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EVM Overview
3
SBAU293 – March 2018
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Copyright © 2018, Texas Instruments Incorporated
ADS1261 and ADS1235 Evaluation Module
ADVANCE INFORMATION
1
EVM Overview
1.1
Description
This user guide describes the operation and use of the ADS1261 and ADS1235 evaluation module. The
EVM platform is intended for evaluating the ADS1261 or ADS1235 performance and functionality.
1.2
Requirements
1.2.1
Software Requirements
PC with Microsoft
®
Windows
®
7 or higher operating system.
1.2.2
Hardware Requirements
PC with available USB 2.0 or greater connection.
1.2.2.1
Power Supply
USB powered.
1.3
Software Reference
For the core software documentation, see the
Delta-Sigma ADC EvaluaTIon Software User Manual
or
navigate to the
File -> About
option from within the GUI, then click on the
Software user guide
icon.
1.4
Supported Functionality
1.4.1
Hardware Functionality
The EVM features the following hardware capabilities:
•
5-V unipolar or bipolar AVDD and AVSS supply operation
•
Unipolar (5 V) and bipolar (±2.5 V) AVDD and AVSS supply operation
•
3.3-V DVDD
•
Digital header for external processor or controller configuration
•
Configurable for direct sensor inputs
•
Onboard or external ADC clock operation
•
Onboard (not installed) or external ADC voltage reference
•
Fault LED for STATUS or CRC error notification
1.4.2
Software Functionality
The EVM features the following software functions:
•
Device conversion control
•
Device software reset
•
Device power down
•
Register read and write
•
Conversion result readback
•
Self offset and system input calibration
•
Error detection through device status information
•
CRC of data and SPI communication (for error prevention or detection of data transmission)
