下载
User's Guide
SBAU120B–November 2005– Revised July 2011
ADS1232REF User's Guide
The ADS1232REF is a reference design for the ADS1232 24-bit, delta-sigma analog-to-digital converter
(ADC). It contains all the circuitry and user interface elements needed for a weigh-scale digitizer, and is
meant as an example of good design for a basic weigh-scale system. The ADS1232REF is also suitable
for general evaluation of the ADS1232 device. Additionally, performance results obtained with the
ADS1232REF are applicable to the ADS1234, a device with identical performance.
The ADS1232REF hardware has the following features:
• ADS1232 ADC
• Connections for load cells or other voltage sources
• Low-side excitation switch on the load cell header connector
• Ample EMI/RFI suppression between the ADC and rest of design
• Eight-digit starburst LCD readout
• USB connection for firmware updates and remote control
• Designed for very low power consumption
• Battery (9V) or wall power
Version 1.1.0 of the firmware includes the following features:
• Weigh-scale mode with two-point calibration
• Complete configuration of the device
• Real-time peak-to-peak and RMS noise calculation
• Autoranging voltage display
• Noise displayed in volts, codes, and bits
• Voltage displayed in volts or codes
• Adjustable averaging mode
• Raw hexadecimal code display
• Simple and fast configuration
• Parameters saved to internal flash memory
• Computer link
Graphical PC software is also provided for histogram display, datalogging, and device control.
We welcome bug reports and suggestions for additional features; please contact the Texas Instruments
Precision Analog Applications Group.
Hyperterm is a trademark of Microsoft Corporation.
Windows is a registered trademark of Microsoft Corporation.
All other trademarks are the property of their respective owners.
1
SBAU120B–November 2005–Revised July 2011 ADS1232REF User's Guide
Submit Documentation Feedback
Copyright © 2005–2011, Texas Instruments Incorporated
