Voltage-Mode Multiplying DAC Reference Design

(ACTIVE) TIPD159

Description & Features

Technical Documents

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Key Document

Description

This multiplying DAC (MDAC) circuit creates a unipolar voltage output from 0 V to 2.5 V. This design does not require dual supplies to realize a unipolar, positive output voltage as with typical MDAC circuits. This design removes the need for a negative rail by using the MDAC in “reverse” to form a binary weighted voltage divider.

Features
  •  12-bit, 0-2.5 V output
  •  Multiplying DAC with single supply
  •  <0.1 %FSR total unadjusted error

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Test Data

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC7811  12-bit, single-channel, serial input multiplying DAC with 0.2us settling time  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
OPA192  High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5025  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DAC7811 Download Download
OPA192 Download Download
Download
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REF5025 Download Download
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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
PDF 869 12 Aug 2015
Design files (2)
Title Abstract Type Size (KB) Date
PDF 107 21 Sep 2015
PDF 240 21 Sep 2015
Related Tools & Software

Software (1)



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