Waveshare High-Precision AD/DA Board User Manual

High-Precision AD-DA User Manual
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Revision: 1.2. Date: October 30 2015. Author: Zhou Jie. Editor: Felix
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What's on Board
1. Raspberry Pi GPIO interface: for connecting with the Pi
2. AD/DA input/output: screw terminals
3. AD input: pinheaders, the pinout is compatible with Waveshare sensor interface standard, easy
to connect various analog sensor modules
4. 7.68M crystal
5. LM285-2.5: provides reference voltage for the ADC chip
6. Photo resistor
7. LED output indicator
8. 10K potentiometer
9. DAC8532: 16bit high-precision DAC, 2ch
10. Power indicator
11. ADS1256: 24bit high-precision ADC, 8ch (4ch differential input)
12. ADC testing jumper
13. DAC testing jumper
14. Power selection jumper
15. ADC reference ground configuration: when AD single inputted, the AINCOM is reference
terminal, can be connected to GND or external reference voltage

Waveshare High-Precision AD/DA Board Specifications

General

Brand	Waveshare
Model	High-Precision AD/DA Board
Category	Computer Hardware
Language	English