The ADE7903 is a nonisolated, 3-channel, Σ-Δ analog-to-digital converter (ADC) for the neutral line of polyphase energy metering applications using shunt current sensors. The ADE7903 can also be used for single-phase energy metering and other standalone ADC applications.
It has a standalone 24-bit, Σ-Δ ADC and up to four ADE7903 and ADE7912/ADE7913 devices clocked from a single crystal or an external clock. The device has synchronization of multiple ADE7903 and ADE7912/ADE7913 devices.
The device has a ±31.25 mV peak input range for current channel and ±500 mV peak input range for voltage channels. It has a single 3.3 V supply and is available in a 20-lead, wide body SOIC package.
