Knowledge Base

The AB Electronics UK Knowledge Base provides support solutions, tutorials and troubleshooting guides.

Knowledge Base

ADC DAC Pi (Discontinued)

2 Channel ADC and 2 Channel DAC for the Raspberry Pi

ADC DAC Pi

This item has been replaced with the ADC DAC Pi Zero

The ADC-DAC Pi V1.0 is a 2-channel 12-bit analogue-to-digital converter and a 2-channel 12-bit digital-to-analogue converter designed to work with the Raspberry Pi. 

The ADC-DAC Pi is based on the Microchip MCP3202 A/D converter containing two analogue inputs with a 12-bit resolution with a Microchip MCP4822 dual channel 12-bit DAC with internal voltage reference.

Max ADC Sample Rate: 100,000 samples/sec

Max ADC Sample Rate under Python: 12,000 samples per second.

The ADC DAC Pi is compatible with all Raspberry Pi models.

Not sure which ADC you need? Check our Analogue to Digital Buyers guide to compare our ADC expansion boards.

Power to the board is provided through the host Raspberry Pi using the GPIO port. Only one ADC-DAC Pi can be used on a Raspberry Pi, but the extended pins on the GPIO connector allow you to stack the ADC-DAC Pi along with other expansion boards.

The A/D and D/A converters communicate with the Raspberry Pi through the SPI interface. 

The MCP3202 and MCP4822 datasheets can be found on the technical information tab.

Datasheets

MCP3202

MCP4822

Compatibility Chart

Model Compatible
Model A Yes
Model B Yes
Model A+ Yes
Model B+ Yes
Model 2B Yes
Model 3B Yes
Pi Zero Yes

Input Ratings & Specifications

Maximum voltage on ADC inputs: 3.3V

Schematic

Click to View schematic
View the schematic PDF.

Mechanical Drawings

Mechanical Drawing

Click the image to enlarge

Sample Code

Arduino, C, C++, Node JS, C#, Windows 10 IOT, and Python libraries are available for this expansion board. You can download all of the libraries from GitHub at:

https://github.com/abelectronicsuk/

Download the Arduino libraries from: https://github.com/abelectronicsuk/ABElectronics_Arduino_Libraries

To download the C libraries to your Raspberry Pi, type in the terminal:

git clone https://github.com/abelectronicsuk/ABElectronics_C_Libraries.git

To download the Python libraries to your Raspberry Pi, type in the terminal:

git clone https://github.com/abelectronicsuk/ABElectronics_Python_Libraries.git

Download the Windows 10 IOT libraries from: https://github.com/abelectronicsuk/ABElectronics_Win10IOT_Libraries/


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Created 23/11/2016 | Last Updated: 01/01/2024

Related Expansion Boards

Order a ADC-DAC Pi Zero Photo of ADC-DAC Pi Zero
ADC-DAC Pi Zero

2 Channel ADC and 2 Channel DAC for the Raspberry Pi

£14.99 Ex VAT: £12.49
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