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ADE7762: 三相电能计量IC，内置相位压差指示

ADE7762是一款高精度、三相电能计量IC。该器件的技术规格超越了IEC62053-21标准所列的精度要求。ADE7762唯一采用的模拟电路是模数转换器（ADC）和基准电压源电路。所有其他信号处理（例如，乘法、滤波和求和）都在数字域中实现。这种方式能够始终在极端环境条件下提供出色的稳定性和精度。ADE7762在低频输出F1和F2上提供平均有功功率信息。上述逻辑输出可用于直接驱动机电计数器或与微控制器（MCU）接口。CF逻辑输出提供瞬时有功功率信息。该输出设计用于校准。ADE7762在VDD引脚上有一个电源监控电路。在VDD上的电源电压达到4 V之前，器件处于无效状态。如果电源电压降至4 V以下，ADE7762复位并且F1、F2和CF上不发出脉冲。多通道多路复用逻辑输出提供每个相位的相位压差、每个相位的反向极性和相序误差。内部相位匹配电路确保电压和电流通道相位匹配。内部空载阈值确保空载时ADE7762不会出现爬电现象。ADE7762采用28引脚SOIC封装。

The ADE7762* is a high accuracy polyphase electrical energy measurement IC. The ADE7762 specifications surpass the accuracy requirements as quoted in the IEC62053-21 standard.The only analog circuitry used in the ADE7762 is in the analog-to-digital converters (ADCs) and reference circuit. All other signal processing (for example, multiplication, filtering, and summation) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time.The ADE7762 supplies average active power information on the low frequency outputs, F1 and F2. These logic outputs can be used to directly drive an electromechanical counter or to interface with a microcontroller (MCU). The CF logic output gives instantaneous active power information. This output is intended to be used for calibration purposes.The ADE7762 includes a power supply monitoring circuit on the VDD pin. The ADE7762 remains inactive until the supply voltage on VDD reaches 4 V. If the supply falls below 4 V, the ADE7762 resets and no pulses are issued on F1, F2, and CF.A multiple multiplexed logic output provides phase dropout per phase, reverse polarity per phase, and a phase sequence error. Internal phase matching circuitry ensures that the voltage and current channels are phase matched. An internal no load threshold ensures that the ADE7762 does not exhibit any creep when there is no load.The ADE7762 is available in a 28-lead SOIC package.

ADE7762 特点 高精度支持50 Hz/60 Hz IEC 62053-21标准 在500:1的动态范围内误差小于0.1% 与三相、三线三角形和三相、四线Y形配置兼容 在频率输出F1和F2上提供平均有功功率 高频输出（CF）设计用于校准和提供瞬时有功功率 逻辑输出REVP针对所有相位之和指示潜在接线错误或负功率 LED驱动器引脚上显示每个相位的压差指示 相序误差检测 直接驱动机电计数器和二相步进电机（F1和F2） 专有ADC和DSP可在变化较大的环境条件下长期保持高精度特性 片内电源监控 片内防爬电保护（空载阈值）

ADE7762 技术指标 Measurement Parameters : Watt Current Sensor Interface: Current Transformer,Shunt Output Interface: Pulsed Package: 24-Lead SOIC

ADE7762 芯片订购指南

产品型号	封装	引脚	温度范围	包装和数量	报价*(100-499)	报价*1000 pcs
ADE7762ARWZ 产品状态: 量产	28 ld SOIC - Wide	28	工业	Tube, 27	$ 4.73	$ 4.70
ADE7762ARWZ-RL 产品状态: 量产	28 ld SOIC - Wide	28	工业	Reel, 1000	-	$ 4.70

ADE7762 应用技术支持与电子电路设计开发资源下载

1. ADE7762 数据手册DataSheet 下载 . pdf
2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
3. ADC模数转换器选型指南 . pdf
4. 电能计量IC选型指南 . pdf