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Product Detailed Parameters
- Description：IC ENERGY METERING 3PH 28LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Input Impedance：280kOhms
- Measurement Error：-
- Voltage - I/O High：2.4V
- Voltage - I/O Low：0.8V
- Current - Supply：10.6mA
- Voltage - Supply：2.97 V ~ 3.63 V
- Meter Type：3 Phase
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad, CSP
- Supplier Device Package：28-LFCSP (5x5)
- Grade：-
- Qualification：-
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Overview
The ADE7978ACPZ-RL is a polyphase multifunction energy metering integrated circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 3.3 V and supports an operating temperature range from -40°C to +85°C. The device features three channels and utilizes an LFCSP-28 surface-mount package with SPI interface communication. It provides a signal-to-noise ratio of 67 dB and has a resolution of 1 bit.
Feature Summary
- Polyphase multifunction energy metering capability for three-phase systems
- Integrated digital signal processing for power measurement calculations
- SPI serial interface for configuration and data access
Applications
- Three-phase energy metering systems
- Power quality monitoring applications
- Industrial process monitoring equipment
Procurement Notes
Verify the specific suffix (RL) indicates reel packaging when sourcing. Confirm compatibility with the EVAL-ADE7978EBZ evaluation board for design validation. Check current availability status as distribution may be limited. Ensure the LFCSP-28 footprint matches the target PCB layout requirements before finalizing procurement orders.
Selection Notes
Select this component for designs requiring dedicated polyphase metering with SPI connectivity. Consider the 3-channel architecture for three-phase implementations. Evaluate the 67 dB SNR against system accuracy requirements. Verify that the 3.3 V supply constraint aligns with the overall system power budget and thermal management strategy.
Part Context
This part belongs to the ADE7978 series of specialized data acquisition ADCs designed for energy metering. It is often evaluated alongside related components like the ADE7932 and ADE7933 in isolated metering chipsets. The device integrates necessary signal processing circuits for comprehensive power analysis without external microcontrollers.
Replacement Considerations
Check for pin-compatible alternatives within the ADE78xx or ADE79xx families if supply constraints exist. Verify functional equivalence regarding channel count and interface protocols before substitution.
