MCP4725 DAC converter 12bit I2C with EEPROM

Product detailed description

The MCP4725 DAC converter converts a digital value from a microcontroller into a true analogue voltage with 12-bit resolution (4096 levels). It is ideal wherever your board lacks its own D/A converter or you require a clean DC voltage instead of PWM – for example, for controlling regulators and drivers with an analogue input of 0–5 V, setting reference voltages, generating simple waveforms, or testing A/D converters. It is controlled via the I2C bus, utilizing only two wires, and thanks to the built-in EEPROM memory, it can remember the output voltage even after power-off. The output is rail-to-rail, meaning the range corresponds to the supply voltage from 0 V to VCC.

Specifications:

• Chip: Microchip MCP4725 (1-channel 12-bit D/A converter with EEPROM)
• Module designation: HW-315
• Resolution: 12 bits (4096 steps), approx. 1.22 mV per step at 5 V supply
• Supply voltage: 2.7–5.5 V DC
• Output:
  • Range: 0 V to VCC (rail-to-rail, reference is the supply voltage)
  • Settling time: typ. 6 µs
  • Load: min. 5 kΩ recommended; use an amplifier or driver for higher current or voltage
• Accuracy:
  • INL: typ. ±2 LSB
  • DNL: typ. ±0.2 LSB
• Current consumption: typ. 0.2 mA, approx. 0.06 µA in power-down mode
• Communication:
  • Interface: I2C, 100 kHz / 400 kHz / 3.4 MHz
  • Address: 0x60, can be changed to 0x61 via the ADDR jumper (2 modules on one bus)
  • Pull-up resistors: 4.7 kΩ on SDA and SCL, disconnectable via the I2C PULLUPS jumper on the bottom side
• EEPROM: storage of output value and mode; upon power-up, the output is set to the stored value
• Pins: 6× for 2.54 mm pin header – OUT, GND, SCL, SDA, VCC, GND
• Mounting: 2 mounting holes
• Operating temperature: −40 °C to +125 °C (chip)
• Compatibility: Arduino, ESP32, ESP8266, STM32, Raspberry Pi and other I2C boards; recommended Adafruit MCP4725 library

Package contents:

• 1× MCP4725 DAC converter module
• 1× 6-pin pin header (unsoldered)

Note:

• The output can only be set within the range of 0 V to the module supply voltage – if you require a full 0–5 V, power the module with 5 V.
• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.