ADE7912

Data Sheet FEATURES Two (ADE7912) or three (ADE7913) isolated, Σ-Δ analog-todigital converters (simultaneously sampling ADCs) Integrated isoPower, isolated dc-to-dc converter On-chip temperature sensor 4-wire SPI serial interface Up to 4 ADE7912/ADE7913 devices clocked from a single crystal or an external clock Synchronization of multiple ADE7912/ADE7913 devices ±31.25 mV peak input range for current channel ±500 mV peak input range for voltage channels Reference drift: 10 ppm/°C typical Single 3.3 V supply 20-lead, wide-body SOIC package with 8.3 mm creepage Operating temperature: −40°C to +85°C Safety and regulatory approvals UL recognition 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A IEC 61010-1: 300 V rms VDE certificate of conformity DIN VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 846 V peak APPLICATIONS Shunt-based polyphase meters Power quality monitoring Solar inverters Process monitoring Protective devices Isolated sensor interfaces Industrial PLCs GENERAL DESCRIPTION The ADE7912/ADE79131 are isolated, 3-channel Σ-Δ ADCs for polyphase energy metering applications using shunt current sensors. Data and power isolation are based on the Analog Devices, Inc., iCoupler® technology. The ADE7912 features two ADCs, and the ADE7913 features three ADCs. The current ADC provides a 67 dB signal-to-noise ratio (SNR) over a 3 kHz signal bandwidth, whereas the voltage ADCs provide an SNR of 72 dB over the same bandwidth. One channel is dedicated to measur...