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EVM Overview

1.1

Features

1.2

Introduction

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EVM Overview

ADS1146EVM/ADS1246EVM Features:

• Contains all support circuitry needed for the ADS1146/ADS1246

• ±2.5V and +5V power supply options for ADC

• Voltage reference options: external or onboard

• Compatible with the TI Modular EVM System

ADS1146EVM-PDK/ADS1246EVM-PDK Features:

• Data collection to text files

• Built-in analysis tools including scope, FFT, and histogram displays

• Complete control of board settings

• Easily expandable with new analysis plug-in tools from Texas Instruments

For use with a computer, the ADS1146EVM-PDK or ADS1246EVM-PDK is available. This kit combines

the ADS1146/ADS1246EVM board with the MSP430-based MMB3 motherboard, and includes ADCPro™

software for evaluation.

The MMB3 motherboard allows the ADS1146/ADS1246EVM to be connected to the computer via an

available USB port. This manual shows how to use the MMB3 as part of the

ADS1146EVM-PDK/ADS1246EVM-PDK, but does not provide technical details about the MMB3 itself.

ADCPro is a program for collecting, recording, and analyzing data from ADC evaluation boards. It is based

on a number of plug-in programs, so it can be expanded easily with new test and data collection plug-ins.

The ADS1146EVM-PDK/ADS1246EVM-PDK is controlled by a plug-in running in ADCPro. For more

information about ADCPro, see the ADCPro™ Analog-to-Digital Converter Evalutation Software User's

Guide (literature number SBAU128), available for download from the TI web site.

This manual covers the operation of both the ADS1146/ADS1246EVM and the

ADS1146EVM-PDK/ADS1246EVM-PDK. Throughout this document, the abbreviation EVM and the term

evaluation module are synonymous with the ADS1146/ADS1246EVM. For clarity of reading, the rest of

this manual will refer only to the ADS1246EVM or ADS1246EVM-PDK, but operation of the EVM and kit

for the ADS1146 is identical, unless otherwise noted.

The ADS1246EVM is an evaluation module built to the TI Modular EVM System specification. It can be

connected to any modular EVM system interface card.

The ADS1246EVM is available as a stand-alone printed circuit board (PCB) or as part of the

ADS1246EVM-PDK, which includes an MMB3 motherboard and software. As a stand-alone PCB, the

ADS1246EVM is useful for prototyping designs and firmware.

Note that the ADS1246EVM has no microprocessor and cannot run software. To connect it to a computer,

some type of interface is required.

SBAU149A – June 2009 – Revised July 2009

ADS1146EVM, ADS1246EVM, ADS1146EVM-PDK, ADS1246EVM-PDK

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