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

(ACTIVE) TIPD173

Description & Features

Technical Documents

Support & Training

Order Now


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

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.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


Bill of Materials (BOM)

Find the complete list of components in this reference design.

Download BOM

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 references  Sample & Buy Not Available
REF6025  5ppm/C High-Precision Voltage Reference with Integrated High-Bandwidth Buffer  Voltage references  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

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS8860 Download
OPA320 Download Download
OPA333 Download Download
Download Download
Download Download
REF5040 Download Download
Download Download
REF6025 Download Download
THS4281 Download Download
Download Download
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


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 16
Design files (4)
Title Abstract Type Size (KB) Date Views
PDF 349 09 May 2017 21
PDF 106 09 May 2017 6
ZIP 50 02 Oct 2014 7
ZIP 302 02 Oct 2014 12
Related Tools & Software

Software (2)



Support & Training

Try our support forums.
Search expert answers for this part Ask a new question

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

Blogs