Single-Ended Input to Differential Output Conversion Circuit Reference Design TIPD131 (ACTIVE)

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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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TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA2316  10-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA314  3MHz, Low-Power, Low-Noise, RRI/O, 1.8V CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA316  10-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA320  Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA333  1.8V, 17µA, microPower, precision, zero-drift CMOS op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA374  6.5MHz, 585uA, Rail-to-Rail I/O CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA4316  10-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS 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)
OPA2316 Download
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OPA314 Download
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OPA316 Download Download
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OPA320 Download Download
OPA333 Download Download
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OPA374 Download Download
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OPA376 Download Download
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OPA4316 Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1702 29 Aug 2013
Design files (3)
Title Type Size (KB) Date
ZIP 399 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
Related Tools & Software

Software (3)



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