Single-Supply Strain Gauge in a Bridge Configuration Reference Design
TIPD170
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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

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Test Data

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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

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 861 02 Nov 2015
Design files (2)
Title Type Size (KB) Date
PDF 112 07 Dec 2015
PDF 183 07 Dec 2015
Related Tools & Software

Software (1)



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