TIPD125

Bipolar +/-10V Output from a Unipolar DAC for Industrial Voltage Drivers

TIPD125

Design files

Overview

This Verified Design is for conditioning a low-cost, unipolar, generic DAC into an accurate bipolar signal source using an op amp and 3 resistors. The circuit is designed with reactive load stability in mind and is compensated to drive nearly any conventional capacitive load associated with long cable lengths. 

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Features
  • Conditions 0-2.5V to +/-10V Output
  • 0.1%FSR Uncalibrated Error
  • DAC8560 with 2ppm/°C Internal Reference
  • OPA188 Zero-offset, Zero-Drift Amplifier
This verified design includes:
  • Theory
  • Component Selection
  • TINA-TI Simulation
  • Schemics and PCB Layout
  • Verification and Measured Performance
  • Modification Options

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDR223.PDF (104 K)

Detailed schematic diagram for design layout and components

SLAC596.ZIP (1071 K)

Detailed schematic diagram for design layout and components

TIDR224.PDF (83 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC168.ZIP (930 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Precision DACs (<=10MSPS)

DAC856016-bit, single-channel, low-power, ultra-low glitch, voltage output DAC with 2.5V,2ppm/°C reference

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision op amps (Vos<1mV)

OPA188Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML

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Software

Support software

TIPD125 Simulation – TIDC169.ZIP (34 K)

Support software

TIPD125 Test Files – TIDC170.ZIP (22 K)

Technical documentation

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Type Title Date
* User guide TIPD125 Verified Design Reference Guide Jun. 18, 2013
Technical article Industrial DACs: An evolution of 3-wire analog outputs May 23, 2014

Related design resources

Design tools & simulation

SIMULATION TOOL
TINA-TI SPICE-based analog simulation program

Support & training

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