dB 5MHz 0.8 mA
RS stock no. 761-7208
Mfr. Part No.MCP6N11T-001E/MNY
BrandMicrochip
R 20.325
Each (In a Pack of 4)
units
Single TDFN Surface Mount 5.5 V 8 - Rail to Rail Input/Output 3mV -40 °C +125 °C - 70dB 500kHz 0.8 mA
RS stock no. 165-4165
Mfr. Part No.MCP6N16-010E/MS
BrandMicrochip
R 22.803
Each (In a Tube of 100)
units
Single MSOP Surface Mount 1.8 → 5.5 V 8 - Rail to Rail Output 22µV -40 °C +125 °C 1kΩ 103dB 5MHz -