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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 it's 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 don't 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