Single-Ended Input to Differential Output Conversion Circuit Reference Design

(ACTIVE) 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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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

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 1702 29 Aug 2013 1,811
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 399 22 Oct 2013 45
PDF 61 29 Aug 2013 26
PDF 77 29 Aug 2013 372
More literature (1)
Title Abstract Type Size (KB) Date Views
PDF 743 13 Jan 2015 279
Related Tools & Software

Software (3)




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