Energy Measurement IC CS5460A

All Power Measurement parts have Data Linearity of 0.1% over a 1000:1 Range.

The "Auto-Boot" feature allows the CS5460A to function standalone and to initialize itself on system power-up. In Auto-Boot mode, the CS5460A reads the calibration data and start-up instructions from an external EEPROM. In this mode, the CS5460A can work without the need for a microprocessor for low-cost metering applications.

The CS5460A is a highly integrated Delta-Sigma analog-to-digital (A/D) converter that combines two Delta-Sigma A/D converters, high-speed power calculation functions and a serial interface on a single chip. It is designed to accurately measure and calculate energy, instantaneous power, I_RMS and V_RMS 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 resistive divider or potential transformer to measure voltage. The CS5460A features a bi-directional serial interface for communication with a microcontroller and a programmable frequency output that is proportional to energy. The CS5460A has on-chip functionality to facilitate AC or DC system-level calibration.

Single-Phase, Bi-Directional Power/Energy IC