TIDUF45
May 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.3
Highlighted Products
2.3.1
ADS127L21
2.3.2
PGA855
2.3.3
REF70
3
System Design Theory
4
Hardware, Software, Testing Requirements, and Test Results
4.1
Hardware Description
4.1.1
Board Interface
4.1.2
Power Supplies
4.1.3
Clocking Tree
4.2
Software Requirements
4.3
Test Setup
4.4
Test Results
4.4.1
DC Accuracy Tests
4.4.2
Gain and Offset Temperature Drift
4.4.3
Nonlinearity
4.4.4
SNR and Noise Performance
5
Design and Documentation Support
5.1
Design Files
5.1.1
Schematics
5.1.2
BOM
5.2
Software
5.3
Documentation Support
5.4
Support Resources
5.5
Trademarks
6
About the Author
5.3
Documentation Support
Texas Instruments,
ADS127L21 512-kSPS, Programmable Filter, 24-Bit, Wideband Delta-Sigma ADC
data sheet
Texas Instruments,
PGA855 Low-Noise, Wide-Bandwidth, Fully Differential Output Programmable-Gain Instrumentation Amplifier
data sheet
Texas Instruments,
ADS127L21EVM-PDK Evaluation Module
user's guide