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Instrumentation amplifiers (sometimes shortened to In-Amps) are a type of precision gain block used in electronic and measurement test equipment. Instrumentation amplifiers act as a differential amplifier; a type of electronic amplifier that amplifies the voltage difference between two inputs but suppresses any voltage signals that are common to the two inputs. RS offer a range of instrumentation amplifiers from several trusted brands in the industry, including Analog Devices, Microchip, Texas Instruments, and more.

### How do instrumentation amplifiers work?

Instrumentation amplifiers are almost always composed of 3 op-amps (operational amplifiers) and several resistors. They provide the most important function of CMR (common-mode rejection) by cancelling out any signals that have the same potential as received by both of the inputs. Any signals that have different potentials get amplified. They are used for low frequency signals (such as <1MHz), which they amplify whilst also cutting out any common-mode noise that may be present in the input signal.

### What are the instrumentation amplifiers used for?

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. 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.

### Typical applications
- Test & Measurement Industrial Devices
- Data Acquisition Devices
- Medical Devices


Shop our range of Instrumentation Amplifiers supplies & accessories. Free Next Day Delivery. Browse our latest Instrumentation Amplifiers offers.

Instrumentation Amplifiers | In-Amp | INA128 | RS

Instrumentation Amplifiers

MCP6N16-001E/MS Microchip 85μV Offset 500kHz 1.8 5.5 V, 8-Pin MSOP

MCP6N16-100E/MS Microchip 17μV Offset 35MHz 1.8 5.5 V, 8-Pin MSOP

MCP6N16-010E/MS Microchip 22μV Offset 5MHz 1.8 5.5 V, 8-Pin MSOP

HV56022-V/KNX Microchip 110mV Offset 124Hz 20-Pin VQFN

MCP6N11-010E/SN Microchip 0.35V Offset 5MHz 1.8 5.5 V, 8-Pin SOIC

INA321EA/250 Texas Instruments 1mV Offset 500kHz 8-Pin MSOP-8

HV56020-V/KXX Microchip 110mV Offset 124Hz 43-Pin VQFN

MCP6N11-001E/SN Microchip 0.35V Offset 500kHz 1.8 5.5 V, 8-Pin SOIC

Buy from our selection of instrumentation amplifiers from Intersil. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Intersil Instrumentation Amplifiers | RS

Buy from our selection of instrumentation amplifiers from Devices. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Devices Instrumentation Amplifiers | RS Components

Buy from our selection of instrumentation amplifiers from Integrated. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Integrated Instrumentation Amplifiers | RS Components

Buy Microchip Instrumentation Amplifiers. Browse our latest Microchip Instrumentation Amplifiers offers. Free Next Day Delivery.

Microchip Instrumentation Amplifiers

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