16 bit 1MSPS Data Acquisition Reference Design for Single-Ended Multiplexed Applications

(ACTIVE) TIPD173

Description & Features

Technical Documents

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Key Document

Description

This TI Precision Verified Design details a systematic design methodology for a 16 bit, 1MSPS, single-ended data acquisition (DAQ) block optimized to achieve excellent settling time, power consumption, static performance and dynamic performance for multiplexed applications.  The design features a 16-bit, high-precision, successive-approximation-register (SAR) analog-digital converter (ADC); low noise, low power and wide bandwidth ADC input drive circuitry; and, a very low drift ADC voltage reference and corresponding reference input drive circuitry.

This design is well suited to applications which require low-latency, multi-channel,  data acqusition for multi-sensor measurements such as environmental (temperature, pressure, etc..), biopotential and power measurement.

Features
  • Contains Theory, Component Selection, Simulation, Schematic, PCB Layout, and Measured Performance Results
  • Optimized for 900ns (max) 16-bit step-input transient settling time
  • Power:  21.5mW @ AVDD = 3.3V
  • Measured ENOB of 14.58 bits
  • Utilizes ADS8860 (16bit, 1Msps SAR ADC), OPA320 (Input Driver), THS4281 + OPA333 + REF5040 (Reference Driver)

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (6)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS8860  16 bit 1 MSPS, Serial, Pseudo-Differential Input, Micro Power, Miniature, SAR ADC  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
OPA320  Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA333  1.8V, 17µA, microPower, Precision, Zero-Drift CMOS Op Amp   Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5040  Low Noise, Very Low Drift, Precision Series Voltage Reference  Voltage Reference  Sample & Buy Not Available
REF6025  High-Precision Voltage Reference With Integrated High-Bandwidth Buffer  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
THS4281  Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules

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 1861 20 Apr 2017 397
Design files (4)
Title Abstract Type Size (KB) Date Views
PDF 349 09 May 2017 346
PDF 106 09 May 2017 126
ZIP 50 02 Oct 2014 76
ZIP 302 02 Oct 2014 51
Related Tools & Software

Software (2)




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