Dual Channel Data Acquisition System for Optical Encoders, 12 Bit, 1MSPS

(ACTIVE) TIPD117

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 provides the theory, component selection, simulation, PCB design, and measurement details for a 12-bit 1-MSPS single supply dual channel simultaneous data acquisition system. This circuit achieves 73 dB SINAD for a 4.5 V differential signal at 2 KHz input frequency. Differential input may have a wide range of common mode voltage. Circuit includes a low impedence buffer, low pass RC filter and 12 bit, Dual, Simultaneous Sampling SAR ADC with internal reference voltage source.

Features
  • 12-Bit, 2-Channel, Simultaneous Data Acquisition at 1-MSPS Throughput
  • 72dB SNR, 85dB THD, 71.5dB SINAD AC Performance
  • ±4.5 V Differential Input Voltage Signal
  • Alternate component choices with measured results shown for 16-bit and 14-bit performance upgrade

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

Download Design Files


Bill of Materials (BOM)

Find the complete list of components in this reference design.

Download BOM

TI Devices (5)

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
ADS7254  SAR ADC, Dual, 1 MSPS, 12 Bit, Simultaneous Sampling  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
ADS7854  SAR ADC, Dual, 1 MSPS, 14 Bit, Simultaneous Sampling  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
ADS8354  SAR ADC, Dual, 700 kSPS, 16 Bit, Simultaneous Sampling  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
THS4521  Very low power rail-to-rail output fully differential amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
THS4531  Ultra low power 0.25mA, RRO, 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)
ADS7254 Download Download
Download
ADS7854 Download
Download Download
ADS8354 Download Download
Download Download
THS4521 Download Download
Download Download
THS4531 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.

Application notes (1)
Title Abstract Type Size (KB) Date Views
PDF 716 11 Apr 2014 51
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1380 06 Jun 2013 28
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 57 22 Oct 2013 9
PDF 71 22 Oct 2013 30
ZIP 306 17 Jul 2013 21
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