EVM Overview
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1
EVM Overview
1.1
Features
ADS1259EVM:
•
Contains all support circuitry needed for the ADS1259
•
PGA280 can be evaluated as a buffer and integrated control
•
Voltage reference options: external or onboard
•
Clock options: External clock source or 7.3728MHz onboard crystal oscillator
•
Compatible with the TI Modular EVM System
ADS1259EVM and ADS1259EVM-PDK Features:
•
Easy-to-use evaluation software for Microsoft
®
Windows
®
XP
•
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 ADS1259EVM-PDK is available. This kit combines the ADS1259EVM board
with the DSP-based MMB0 motherboard, and includes ADCPro™ software for evaluation.
The MMB0 motherboard allows the ADS1259EVM to be connected to the computer via an available USB
port. This manual shows how to use the MMB0 as part of the ADS1259EVM-PDK, but does not provide
technical details about the MMB0 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 ADS1259EVM-PDK is controlled by a plug-in running in ADCPro. For more information
about ADCPro, see the
ADCPro™ Analog-to-Digital Converter Evaluation Software User's Guide
(
), available for download from the
This manual covers the operation of both the ADS1259EVM and the ADS1259EVM-PDK. Throughout this
document, the abbreviation EVM and the term evaluation module are synonymous with the
ADS1259EVM.
1.2
Introduction
The ADS1259EVM is an evaluation module built to the TI Modular EVM System specification. It can be
connected to any modular EVM system interface card.
The ADS1259EVM is available as a standalone printed circuit board (PCB) or as part of the
ADS1259EVM-PDK, which includes an MMB0 motherboard and software. As a standalone PCB, the
ADS1259EVM is useful for prototyping designs and firmware.
Note that the ADS1259EVM has no microprocessor and cannot run software. To connect it to a computer,
some type of interface is required.
2
Analog Interface
For maximum flexibility, the ADS1259EVM is designed for easy interfacing to multiple analog sources.
Samtec part numbers SSW-110-22-F-D–VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin,
dual-row, header/socket combination at J8. This header/socket provides access to the analog input pins of
the ADS1259 and the PGA280. Consult Samtec at
or call 1-800-SAMTEC-9 for a
variety of mating connector options.
The input pins on the ADS1259EVM do not connect directly to the part, but connect to the inputs of the
ADS1259 through switch S2 and modest filtering. Along with the analog header, these analog inputs can
be easily accessed through test loops TP7 and TP8. Analog input pins INN1 and INP1 of the PGA280 can
also be accessed through test loops TP13 and TP14 (INP2 and INN2 can only be accessed through the
analog header). For all analog inputs, it is important that appropriate caution is taken when handling the
pins.
4
ADS1259EVM, ADS1259EVM-PDK
SBAU163A – March 2010 – Revised April 2010
Copyright © 2010, Texas Instruments Incorporated
