ADE7878ACPZ-RL

The Analog Devices ADE7878ACPZ-RL is a polyphase multifunction energy metering IC designed for high-accuracy measurements in 3-phase systems. It supports 3- or 4-wire delta or wye configurations and provides total active, reactive, and apparent energy measurements on each phase and the overall system. The device boasts low error rates, with less than 0.1% error in active and reactive energy over a dynamic range of 1000:1 at 25°C, and less than 0.2% error over a dynamic range of 3000:1.

Key features include a wide supply voltage range of 2.4V to 3.7V and an operating temperature range of -40°C to 85°C. It supports current transformer and di/dt current sensors, with a dedicated ADC channel for neutral current input. The ADE7878ACPZ-RL is housed in a 40-lead LFCSP package, suitable for surface mounting.

This IC is ideal for energy metering systems requiring precise measurement of fundamental and harmonic components of active, reactive, and apparent energy. It incorporates flexible serial interfaces (I2C, SPI, HSDC) and offers system calibration features for each phase, including rms offset correction, phase calibration, and gain calibration.