MCP4725 DAC Module
12-bit single-channel I2C DAC breakout with onboard EEPROM for storing the wiper setting across power cycles. Outputs 0V to VCC; I2C address 0x60 or 0x61 via ADDR pin. Compatible with 3.3V and 5V systems.
Pinout
- VCC
3.3V supply input
Type · PowerVoltage · 3.3 - GND
Ground reference
Type · Ground - SDA
I2C data line — connect to ESP32-S3 SDA (shared I2C bus)
Type · I2C - SCL
I2C clock line — connect to ESP32-S3 SCL (shared I2C bus)
Type · I2C - OUT
Analog voltage output 0–VCC (0–3.3V); feed to op-amp scaling stage for 0–10V range
Type · Analog - ADDR
I2C address select pin; tie to GND for 0x60, tie to VCC for 0x61
Type · GPIO
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VCC | Power | 3.3V supply input | 3.3 |
| GND | Ground | Ground reference | |
| SDA | I2C | I2C data line — connect to ESP32-S3 SDA (shared I2C bus) | |
| SCL | I2C | I2C clock line — connect to ESP32-S3 SCL (shared I2C bus) | |
| OUT | Analog | Analog voltage output 0–VCC (0–3.3V); feed to op-amp scaling stage for 0–10V range | |
| ADDR | GPIO | I2C address select pin; tie to GND for 0x60, tie to VCC for 0x61 |
Pin details
6 connections- VCC
3.3V supply input
PowerVoltage · 3.3 - GND
Ground reference
Ground - SDA
I2C data line — connect to ESP32-S3 SDA (shared I2C bus)
I2C - SCL
I2C clock line — connect to ESP32-S3 SCL (shared I2C bus)
I2C - OUT
Analog voltage output 0–VCC (0–3.3V); feed to op-amp scaling stage for 0–10V range
Analog - ADDR
I2C address select pin; tie to GND for 0x60, tie to VCC for 0x61
GPIO
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