TIDA-01053

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

TIDA-01053

Design files

Overview

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

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.

TIDUCL4.PDF (3995 K)

Reference design overview and verified performance test data

TIDRQJ3.PDF (236 K)

Detailed schematic diagram for design layout and components

TIDRQJ4.PDF (65 K)

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

TIDRQJ5.PDF (162 K)

Detailed overview of design layout for component placement

TIDRQJ7.ZIP (2230 K)

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

TIDCDB9.ZIP (401 K)

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

TIDRQJ6.PDF (700 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Fully differential amplifiers

THS4551Low Noise, Precision, 150MHz, Fully Differential Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

OPA625High Bandwidth, High Precision, Low Noise & Distortion Amplifier SAR ADC Driver with Power Scaling

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

OPA376Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

Data sheet document-pdfAcrobat PDF open-in-new HTML
Series voltage references

REF60505-V, 5-ppm/°C high-precision voltage reference with integrated buffer & enable pin

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

Technical documentation

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Type Title Date
* Design guide ADC Driver Ref Design Optimizing THD, Noise, and SNR for High Dynamic Range Apr. 17, 2017

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-00732 18-bit, 2-Msps Isolated Data Acquisition Reference Design to Achieve Maximum SNR and Sampling Rate TIDA-01035 20-bit Isolated Data Acquisition Reference Design Optimizing Jitter for Max SNR and Sample Rate TIDA-01037 20-bit, 1-MSPS Isolator Optimized Data Acquisition Reference Design Maximizing SNR and Sample Rate TIDA-01050 Optimized Analog Front End DAQ System Reference Design for 18 bit SAR Data Converters TIDA-01051 Reference Design Optimizing FPGA Utilization and Data Throughput for Automatic Test Equipment TIDA-01052 ADC Driver Reference Design Improving Full Scale THD Using Negative Supply TIDA-01054 Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems TIDA-01055 ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems TIDA-01056 20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI TIDA-01057 Reference Design Maximizing Signal Dynamic Range for True 10 Vpp Differential Input to 20 bit ADC

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