ADC Driver Reference Design Optimizing THD, Noise, and SNR for High Dynamic Range Instrumentation

(ACTIVE) TIDA-01053

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Key Document

Description

The TIDA-01053 is an ADC driver reference design to optimize the THD, noise and the full system SNR for the high dynamic range instrumentation. The high capacitive nature of the ADC input presents some unique challenges for driver design and part selection process to ensure stability, low noise, high current drive capability and low harmonic distortion performance at the same time. This reference design aims to highlight performance benefits to using either a fully differential amplifier or two single ended amplifiers when driving an ADC.

Features
  • ADC driver design for best noise and THD performance
  • Fully differential driver
  • Dual op amp configuration
  • Noise and THD measurements for the standalone driver

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA625  High Bandwidth, High Precision, Low Noise & Distortion Amplifier SAR ADC Driver with Power Scaling  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF6050  5ppm/C High-Precision Voltage Reference with Integrated High-Bandwidth Buffer  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
THS4551  Low Noise, Precision, 150MHz, Fully Differential Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA376 Download Download
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OPA625 Download Download
REF6050 Download Download
THS4551 Download
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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 Views TI Recommends
PDF 3995 17 Apr 2017 40
Design files (6)
Title Abstract Type Size (KB) Date Views TI Recommends
ZIP 401 30 Mar 2017 0
ZIP 2230 30 Mar 2017 5
PDF 700 30 Mar 2017 6
PDF 162 30 Mar 2017 5
PDF 65 30 Mar 2017 4
PDF 236 30 Mar 2017 15
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Reference Designs  ( 10 )


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