Description

The CS5461 is an integrated power measurement device which combines two ∆Σ ADCs, high speed power calculation functions, and a serial interface on a single chip. It is designed to accurately measure Instantaneous Current and Voltage, and calculate: Instantaneous Power, Average Power, IRMS, and VRMS, for single-phase 2- or 3-wire power metering applications.

Features

Energy Data Linearity:±0.1% of Reading

over 1000:1 Dynamic Range

On-Chip Functions: Energy, I∗V, IRMS and VRMS, Energy-to-Pulse Conversion

AC/DC System Calibrations

Meets Accuracy Spec for IEC 687/1036, JIS

Power Consumption <12 mW

On-Chip Temperature Sensor

Voltage Sag Detect

Adjustable Input Range on Current Channel

Phase Compensation

GND-Referenced Signals with Single Supply

On-chip 2.5 V Reference (25 ppm/°C typ)

Simple Three-Wire Digital Serial Interface

Power Supply Monitor

Interface Optimized for Shunt Sensor

Mechanical Counter/Stepper Motor Drive

Smart “Auto-Boot” Mode from Serial EEPROM with no microcontroller.

Power Supply Configurations

  VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V