CS5480SG-INZ

The CS5480SG-INZ from Cirrus Logic Inc. is a high-performance analog front-end solution designed for energy measurement applications. Part of the CS548x/9x family, this IC provides three independent 24-bit analog-to-digital converters for voltage and current measurements.

It offers superior analog performance with ultra-low noise and high SNR, achieving an energy measurement accuracy of 0.1% over a 4000:1 dynamic range. The device supports multiple current sensor options including shunt resistors, CTs, and Rogowski coils, as well as resistor divider or transformer voltage sensors. Key on-chip calculations include active, reactive, and apparent power, RMS voltage and current, power factor, and line frequency.

Designed for flexibility, the CS5480SG-INZ includes configurable digital outputs for energy pulses or zero crossing detection, and supports UART/SPI serial interfaces. It operates from a single 3.3V power supply with low power consumption of less than 13mW. The IC is housed in a compact 4mm x 4mm 24-pin QFN package, making it suitable for space-constrained designs.

This IC is ideal for applications requiring high-accuracy energy measurement at a low cost, speeding up product development cycles through on-chip energy calculations and fast calibration. It also features overcurrent, voltage sag, and voltage swell detection capabilities.