Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor
TIPD168
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power
(PDF 941 KB)
11 Jun 2014
-
TIPD168 Design File
(ZIP 3506 KB)
08 Sep 2014
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
See the Important Notice and Disclaimer covering reference designs and other TI resources.
