Overview
The ADE7854ACPZ is a high-accuracy, 3-phase electrical energy measurement IC produced by Analog Devices Inc. This integrated circuit is designed for measuring active, reactive, and apparent energy in various 3-phase configurations, including wye or delta systems. It supports multiple standards such as EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23, ensuring compliance with international energy measurement regulations.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 40-lead LFCSP-WQ (6x6) |
| Supply Voltage | 2.4 V to 3.7 V |
| Reference Voltage | 1.2 V (drift +5 ppm/°C typical) with external overdrive capability |
| Operating Temperature | −40°C to +85°C |
| Error in Active and Reactive Energy | Less than 0.1% over a dynamic range of 1000 to 1 at TA = 25°C; less than 0.2% over a dynamic range of 3000 to 1 at TA = 25°C |
| Error in Voltage and Current RMS | Less than 0.1% over a dynamic range of 1000 to 1 at TA = 25°C |
| Phase Angle Measurement Error | Typical 0.3° error |
| Serial Interfaces | I2C, SPI, and HSDC |
Key Features
- Highly accurate measurements of active, reactive, and apparent energy.
- Supports 3-phase, 3- or 4-wire (delta or wye) configurations.
- Supplies total (fundamental and harmonic) active, reactive, and apparent energy on each phase and the overall system.
- Dedicated ADC channel for neutral current input (for ADE7868 and ADE7878 models).
- Selectable no load threshold levels for total and fundamental active and reactive powers, as well as for apparent powers.
- Low power battery mode for phase current monitoring and antitampering detection (for ADE7868 and ADE7878 models).
- Phase angle measurements in both current and voltage channels.
- Power quality measurements including short duration low or high voltage detections, high current variations, and line voltage period measurement.
Applications
The ADE7854ACPZ is primarily used in energy metering systems. Its high accuracy and compliance with various international standards make it suitable for a wide range of applications, including smart meters, industrial power monitoring, and renewable energy systems.
Q & A
- What is the primary function of the ADE7854ACPZ?
The primary function of the ADE7854ACPZ is to measure active, reactive, and apparent energy in 3-phase electrical systems.
- What are the supported 3-phase configurations?
The ADE7854ACPZ supports 3-phase, 3- or 4-wire (delta or wye) configurations.
- What is the accuracy of the energy measurements?
The device has an accuracy of less than 0.1% over a dynamic range of 1000 to 1 at TA = 25°C and less than 0.2% over a dynamic range of 3000 to 1 at TA = 25°C.
- What serial interfaces are supported?
The ADE7854ACPZ supports I2C, SPI, and HSDC serial interfaces.
- What is the operating temperature range of the ADE7854ACPZ?
The operating temperature range is −40°C to +85°C.
- Does the ADE7854ACPZ support power quality measurements?
- What is the purpose of the dedicated ADC channel for neutral current input?
The dedicated ADC channel for neutral current input is available in the ADE7868 and ADE7878 models and is used to measure neutral current in 4-wire systems.
- How does the low power battery mode function?
The low power battery mode, available in the ADE7868 and ADE7878 models, monitors phase currents for antitampering detection and ensures continuity of energy accumulation during tampering situations.
- What are the typical applications of the ADE7854ACPZ?
The ADE7854ACPZ is typically used in energy metering systems, smart meters, industrial power monitoring, and renewable energy systems.
- Does the ADE7854ACPZ support phase angle measurements?
