Single-Supply Strain Gauge in a Bridge Configuration Reference Design

(ACTIVE) TIPD170

Description & Features

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Key Document

Description

This strain gauge reference design accurately measures the resistance of a strain gauge by being placed in a bridge configuration. The differential voltage of the bridge produced by variation in strain gauge resistance is amplified using the INA333. The bridge excitation voltage and INA333 reference voltage is supplied using the REF5025.

Features
  • Measured Uncalibrated Error = 0.953 %
  • Measured Calibrated Error = 0.0154 %
  • 5 V Single Supply
  • Output : 225 mV to 4.72 V
  • 2.5 V Reference Voltage
  • This strain gauge reference design includes theory, complete error analysis, component selection, simulation, PCB design, and measured data that correlates with theory, calculations, and simulation

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


  



Schematic/Block Diagram

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Test Data

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Bill of Materials (BOM)

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA333  Low-Power, Zero-Drift, Precision Instrumentation Amplifier  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
REF5025  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA333 Download Download
Download -
REF5025 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.

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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 861 02 Nov 2015 104
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 112 07 Dec 2015 10
PDF 183 07 Dec 2015 54
Related Tools & Software

Software (1)



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