Single-Supply Low-Input Voltage Optimized Precision Full-Wave Rectifier Reference Design
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Key Document


This TI Verified Design implements a single-supply full-wave rectifier. The design has been optimized to support excellent linearity for small-input voltage signals from 5mV – 200mV.  The design is used to turn low-level alternating current (ac) signals to positive polarity signals. The circuit is designed to function up to 50 kHz and has excellent linearity at signal levels as low as 5 mVpp. The circuit can be used in sensor acquisition or signal strength indication applications that need to quantify values of low-level input signals which have positive and negative polarities.

  • TI Precision Designs: Verified Design includes Theory, Component Selection, TINA-TI
  • Simulation, PCB Schematic & Layout, Bill of Materials, and Measured Performance
  • Outputs the full-wave rectified (absolute value) of the input signal
  • Supports low-level input signals down to 5mV with excellent linearity
  • Operates from a +5V Supply

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA350  Single, single-supply, rail-to-rail, high speed, low noise 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)
OPA350 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1036 17 Jul 2013
Design files (2)
Title Type Size (KB) Date
PDF 83 18 Dec 2014
PDF 159 18 Dec 2014
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