EVAL-ADE7878EBZ: Poly Phase Multifunction Energy Metering IC with Total and Fundamental Powers
The ADE78781 is a high accuracy, 3-phase electrical energy measurement IC with serial interfaces and three flexible pulse outputs. The ADE7878 incorporates second-order Σ-Δ ADCs, a digital integrator, reference circuitry, and all the signal processing required to perform total (fundamental and harmonic) active, reactive and apparent energy measurement, fundamental active and reactive energy measurement and rms calculations. A fixed function digital signal processor (DSP) executes this signal processing.
The ADE7878 is suitable to measure active, reactive, and apparent energy in various 3-phase configurations, such as WYE or DELTA services, with both three and four wires. The ADE7878 provides system calibration features for each phase, that is, rms offset correction, phase calibration, and gain calibration. The CF1, CF2 and CF3 logic outputs provide a wide choice of power information: total/fundamental active/reactive power, total apparent power, or sum of current rms values.
The ADE7878 has waveform sample registers that allow access to all ADC outputs. The device also incorporates power quality measurements such as short duration low or high voltage detections, short duration high current variations, line voltage period measurement and angles between phase voltages and currents. Two serial interfaces can used to communicate with the ADE7878 : SPI or I²C while a dedicated high speed interface, HSDC (High Speed Data Capture) port, can be used in conjunction with I²C to provide access to the ADC outputs and real time power information. The ADE7878 has also two interrupt request pins, IRQ0 and IRQ1, to indicate that an enabled interrupt event has occurred.
Three specially designed low power modes ensure the continuity of the energy accumulation when the ADE7878 is in tampering situation.
The ADE7878 is available in 40-lead LFCSP lead free package.
EVAL-ADE7878EBZ 特点
- Highly accurate; supports EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22 and IEC 62053-23
- Compatible with 3-phase, 3 or 4 wire (delta or wye) and other 3-phase services
- Supplies total (fundamental and harmonic) active/reactive/ apparent energy and fundamental active/reactive energy on each phase and on the overall system
- Less than 0.1% error in active and reactive energy over a dynamic range of 1000 to 1 at 25°C
- Less than 0.2% error in active and reactive energy over a dynamic range of 3000 to 1 at 25°C
- Supports current transformer and di/dt current sensors
- Dedicated ADC channel for the neutral current input
- Less than 0.1% error in voltage and current rms over a dynamic range of 1000 to 1 at 25°C
EVAL-ADE7878EBZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADE7878ACPZ | 量产 | 40 | 工业 | |
| ADE7878ACPZ-RL | 量产 | 40 | 工业 | |
| EVAL-ADE7878EBZ | 量产 | 评估板 | - | 工业 |
EVAL-ADE7878EBZ 应用技术支持与电子电路设计开发资源下载
- ADE7878 数据手册DataSheet 下载 . pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
- 电能计量IC选型指南 . pdf
