Instrumentation Amplifiers

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 Components 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

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Omschrijving Prijs 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-stocknr. 755-9546
FabrikantnummerMCP6N11-001E/SN
FabrikantMicrochip
1,20 €
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 165-3495
FabrikantnummerMCP6N11-001E/SN
FabrikantMicrochip
0,864 €
Each (In a Tube of 100)
Aantal stuks
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-stocknr. 146-0182
FabrikantnummerMCP6N11-100E/SN
FabrikantMicrochip
0,864 €
Each (In a Tube of 100)
Aantal stuks
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-stocknr. 755-9556
FabrikantnummerMCP6N11-100E/SN
FabrikantMicrochip
1,20 €
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 145-9365
FabrikantnummerMCP6N11-010E/SN
FabrikantMicrochip
0,864 €
Each (In a Tube of 100)
Aantal stuks
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-stocknr. 203-4727
FabrikantnummerHV56020T-V/KXX
FabrikantMicrochip
2,148 €
Each (On a Reel of 3000)
Aantal stuks
Dual VQFN Surface Mount 2.7 V 43 - No 110V - - - - - -
RS-stocknr. 165-4165
FabrikantnummerMCP6N16-010E/MS
FabrikantMicrochip
1,299 €
Each (In a Tube of 100)
Aantal stuks
Single MSOP Surface Mount 1.8 5.5 V 8 - Rail to Rail Output 22µV -40 °C +125 °C 1kΩ 103dB 5MHz -
RS-stocknr. 203-4728
FabrikantnummerHV56020T-V/KXX
FabrikantMicrochip
2,586 €
Each (In a Pack of 5)
Aantal stuks
Dual VQFN Surface Mount 2.7 V 43 - No 110V - - - - - -
RS-stocknr. 755-9552
FabrikantnummerMCP6N11-010E/SN
FabrikantMicrochip
1,20 €
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 165-4166
FabrikantnummerMCP6N16-100E/MS
FabrikantMicrochip
1,299 €
Each (In a Tube of 100)
Aantal stuks
Single MSOP Surface Mount 1.8 5.5 V 8 - Rail to Rail Output 17µV -40 °C +125 °C 1kΩ 112dB 35MHz -
RS-stocknr. 761-7208
FabrikantnummerMCP6N11T-001E/MNY
FabrikantMicrochip
0,705 €
Each (In a Pack of 4)
Aantal stuks
Single TDFN Surface Mount 5.5 V 8 - Rail to Rail Input/Output 3mV -40 °C +125 °C - 70dB 500kHz 0.8 mA
RS-stocknr. 829-0557
FabrikantnummerMCP6N16-001E/MS
FabrikantMicrochip
1,806 €
Each (In a Pack of 5)
Aantal stuks
Single MSOP Surface Mount 1.8 5.5 V 8 - Rail to Rail Output 85µV -40 °C +125 °C 1kΩ 89dB 500kHz -
RS-stocknr. 829-0551
FabrikantnummerMCP6N16-010E/MS
FabrikantMicrochip
1,806 €
Each (In a Pack of 5)
Aantal stuks
Single MSOP Surface Mount 1.8 5.5 V 8 - Rail to Rail Output 22µV -40 °C +125 °C 1kΩ 103dB 5MHz -
RS-stocknr. 146-0294
FabrikantnummerMCP6N16-001E/MS
FabrikantMicrochip
1,299 €
Each (In a Tube of 100)
Aantal stuks
Single MSOP Surface Mount 1.8 5.5 V 8 - Rail to Rail Output 85µV -40 °C +125 °C 1kΩ 89dB 500kHz -
RS-stocknr. 829-0560
FabrikantnummerMCP6N16-100E/MS
FabrikantMicrochip
1,806 €
Each (In a Pack of 5)
Aantal stuks
Single MSOP Surface Mount 1.8 5.5 V 8 - Rail to Rail Output 17µV -40 °C +125 °C 1kΩ 112dB 35MHz -