Power monitoring ic offers 0.1% error rate
The MCP39F501 from Microchip is a power monitoring ic designed to give real time measurement of ac power.
The single phase device includes two 24bit delta-sigma a/d converters, a 16bit calculation engine, EEPROM and a flexible two-wire interface.
An integrated low drift voltage reference in addition to 94.5dB of SINAD performance on each measurement channel allows accurate designs with 0.1% error across a 4000:1 dynamic range.
Target applications include commercial server and networking power supplies, power distribution units and lighting systems, consumer products such as appliances and smart plugs, and industrial products such as power meters and industrial equipment.