ADE9078ACPZ-RL

Overview

The ADE9078ACPZ-RL is a high-performance polyphase metering analog front-end (AFE) from Analog Devices, designed for Class 1 to Class 0.2 energy meters. It integrates seven high-performance ADCs with a flexible DSP core and an internal voltage reference exhibiting ±25 ppm/°C drift. The device supports current transformers (CTs) and Rogowski coils, offering 101 dB SNR and a 10,000:1 dynamic range. Key specifications include a 10 MHz SPI interface, differential inputs with PGA gains of 1, 2, or 4 V/V, and operation within a 2.7 V to 3.63 V supply range across -40°C to +85°C temperatures.

Feature Summary

• Integrates seven ADC channels with 101 dB SNR and 10,000:1 dynamic range
• Supports CT and Rogowski coil sensors with digital integrator and phase/gain compensation
• Includes flexible waveform buffer for IEC 61000-4-7 harmonic analysis
• Features power save modes (PSM1/PSM2) for tamper detection and low-power monitoring

Applications

• Polyphase and split-phase energy meters
• Power quality monitoring systems
• Smart breakers and EV chargers
• Machine health monitoring and smart PDUs

Procurement Notes

Verify the package type LFCSP-40 and operating temperature range (-40°C to +85°C) against design requirements. Confirm that the 10 MHz SPI interface timing aligns with the host microcontroller capabilities. Ensure proper decoupling capacitors are used for the AVDDOUT and DVDDOUT pins as specified in the datasheet.

Selection Notes

Select this component for applications requiring high accuracy (Class 0.2) and advanced power quality features like harmonics and events. Consider the 7-channel architecture if simultaneous measurement of multiple phases and neutral currents is needed. Evaluate the need for external references versus the integrated 1.25 V reference based on drift requirements.

Part Context

The ADE9078ACPZ-RL belongs to the ADE9078 series of polyphase metering AFEs. It is manufactured by Analog Devices Inc. and is available in a Lead Frame Chip Scale Package (LFCSP). The '-RL' suffix indicates the reel packaging format.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.