Single-Ended Input to Differential Output Conversion Circuit Reference Design
TIPD131
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Key Document

Description

This TI Precision Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a single ended input to differential output circuit which converts a single ended input of +0.1V to +2.4V into a differential output of ± 2.3V on a single +2.7V supply.  The output range is intentionally limited to maximize linearity.  The circuit is composed of 2 amplifiers.  One amplifier acts as a buffer and creates a voltage, Vout+.  The second amplifier inverts the input and adds a reference voltage to generate Vout-.  Both Vout+ and Vout- range from 0.1V to 2.4V.  The difference, Vdiff, is the difference between Vout+ and Vout-.  This makes the differential output voltage range +2.3V.

Features
  • 100kHz Small Signal Bandwidth
  • Low Power:  100mA current consumption
  • ±0.1% FSR Vdiff Uncalibrated Error
  • ±0.01% FSR Vdiff Calibrated Error
  • Converts 0.1V - 2.4V Input to ±2.3V Output at +1.25V Vcm


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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 1702 29 Aug 2013
Design files (4)
Title Type Size (KB) Date
ZIP 399 22 Oct 2013
ZIP 1446 22 Oct 2013
PDF 61 29 Aug 2013
PDF 77 29 Aug 2013
More literature (1)
Title Type Size (KB) Date
PDF 743 13 Jan 2015
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Software development (2)



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