MCP4922 E/P Microchip Microcontroller IC
The MCP4902/4912/4922 gadgets are twin 8-bit, 10-bit, and 12-bit buffered voltage output Digital-to-Analog Converters (DACs), respectively. The gadgets function from a single 2.7V to five.5V provide with SPI suitable Serial Peripheral Interface.
The consumer can configure the full-scale vary of the gadget to be VREF or 2 * VREF by setting the Acquire Choice Choice bit (acquire of 1 of two). The consumer can shut down each DAC channels through the use of SHDN pin or shut down the DAC channel individually by setting the Configuration register bits.
In Shutdown mode, many of the inside circuits within the shutdown channel are turned off for energy financial savings and the output amplifier is configured to current a recognized excessive resistance output load (500 ok typical The gadgets embody double-buffered registers, permitting synchronous updates of two DAC outputs, utilizing the LDAC pin.
These gadgets additionally incorporate a Energy-on Reset (POR) circuit to make sure dependable powerup. The gadgets make the most of a resistive string structure, with its inherent benefits of low DNL error and quick settling time. These gadgets are specified over the prolonged temperature vary (+125°C).
The gadgets present excessive accuracy and low noise efficiency for shopper and industrial purposes the place calibration or compensation of alerts (equivalent to temperature, strain and humidity) are required. The MCP4902/4912/4922 gadgets can be found within the PDIP, SOIC and TSSOP packages.
