2 Channel ADC and 2 Channel DAC for the Raspberry Pi

£14.99 each (excluding VAT: £12.49)
230 available
EAN: 7426787870088
Add a 40 Pin Single Row Header
for only £0.99 each ex vat
Order Connector suitable for the Raspberry Pi Zero
Add a Mounting Kit Four Pack
for only £3.49 each ex vat
Order Mounting kit to use on our Raspberry Pi boards

The ADC DAC Pi Zero 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 and other compatible single-board computers.   Designed for the same footprint as the Raspberry Pi Zero, the ADC DAC Pi Zero is also compatible with full-size Raspberry Pi models.

The ADC DAC Pi Zero is based on the Microchip MCP3202 A/D converter containing 2 analogue inputs with a 12-bit resolution and a Microchip MCP4822 dual channel 12-bit DAC with internal voltage reference.

Power to the board is provided through the host Raspberry Pi using the GPIO port. Only one ADC DAC Pi Zero can be used on a Raspberry Pi, but the extended pins on the GPIO connector allow you to stack the ADC DAC Pi Zero along with other expansion boards. Using our mounting kit, you can securely fit the board on your Raspberry Pi. As the ADC DAC Pi Zero uses the same footprint as the Raspberry Pi Zero, only two mounting holes can be used on the larger Raspberry Pi models.

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

Max ADC Sample Rate using Python library on a Pi 4: 11,000 samples per second.

Max ADC Sample Rate using C library on a Pi 4: 17,500 samples per second.

Max ADC Sample Rate using C++ library on a Pi 4: 17,500 samples per second.

Max ADC Sample Rate (based on MCP3202 datasheet): 50,000 SPS at 2.7V. 100,000 sps at 5V. ADC-DAC Pi operates at 3.3V on Raspberry Pi.

The ADC DAC Pi Zero is compatible with all Raspberry Pi models from the A+ and B+ onwards.

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

Technical Details

Input Ratings & Specifications

ADC Input Voltage
0V to 3.3V
Maximum ADC Input voltage
VSS–0.6V to VDD+0.6 V
DAC Output Voltage
Gain = 1: 0V to 2.048V
Gain = 2: 0V to VDD
Maximum DAC Output Current
SPI voltage
3.3 V

3D CAD Model

Click to downloadADC DAC Pi Zero - 3D CAD File (STEP Format)


Click to View
View the schematic PDF.

Mechanical Drawings

Click the image to enlarge.


We have tested the ADC DAC Pi Zero on the following platforms.

Model Status
Raspberry Pi Pico series
Raspberry Pi Model A / B
Raspberry Pi 1 Model A+ / B+
Raspberry Pi 2 Model B
Raspberry Pi 3 Model A+ / B / B+
Raspberry Pi 4 Model B
Raspberry Pi 5
Raspberry Pi Zero
Raspberry Pi Zero W / Zero 2 W
Raspberry Pi Compute Module 4 IO Board
Raspberry Pi 400
Asus Tinker Board

Code Libraries and Demos

We have Python, MicroPython, C, C++, Node.js and Windows 10 IOT libraries for this expansion board.  You can download all of the libraries from GitHub at: or click on the logos below for your selected programming language.

Assembly Instructions

The ADC DAC Pi Zero is supplied with the 40-pin GPIO connector unsoldered. We provide the ADC DAC Pi Zero this way because the Raspberry Pi Zero is also supplied without a GPIO header. The ADC DAC Pi Zero can be fitted above or below the Raspberry Pi Zero.

Before using the ADC DAC Pi Zero, you need to solder the connector onto the PCB.

PCB Header Assembly Jig

Download and print our PCB Header Assembly Jig to hold your circuit board when soldering the header pins.



£14.99 each (excluding VAT: £12.49)

You may also like

Important Information

This development board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by to be a finished end-product fit for general consumer use. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. Persons handling the product(s) must have electronics training and observe good engineering practice standards. This development board/kit does not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives. Note: documents in Portable Document Format (PDF) require Adobe Acrobat Reader 5.0 or higher to view, download Adobe Acrobat Reader or other PDF reading software for your computer or mobile device.