ADE7923

Data Sheet Isolated Energy Metering Chipset for Polyphase Shunt Meters ADE7978/ADE7933/ADE7932/ADE7923 FEATURES Flexible I2C, SPI, and HSDC serial interfaces Enables shunt current sensors in polyphase energy meters Immune to magnetic tampering Highly accurate; supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, IEC 62053-23, ANSI C12.20, and IEEE 1459 standards Compatible with 3-phase, 3- or 4-wire (delta or wye) meters and other 3-phase services Computes active, reactive, and apparent energy on each phase and on the overall system Less than 0.2% error in active and reactive energy over 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 maximum working voltage VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 846 V peak Optional isolated (ADE7933/ADE7932) or nonisolated (ADE7923) neutral a dynamic range of 2000 to 1 at TA = 25°C APPLICATIONS Less than 0.1% error in voltage rms over a dynamic range of 500 to 1 at TA = 25°C Less than 0.25% error in current rms over a dynamic range of 500 to 1 at TA = 25°C Power quality measurements including total harmonic distortion (THD) Single 3.3 V supply Operating temperature: −40°C to +85°C Shunt-based polyphase meters Power quality monitoring Solar inverters Process monitoring Protective devices Isolated sensor interfaces Industrial PLCs TYPICAL APPLICATION CIRCUIT PHASE PHASE PHASE NEUTRAL A B ...