ADE7913ARIZ

The ADE7913ARIZ is a 24-bit, 3-channel isolated sigma-delta analog-to-digital converter (ADC) from Analog Devices, designed for polyphase energy metering and power quality monitoring. It integrates three simultaneously sampling ADCs, an on-chip temperature sensor, and an isolated isoPower DC-DC converter, all in a single 20-lead wide-body SOIC package with 8.3 mm creepage.

Key specifications include a single 3.3 V supply, SPI serial interface, ±31.25 mV peak input range for the current channel, and ±500 mV peak input range for the voltage channels. The device achieves a typical SNR of 67 dB on the current channel and 72 dB on the voltage channels at 3 kHz bandwidth, with a reference drift of 10 ppm/°C. It provides 5000 V rms isolation for 1 minute per UL 1577, and is rated for operation from -40°C to +85°C.

This ADC is suitable for shunt-based polyphase meters, solar inverters, process monitoring, protective devices, isolated sensor interfaces, and industrial PLCs. Multiple ADE7913 devices can be synchronized from a single crystal or external clock, enabling scalable multi-phase measurement systems. The surface-mount wide-body SOIC package with gull-wing leads facilitates reliable PCB assembly.