Raspberry Pi High-Precision AD/DA Expansion Board
  • Raspberry Pi High-Precision AD/DA Expansion Board
  • Raspberry Pi High-Precision AD/DA Expansion Board
  • Raspberry Pi High-Precision AD/DA Expansion Board
  • Raspberry Pi High-Precision AD/DA Expansion Board
  • Raspberry Pi High-Precision AD/DA Expansion Board

Raspberry Pi High-Precision AD/DA Expansion Board

:PCO01046
€57.80
Tax included

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.

Quantity

If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.

 

Supported Pi

  • Raspberry Pi 1 Model A+
  • Raspberry Pi 1 Model B+
  • Raspberry Pi 2 Model B

 

Features

  • 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

 

What's on Board

RPi expansion board on board resource

  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

 

Interface Definition

Pin

Symbol

Description

1, 17

3.3V

Power supply (3.3V)

2, 4

5V

Power supply (5V)

3, 5, 7, 8, 10, 18, 22, 24, 26, 27, 28, 29, 32, 36, 38, 40

NC

NC

6, 9, 14, 20, 25, 30, 34, 39

GND

Ground

11

DRDY

ADS1256 data ready output, low active

12

RESET

ADS1256 reset input

13

PDWN

ADS1256 sync/power off input, low active

15

CS0

ADS1256 chip select, low active

16

CS1

DAC8532 chip select, low active

19

DIN

SPI data input

21

DOUT

SPI data output

23

SCK

SPI clock

31, 33, 35, 37

GPIO

extend to sensor interface

 

Dimension

High-Precision AD/DA Board dimension

Development Resources

Wiki : www.waveshare.com/wiki/High-Precision_AD/DA_Board

PCO01046

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