CS5460A-BSZ 24-Bit Energy Metering IC – Delta-Sigma ADC – SSOP-24 – Cirrus Logic

The CS5460A-BSZ from Cirrus Logic is a highly integrated 24-bit Delta-Sigma ADC–based power and energy metering IC designed for accurate, single-phase, bi-directional energy measurement. Packaged in a compact SSOP-24, it provides exceptional precision and on-chip computational capabilities, making it ideal for smart meters, power monitoring equipment, and embedded energy measurement systems.

Featuring a 3-wire SPI-compatible serial interface, the CS5460A-BSZ directly computes real (true) energy, instantaneous power (I × V), RMS current (IRMS), and RMS voltage (VRMS), eliminating the need for complex external processing. It delivers ±0.1% energy linearity over a 1000:1 dynamic range, ensuring highly accurate readings even under varying load conditions.

Optimized for use with shunt sensors in AC or DC measurement environments, the IC includes powerful functions such as auto-boot mode, allowing standalone operation by loading configuration data directly from external EEPROM—no microcontroller required.

With low power consumption (typically < 12 mW) and dual-supply operation (analog 5V, digital 3.3V–5V), the CS5460A-BSZ is a robust solution for modern energy monitoring and metering applications.

Key Specifications:

• Manufacturer: Cirrus Logic

• Part Number: CS5460A-BSZ

• Package: SSOP-24

• Resolution: 24-bit Delta-Sigma ADC

• Interface: 3-wire SPI-compatible

• Measurement Functions:
  – Real energy
  – Instantaneous power (I × V)
  – IRMS / VRMS

• Accuracy: ±0.1% energy linearity (1000:1 dynamic range)

• Power Consumption: < 12 mW typical

• Supply Voltages:
  – VA+: 5V
  – VD+: 3.3V to 5V

• Optimized for shunt sensor measurements

• Auto-boot mode from external EEPROM for MCU-less operation

Package Includes:
1 x CS5460A-BSZ 24-Bit Power/Energy Metering IC

Note: Image is for representation purpose only.