Cirrus Logic Inc. CS5462-ISZ

Description
The CS5462 is a low-cost power meter solution that combines two AΣ analog-to-digital converters (ADCs), an energy-to-frequency converter, and energy pulse outputs on a single chip. It is designed to accurately measure and calculate energy for single-phase 2- or 3-wire power metering applications with minimal external components.

Features
Single-chip power measurement solution
Energy data linearity: ±0.1% of reading over 1000:1 dynamic range
On-chip functions: measures energy and performs energy-to-pulse conversions
Meets accuracy spec for IEC 687/1036
On-chip system calibration option
High-pass filter option for both I and V2
Available current input ranges
On-chip 2.5 V reference (25 ppm/°C typ)
Pulse outputs for stepper motor or mechanical counter
On-chip energy direction indicator
Ground reference input signals with single supply
High-frequency output for calibration
On-chip power-on reset
Power supply configurations: VA = 5 V; AGND =0 V; VD = 3.3V to 5V

Applications
Single-phase 2- or 3-wire power metering
Energy monitoring
Load control
Power factor correction