Single-Supply, Unipolar, Multiplying DAC Reference Design

(ACTIVE) TIPD157

Description & Features

Technical Documents

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Key Document

Description

This multiplying DAC (MDAC) reference design outputs unipolar voltages from 0 V to 2.5 V. This design does not require dual supplies to realize a unipolar, positive output voltage. This design removes the need for a negative supply rail by applying a bias voltage to the output transimpedance stage.

Features
  • TI Designs - Precision: Verified Design includes Theory, Component Selection, TINA-TI Simulation, PCB Schematic & Layout, Bill of Materials, and Measured Performance.
  • 12-bit, 0-2.5 V output
  • Multiplying DAC with single supply
  • <0.1 %FSR total unadjusted error
  • 1 LSB INL

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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Bill of Materials (BOM)

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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
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5050  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
OPA376 Download Download
Download Download
Download Download
REF5050 Download Download
Download Download

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


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 1179 23 Apr 2014
Design files (2)
Title Abstract Type Size (KB) Date
PDF 160 16 Feb 2015
PDF 206 16 Feb 2015
Related Tools & Software

Software (1)



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