Waveshare High-Precision AD/DA Expansion Sheild Board for Raspberry Pi Allows to Add High-Precision AD/DA Functions to Onboard ADS1256 DAC8532 Sensor Interface

• 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.
• Onboard ADS1256, 8ch 24bit high-precision ADC (4ch differential input), 30ksps sampling rate; Onboard DAC8532, 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

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. What's on Board Raspberry Pi GPIO interface : for connecting with the Pi AD/DA input/output : screw terminals AD input : pinheaders, the pinout is compatible with Waveshare sensor interface standard, easy to connect various analog sensor modules 7.68M crystal LM285-2.5 : provides reference voltage for the ADC chip Photo resistor LED output indicator 10K potentiometer DAC8532 : 16bit high-precision DAC, 2ch Power indicator ADS1256 : 24bit high-precision ADC, 8ch (4ch differential input) ADC testing jumper DAC testing jumper Power selection jumper ADC reference ground configuration : when AD single inputted, the AINCOM is reference terminal, can be connected to GND or external reference voltage PACKAGE CONTENT High-Precision AD/DA Board x 1 RPi screws pack (2pcs) x 1 WIKI:https://www.waveshare.com/wiki/High-Precision_AD/DA_Board