71M6521DE - Maxim Integrated

71M6521DE Energy Meter

The Teridian™ 71M6521DE/DH/FE energy meter ICs are highly integrated systems-on-a-chip (SoCs) with an MPU core, RTC, flash, and LCD driver. The Single Converter Technology® with a 22-bit delta-sigma ADC, four analog inputs, digital temperature compensation, precision voltage reference, battery voltage monitor, and 32-bit computation engine (CE) supports a wi.

Features

• Up to 0.1% Wh Accuracy Over 2000:1 Current Range
• Exceeds IEC 62053/ANSI C 12.20 Standards
• Voltage Reference < 40 ppm/°C (< 20ppm/°C for 71M6521DH)
• Four Sensor Inputs—VDD Referenced
• Low-Jitter Wh and VARh Pulse Test Outputs (10kHz max)
• Pulse Count for Pulse Outputs
• Four-Quadrant Metering
• Tamper Detection Neutral Current with CT or Shunt
• Line Frequency Count for RTC
• Digital Temperature Compensation
• Sag Detection for Phase A and B
• Independent 32-Bit Compute Engine
• 46-64Hz Line Frequency Range with Same Calibration
• Phase Compensation (±7°)
• Battery backup for RTC and b.