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Adafruit 12-Bit DAC Interface

Adafruit 12-Bit DAC w/I2C Interface (MCP4725)

by Adafruit
SKU ADA-935
Sold out
£4.17 - £4.17
(ex:Vat)
£4.17
£4.17 - £4.17
£4.17
(ex:Vat)
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An easy to use 12-bit DAC, perfect for audio/analogue circuits.
  • works with 3.3V or 5V logic
  • control via I2C
  • for chips that have 3.4Mbps Fast Mode I2C (Arduino's don't) you can update the Vout at ~200 KHz
  • has an EEPROM so it can "store" an output voltage
Wiring it up is easy - connect VDD to your microcontroller power pin (3-5V), GND to ground, SDA to I2C Data (on the Arduino Uno, this is A4 on the Mega it is 20 and on the Leonardo digital 2), SCL to I2C Clock(on the Arduino Uno, this is A5 on the Mega it is 21 and on the Leonardo digital 3) and listen on VOUT.
Adafruit have also put together a handy library and tutorial and datasheet for this board.