CS5480-INZ

Overview

The CS5480-INZ is a three-channel energy management analog front-end (AFE) designed for high-precision power monitoring. It integrates three independent 24-bit, fourth-order delta-sigma modulators to measure voltage and current signals simultaneously. The device achieves an energy measurement accuracy of 0.1% over a 4000:1 dynamic range and a current RMS measurement accuracy of 0.1% over a 1000:1 dynamic range. Operating on a 3V to 3.6V supply with a typical quiescent current of 3.9mA, it features configurable digital outputs for energy pulses, zero-crossing detection, or energy direction indication within a QFN-24 package.

Feature Summary

• Integrates three independent 24-bit, fourth-order delta-sigma modulators for simultaneous voltage and current measurements
• Delivers superior analog performance characterized by ultra-low noise levels and high signal-to-noise ratio
• Provides configurable digital outputs capable of generating energy pulses, zero-crossing signals, or energy direction indicators

Applications

• Three-phase energy metering systems
• High-accuracy power quality analysis equipment
• Smart grid monitoring infrastructure

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging configuration. The INZ suffix typically denotes tray packaging, while other variants may utilize reels. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into surface-mount assembly processes.

Selection Notes

Select this component when precise multi-channel energy measurement is required without external multiplexing. The integrated delta-sigma architecture simplifies design by reducing external analog filtering needs. Ensure the application operates within the specified 3V to 3.6V supply range and requires the thermal characteristics of the QFN-24 package.

Part Context

This part belongs to the Cirrus Logic CS5480 series of energy measurement ICs. It serves as a specialized analog front-end solution distinct from general-purpose ADCs, focusing specifically on the rigorous demands of utility-grade power monitoring applications requiring high linearity and wide dynamic range.

Replacement Considerations

Consult manufacturer documentation for direct pin-compatible alternatives within the same family. Verify that any substitute maintains the required 24-bit resolution and fourteenth-order modulation characteristics for equivalent noise performance.