Description

The CS5460A is a highly integrated power measurement solution which combines two ∆Σ Analog-to-digital Converters (ADCs), high-speed power calculation functions, and a serial interface on a single chip. It is designed to accurately measure and calculate: Real (True) Energy, Instantaneous Power, IRMS, and VRMS for single phase 2- or 3-wire power metering applications. The CS5460A interfaces to a low-cost shunt resistor or transformer to measure current, and to a resistive divider or potential transformer to measure voltage.

Features

● Energy Data Linearity: ±0.1 of Reading over 1000:1 Dynamic Range.

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

● Smart “Auto-boot” Mode from Serial EEPROM Enables Use without MCU.

● AC or DC System Calibration

● Mechanical Counter/Stepper Motor Driver

● Meets Accuracy Spec for IEC 687/1036, JIS

● Typical Power Consumption <12 mW

● Interface Optimized for Shunt Sensor

● V vs. I Phase Compensation

● Ground-Referenced Signals with Single Supply

● On-chip 2.5 V Reference (MAX 60 ppm/°C drift)

● Simple Three-wire Digital Serial Interface

● Watch Dog Timer

● Power Supply Monitor

● Power Supply Configurations VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V