TIDA-01525

8-channel, 16-bit, 200mA current output DAC reference design

TIDA-01525

Design files

Overview

This reference design combines the small size and high performance of the DAC80508 8-channel, 16-bit digital-to-analog converter (DAC) with precision op-amps to create a high-density and accurate current-source solution. The reference design has an maximum output current of 200 mA and allows for a minimal PVDD supply voltage to reduce power consumption for high efficiency. It also features a low current-noise output due to the low reference-voltage noise of the DAC80508 and low voltage and current noise of the OPA2376. 

Features
  • Eight channels of programmable current, 200-mA range
  • High channel density
  • <1.5% total unadjusted error
  • <120-µA offset error
  • 3.4-µA RMS bandwidth-limited current noise

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.

TIDUDH4.PDF (1810 K)

Reference design overview and verified performance test data

TIDRXV2.PDF (317 K)

Detailed schematic diagram for design layout and components

TIDRXV3.PDF (45 K)

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

TIDRXV4.PDF (174 K)

Detailed overview of design layout for component placement

TIDRXV6.ZIP (904 K)

Files used for 3D models or 2D drawings of IC components

TIDCF21.ZIP (1706 K)

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

TIDRXV5.PDF (657 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

N-channel MOSFETs

CSD13381F412-V, N channel NexFET™ power MOSFET, single LGA 1 mm x 0.6mm, 180 mOhm, gate ESD protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
P-channel MOSFETs

CSD23285F5-12-V, P channel NexFET™ power MOSFET, single LGA 0.8 mm x 1.5 mm, 35 mOhm, gate ESD protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision DACs (<=10MSPS)

DAC80508True 16-bit, 8-channel, SPI, voltage-output DAC in WCSP package with precision internal reference

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

OPA2376Dual, Precision, Low Noise, Low Quiescent Current Operational Amplifier ;

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

Technical documentation

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Type Title Date
* Design guide 8-Channel, 16-Bit, 200-mA Current Output DAC Reference Design Nov. 30, 2018

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