Overview
The ADE7878ACPZ is a high-accuracy, 3-phase electrical energy measurement IC produced by Analog Devices Inc. This integrated circuit is designed to measure active, reactive, and apparent energy in various 3-phase configurations, including wye or delta systems. It supports multiple international standards such as EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23, ensuring high precision and compliance in energy metering applications.
Key Specifications
| Specification | Description |
|---|---|
| Package | 40-LFCSP-WQ (6x6) |
| Operating Temperature | -40°C to +85°C |
| Supply Voltage | 2.4 V to 3.7 V |
| Reference Voltage | 1.2 V (drift +5 ppm/°C typical) |
| Current Supply | 20 mA |
| Measurement Error | Less than 0.1% error in voltage and current rms over a dynamic range of 1000 to 1 at TA = 25°C |
| Serial Interfaces | I2C, SPI, and HSDC |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Key Features
- Highly accurate measurements of active, reactive, and apparent energy.
- Supports current transformer and di/dt current sensors.
- Dedicated ADC channel for neutral current input.
- Supplies sampled waveform data on all three phases and on neutral current.
- Selectable no load threshold levels for total and fundamental active and reactive powers, as well as for apparent powers.
- Low power battery mode monitors phase currents for antitampering detection.
- Battery supply input for missing neutral operation.
- Phase angle measurements in both current and voltage channels with a typical 0.3° error.
- Incorporates power quality measurements such as short duration low or high voltage detections, short duration high current variations, and line voltage period measurement.
Applications
The ADE7878ACPZ is primarily used in energy metering systems, including smart meters and other advanced metering infrastructure. It is suitable for various 3-phase configurations and supports a wide range of power quality measurements, making it an ideal choice for accurate and reliable energy monitoring.
Q & A
- What is the ADE7878ACPZ used for?
The ADE7878ACPZ is used for high-accuracy 3-phase electrical energy measurement in various energy metering applications. - What are the supported standards for the ADE7878ACPZ?
The ADE7878ACPZ supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards. - What is the operating temperature range of the ADE7878ACPZ?
The operating temperature range is -40°C to +85°C. - What are the supply voltage and current requirements for the ADE7878ACPZ?
The supply voltage is 2.4 V to 3.7 V, and the current supply is 20 mA. - Does the ADE7878ACPZ support multiple serial interfaces?
Yes, it supports I2C, SPI, and HSDC serial interfaces. - Is the ADE7878ACPZ RoHS compliant?
Yes, the ADE7878ACPZ is lead free and RoHS compliant. - What is the measurement error of the ADE7878ACPZ?
The measurement error is less than 0.1% in voltage and current rms over a dynamic range of 1000 to 1 at TA = 25°C. - Does the ADE7878ACPZ have low power modes?
Yes, it has specially designed low power modes to ensure continuity of energy accumulation during tampering situations. - What kind of power quality measurements does the ADE7878ACPZ support?
The ADE7878ACPZ supports power quality measurements such as short duration low or high voltage detections, short duration high current variations, and line voltage period measurement. - Can the ADE7878ACPZ measure phase angles?
Yes, it can measure phase angles in both current and voltage channels with a typical 0.3° error.
