Description:

- The MCP4728 is an analogue DAC giving you four buffered output voltages controlled from an I2C serial interface. Each DAC can output a proportion of the input reference voltage. Since its a 12bit device its resolution is Vref/4096. So you can choose very fine steps dividing down from the reference.

- Each DAC output has an associated EEPROM memory so the device can power up immediately to a previously store output voltage.

- This chip automatically updates the EEPROM on write, and restores the outputs on reset. You dont really have to do anything to get this functionality other than program the DAC outputs the first time.

- You can use LDACn to update all outputs at the same time.

Output Voltage Range:

- Using Internal VREF (2.048V):

0.000V to 2.048V with Gain Setting = 1

0.000V to 4.096V with Gain Setting = 2

- Using External VREF (VDD):

0.000V to VDD

±0.2 Least Significant Bit (LSB) Differential Nonlinearity (DNL) (typical)

Fast Settling Time: 6 µs (typical)

Normal or Power-Down Mode

Low Power Consumption

Single-Supply Operation: 2.7V to 5.5V

I2C Interface: Address bits: User Programmable to EEPROM

Standard (100 kbps), Fast (400 kbps) and High Speed (HS) Mode (3.4 Mbps)

10-Lead MSOP Package

Extended Temperature Range: -40°C to +125°C

Applications:

Set Point or Offset Adjustment

Sensor Calibration

Closed-Loop Servo Control

Low Power Portable Instrumentation

PC Peripherals

Programmable Voltage and Current Source

Industrial Process Control

Instrumentation

Bias Voltage Adjustment for Power Amplifiers

Package Includes:

1 X MCP4728 12 Bit Digital to Analog Converter Breakout Sensor