Instrumentation Amplifiers

Intersil's instrumentation amplifiers (in-amps) and programmable gain instrumentation amplifiers (PGIAs) provide the precision and high performance needed in many industrial, test and measurement, data acquisition and medical applications.

Browse Products

Single Supply Instrumentation Amplifiers

Part Supply Voltage Rail-to-Rail I/O VOS (max) CMRR PSRR Gain Error Typ Bandwidth IS (max) IBIAS
EL8170 2.4-5.5V Yes 0.2mV 114dB 104dB 0.35% 192kHz 0.095mA 0.7nA
EL8172 2.4-5.5V Yes 0.3mV 100dB 104dB 0.2% 170kHz 0.095mA 10pA

Programmable Gain Instrumentation Amplifiers

Single-Ended Output Diff Output Selectable Gain Options Supply Voltage VOS (max) CMRR PSRR Gain Error Typ Bandwidth Noise VN
ISL28533 ISL28633 1, 2, 4, 5, 10, 20, 40, 50, 100 2.5-5.5V 5μV 138dB 140dB 0.05% 2.3MHz 17nV/√Hz
ISL28534 ISL28634 1, 2, 10, 50, 100, 200, 300, 500, 1000 2.5-5.5V 5μV 138dB 140dB 0.05% 2.3MHz 17nV/√Hz
ISL28535 ISL28635 1, 100, 120, 150, 180, 200, 300, 500, 1000 2.5-5.5V 5μV 138dB 140dB 0.05% 2.3MHz 17nV/√Hz
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About Intersil Instrumentation Amplifiers

Instrumentation amplifiers are precision, integrated operational amplifiers that have differential input and single-ended or differential output. Some of their key features include very high common mode rejection ratio (CMRR), high open loop gain, low DC offset, low drift, low input impedance and low noise. Programmable gain instrumentation amplifiers are specialized in-amps that have fixed gain levels. The appropriate gain level is selected by digital means.

Instrumentation Amplifiers Key Features

  • Extremely low supply currents
    • <95μA max. supply current
  • Rail-to-rail input/output
  • Single supply 2.4V to 5.5V operation
    • Operate above and below the rails
    • Ground sensing option
  • Compensated for a gain of 100 or more

Programmable Gain Instrumentation Amplifiers Key Features

  • Ultra-high precision front end amplifier
  • Zero drift instrumentation amplifier
  • 9-pin selectable gain options: AV = 1 to 1,000
  • Rail-to-rail input/output
  • Single-ended output (ISL2853x)
  • Differential output (ISL2863x)
  • RFI filtered inputs improve EMI rejection
Videos & Resources
Play Video
9:27
This video examines the use of instrumentation amplifiers (INA or in amps) for sensor applications.
Play Video
1:48
Intersil introduces a whitepaper that explains how the instrumentation amplifier (INA or in amp) strips off the common mode voltage leaving only the amplifier's differential voltage from the sensor.
Play Video
28:16
This webinar provides an introductory technical overview of Intersil's analog signal path products.
Play Video
10:18
The ISL2853x/63xEV2Z board allows simple evaluation of the ISL2853x and ISL2863x 5V zero drift programmable gain instrumentation amplifiers. Learn how easily you can set gain of amplifier anywhere from 1 to 1000.
Play Video
9:27
This video examines the use of instrumentation amplifiers (INA or in amps) for sensor applications.
Play Video
1:48
Intersil introduces a whitepaper that explains how the instrumentation amplifier (INA or in amp) strips off the common mode voltage leaving only the amplifier's differential voltage from the sensor.
Play Video
28:16
This webinar provides an introductory technical overview of Intersil's analog signal path products.
Play Video
10:18
The ISL2853x/63xEV2Z board allows simple evaluation of the ISL2853x and ISL2863x 5V zero drift programmable gain instrumentation amplifiers. Learn how easily you can set gain of amplifier anywhere from 1 to 1000.
Play Video
9:27
This video examines the use of instrumentation amplifiers (INA or in amps) for sensor applications.
Play Video
1:48
Intersil introduces a whitepaper that explains how the instrumentation amplifier (INA or in amp) strips off the common mode voltage leaving only the amplifier's differential voltage from the sensor.
Play Video
28:16
This webinar provides an introductory technical overview of Intersil's analog signal path products.
Play Video
10:18
The ISL2853x/63xEV2Z board allows simple evaluation of the ISL2853x and ISL2863x 5V zero drift programmable gain instrumentation amplifiers. Learn how easily you can set gain of amplifier anywhere from 1 to 1000.

Selection Guides

Precision Analog Products Precision Analog Products

lc-096.pdf (2.54 MB)
Mar 2016

Infrastructure Power Solutions Infrastructure Power Solutions

lc-113.pdf (1.74 MB)
May 2016

White Papers

How to Monitor Sensor Health with Instrumentation Amplifiers How to Monitor Sensor Health with Instrumentation Amplifiers

This white paper discusses the basics of a 3-op amp INA, advantages of zero-drift amps, RFI input filters, monitoring sensor health and programmable gain amps.
Feb 2016

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