Voltage-Mode Multiplying DAC Reference Design


Design files


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.

  •  12-bit, 0-2.5 V output
  •  Multiplying DAC with single supply
  •  <0.1 %FSR total unadjusted error
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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


Reference design overview and verified performance test data

TIDCAY1.ZIP (16754 K)

Detailed schematic diagram for design layout and components

TIDRH27.PDF (240 K)

Detailed schematic diagram for design layout and components

TIDRH28.PDF (107 K)

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


Includes TI products in the design and potential alternatives.

Precision DACs (≤10 MSPS)

DAC781112-bit, single-channel, serial input multiplying DAC with 0.2us settling time

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA192High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier

Data sheet: PDF | HTML
Series voltage references

REF50252.5-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Voltage-Mode Multiplying DAC Design Guide Aug. 12, 2015

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