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TIPD168

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

Design files

TIPD168

Design files

Overview

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
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Design files & products

Design files

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

download Bill of materials (BOM) — TIPD168
TIDRAD8.PDF (93 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Gerber file — TIPD168
TIDC604.ZIP (3362 KB)

Design file that contains information on physical board layer of design PCB

download Schematic — TIPD168
TIDC606.ZIP (3507 KB)

Detailed schematic diagram for design layout and components

download Schematic — TIPD168
TIDRAD7.PDF (104 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

High-speed op amps (GBW ≥ 50 MHz)

OPA835 — Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier

Data sheet: PDF | HTML
Precision ADCs

ADS7042 — 12-Bit 1MSPS Ultra-Low-Power Ultra-Small-Size SAR ADC With SPI Interface

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

ADS7042EVM-PDK — ADS7042 Ultra-Low-Power Ultra-Small-Size 12-Bit 1MSPS SAR ADC Performance Demonstration Kit (PDK)

The ADS7042 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the 12-bit, ADS7042 successive approximation register (SAR) analog-to-digital converter (ADC).

The PDK includes the ADS7042 evaluation board, precision host interface (PHI) controller board, and (...)

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIPD168 — Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor
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ADS7042EVM-PDK — ADS7042 Ultra-Low-Power Ultra-Small-Size 12-Bit 1MSPS SAR ADC Performance Demonstration Kit (PDK)

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TIPD168 — Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor
TI’s Standard Terms and Conditions for Evaluation Items apply.

Software

Support software

TIDC605 — TIPD168 Simulation

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIPD168 — Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor
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TIDC605 — TIPD168 Simulation

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Version: 01.00.00.00
Release date: Sep 7, 2014
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TIPD168 Simulation (zip)  — 85 K

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Reference design
TIPD168 — Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc605 or www.ti.com/lit/xx/tidc605/tidc605.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC605. Please update any bookmarks accordingly.

Technical documentation

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User guide Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power Jun 11, 2014

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