High-Precision Reference Design for Buffering a DAC Signal TIDA-01402 (ACTIVE)

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Key Document

Description

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).

Features
  • 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)

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Schematic/Block Diagram

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC8830  16-bit, single-channel, ultra-low power, voltage output DAC  Digital-to-analog converters (DACs)  Sample & Buy Not Available
OPA340  Single, single-supply, rail-to-rail, low power operational amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA388  10MHz, CMOS, Zero-Drift, Zero-Crossover, True RRIO Precision Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5040  Low Noise, Very Low Drift, Precision Series Voltage Reference  Voltage references  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DAC8830 Download Download
OPA340 Download Download
Download Download
Download Download
OPA388 Download
Download
Download
REF5040 Download Download
Download Download

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Technical Documents

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Datasheet (1)
Title Type Size (KB) Date
PDF 2834 22 May 2019
User guides (1)
Title Type Size (KB) Date
PDF 5124 03 Feb 2017
Design files (6)
Title Type Size (KB) Date
ZIP 493 03 Feb 2017
ZIP 985 03 Feb 2017
PDF 168 03 Feb 2017
PDF 94 03 Feb 2017
PDF 43 03 Feb 2017
PDF 241 03 Feb 2017

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