High-Precision Reference Design for Buffering a DAC Signal


Design files


This reference design features the industry's first zero-crossover and zero-drift amplifier (OPA388) to buffer the analog output of a digital-to-analog converter (DAC). It demonstrates the importance of the zero-crossover and zero-drift feature and how they can minimize the integral non-linearity (INL) of the system as well as make use of the full-scale range of the DAC (DAC8830).

  • Precision DAC (DAC8830) provides excellent linearity, low glitch, low noise and fast setting
  • Operates at 2.7-5.5 V single-supply, which is compatible with most DSP/MCU power requirements
  • Zero-crossover, zero-drift op amp (OPA388) provides true precision to minimize contributions to DAC INL (<0.5 LSB)
??image.gallery.download_en_US?? View video with transcript Video

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.

TIDUCT8.PDF (5124 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement


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

TIDCD53.ZIP (493 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Precision op amps (Vos<1mV)

OPA340Single, single-supply, rail-to-rail, low power operational amplifier

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

OPA388Single, 10-MHz, CMOS, zero-drift, zero-crossover, true RRIO precision operational amplifier

Data sheet: PDF | HTML
Precision DACs (≤10 MSPS)

DAC883016-bit, single-channel, ultra-low power, voltage output DAC

Data sheet: PDF
Series voltage references

REF50404.096-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide High-Precision Reference Design for Buffering a DAC Signal Feb. 03, 2017

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​