Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor

(ACTIVE) TIPD168

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Key Document

Description

This Verified Precision Design details the design procedure, simulated results, and showcases the actual performance of a 12-bit discrete data acquisition block using the ADS7042, optimized for extremely low power, small form factor applications for the following three different optimizations: 

Optimization #1: 12 bit, 500ksps optimized for current monitoring, battery monitoring, electromyography (EMG), skin impedance, and wearable fitness

Optimization #2: 12 bit, 1Msps  optimized for hard disc drives, motor control, motor encoders, optical encoders, and optical modules

Optimization #3: 12 bit, < 1ksps optimized for tilt, gyro, pressure, temperature, gas, chemical, blood glucose, low voltage (1.8V-3.3V, JESD8-7A), and DC sensor measurements

Features
  • Covers three different detailed implementations optimized for speed/power/performance
  • Contains Theory, Component Selection, Simulation, Schematic, PCB Layout, and Measured Performance Results for all three implementations
  • Includes detailed theory, calculations, and simulations of ADC drive circuitry
  • Demonstrated performance of ultra-low power (1mW) 12-bit SAR data acqusition
  • Features the ADS7042:  the world's smallest 12-bit SAR ADC

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


  




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ADS7042EVM-PDK:
ADS7042 Evaluation Module

$199.00(USD)




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TI Devices (3)

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
ADS7042  12-Bit 1MSPS Ultra-Low-Power Ultra-Small-Size SAR ADC With SPI Interface  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
OPA314  3MHz, Low-Power, Low-Noise, RRI/O, 1.8V CMOS Operational Amplifier   Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA835  Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB 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 941 11 Jun 2014 623
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 3361 08 Sep 2014 159
PDF 93 06 Sep 2014 37
PDF 104 06 Sep 2014 398
Related Tools & Software

Software (2)




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