Raspberry Pi 3B +/4B High Precision AD/DA Digital/Analog Module Expansion Board DAC8532 ADS1256 -79255

Note: without bottom board

Overview:

There's no AD/DA function on the Raspberry Pi GPIO interface, this may trouble you in the Pi development. However, it won't be a problem anymore. The High-Precision AD/DA Board allows you to add high-precision AD/DA functions to the Raspberry Pi.

Features:

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano

Onboard ADS1256, 8ch 24bit high-precision ADC (4ch differential input), 30ksps sampling rate

Onboard DAC8552, 2ch 16bit high-precision DAC

Onboard input interface via pinheaders, for connecting analog signal

the pinout is compatible with Waveshare sensor interface standard, easy to connect various analog sensor modules

Onboard input/output interface via screw terminals, for connecting analog/digital signal

Features AD/DA detect circuit, easy for signal demonstration

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. DAC8552 :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

Interface Definition: