The MCP39F521 is a highly integrated， complete single-phase power-monitoring device， designed for real-time measurement of input power for AC/DC power supplies， power distribution units， consumer and industrial applications. It includes dual-channel delta-sigma ADCs， a 16-bit calculation engine， EEPROM and a flexible two-wire I2C interface. An integrated low-drift voltage reference with 10 ppm/°C in addition to 94.5 dB of signal-to-noise and distortion ratio （SINAD） performance on each measurement channel allows for better than 0.1% accurate designs across a 4000:1 dynamic range.

　　The MCP39F521 is a highly integrated， single-phase power-monitoring IC designed for real-time measurement of input power for AC/DC power supplies， providing power and energy values. It includes dual-channel delta sigma ADCs， a 16-bit calculation engine， EEPROM and a flexible 2-wire interface. An integrated low-drift voltage reference in addition to the 94.5 dB of SINAD performance on each measurement channel allows for better than 0.1% accurate designs across a 4000:1 dynamic range.