Overview
The ADE7868AACPZ is a high-accuracy, 3-phase electrical energy measurement integrated circuit (IC) designed by Analog Devices Inc. This IC is part of the ADE7868A series and is specifically tailored for applications requiring precise polyphase energy measurement. It operates with a supply voltage range of 2.97V to 3.63V and is housed in a 40-lead LFCSP-EP (Lead Frame Chip Scale Package-Exposed Pad), making it suitable for compact design footprints in modern electronics.
The device incorporates second-order Σ-Δ analog-to-digital converters (ADCs), a digital integrator, reference circuitry, and all necessary signal processing to perform total active, reactive, and apparent energy measurements, as well as rms calculations. It also features tamper detection and low power modes, enhancing its suitability for smart metering applications.
Key Specifications
| Parameter | Value |
|---|---|
| Base Product Number | ADE7868 |
| Current - Supply | 20mA |
| Input Impedance | 400kΩ |
| Measurement Error | 0.2% |
| Meter Type | 3 Phase |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 40-WFQFN Exposed Pad, CSP (6x6) |
| Voltage - Supply | 2.8 V ~ 3.7 V |
| Voltage - I/O High | 2V, 2.4V |
| Voltage - I/O Low | 0.4V, 0.8V |
Key Features
- High accuracy 3-phase electrical energy measurement
- Second-order Σ-Δ analog-to-digital converters (ADCs) and digital integrator
- Reference circuitry and comprehensive signal processing for active, reactive, and apparent energy measurements
- Three flexible pulse outputs and waveform sampling registers
- Power quality measurements including voltage and current detection, line voltage period measurement, and phase angle calculations
- Tamper detection and three low power modes for energy saving
- Dual serial interfaces (SPI and I²C) and a high-speed data capture (HSDC) port
- Interrupt request pins (IRQ0 and IRQ1) for event indication
Applications
- Utility and Energy Sector: Smart grid and metering solutions for accurate polyphase energy measurement.
- Industrial Automation: Energy monitoring and management of multi-phase machinery and systems.
- Building and Home Automation Systems: Precise monitoring of energy consumption across various circuits.
- Retail Markets: High-end electronics and appliances requiring accurate energy metering and tamper detection.
Q & A
- What is the primary function of the ADE7868AACPZ IC?
The primary function of the ADE7868AACPZ IC is to perform high-accuracy 3-phase electrical energy measurements, including active, reactive, and apparent energy calculations.
- What is the operating voltage range of the ADE7868AACPZ?
The operating voltage range of the ADE7868AACPZ is 2.97V to 3.63V.
- What types of interfaces does the ADE7868AACPZ support?
The ADE7868AACPZ supports SPI, I²C, and a high-speed data capture (HSDC) port.
- Does the ADE7868AACPZ have tamper detection features?
- What is the package type and size of the ADE7868AACPZ?
The ADE7868AACPZ is housed in a 40-lead LFCSP-EP (Lead Frame Chip Scale Package-Exposed Pad) with dimensions of 6x6 mm.
- What are the key power quality measurements supported by the ADE7868AACPZ?
The ADE7868AACPZ supports power quality measurements such as short duration low or high voltage detection, high current variation, line voltage period measurement, and angles between phase voltages and currents.
- Is the ADE7868AACPZ RoHS compliant?
- What is the measurement error of the ADE7868AACPZ?
The measurement error of the ADE7868AACPZ is 0.2%.
- What are the typical applications of the ADE7868AACPZ?
The ADE7868AACPZ is typically used in smart grid and metering solutions, industrial automation, building and home automation systems, and high-end electronics.
- How does the ADE7868AACPZ handle waveform sampling?
The ADE7868AACPZ includes waveform sampling registers that allow access to all ADC outputs.
