Instrumentation Amplifier with DC Rejection Reference Design TIPD191 (ACTIVE)

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

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

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data


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

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA128 Download -
Download Download
OPA188 Download Download
Download Download
Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1080 14 May 2015
Design files (2)
Title Type Size (KB) Date
PDF 205 02 Jun 2015
PDF 327 02 Jun 2015
Related Tools & Software

Software (1)



Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles