Digital to analog conversion (D/A) is often performed by the microcontroller in practice. These chips accepts digital value by SPI and output analog voltage. It can also generate an analog voltage in a 12-bit resolution on its output pin.
For Datasheet and other details visit Microchip part# MCP4921-E/P
Applications
The device provides very high accuracy and low noise performance and is suitable for consumer and industrial applications, such as set point control, offset adjustment, and sensor calibration applications.
Features 12-bit Resolution Single Channel Voltage Output 2.7V to 5.5V Operation Operating Current 175µA (typ) Output Settling Time 4.5 µs SPI Interface Temperature Range -40°C to +125°C
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