Instrumentation Amplifier with DC Rejection Reference Design

(ACTIVE) TIPD191

Description & Features

Technical Documents

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Key Document

Description

This design is an ac coupled instrumentation amplifier. More specifically, the circuit amplifies ac differential input signals and rejects dc differential and common mode signals. The input is dc coupled, so it achieves effective ac coupling by shifting the instrumentation amplifier reference voltage to cancel output offset.

Features
  • ac coupled INA
  • Maintains excellent CMRR
  • Rejects dc and slow moving offsets
  • Adjustable lower cutoff frequency

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA128  Precision, 130-dB CMRR, 700-µA, Low-Power, Instrumentation Amplifier  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
OPA188  Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier   Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1080 14 May 2015 592
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 205 02 Jun 2015 8
PDF 327 02 Jun 2015 86
Related Tools & Software

Software (1)




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