产品描述

ADE7763: 单相有功和视在功率计量IC

ADE7763配备专有ADC和固定功能DSP，可在变化较大的环境条件下长期保持高精度特性。ADE7763内置两个二阶16位Σ-Δ型ADC、一个数字积分器（在通道1上）、基准电压源电路、一个温度传感器及所有必需的信号处理电路，可执行有功和视在功率测量、线路电压周期测量以及电压和电流通道均方根值的计算。可选片内数字积分器可以直接与罗氏线圈等di/dt电流传感器接口，因而无需外部模拟积分器，并且可提供出色的长期稳定性以及电流和电压通道之间的精密相位匹配。

ADE7763配有一个串行接口，可用来读取数据及与有功功率成比例的脉冲输出频率(CF)。它提供通道失调校正、相位校准和功率校准等各种系统校准功能，确保高精度测量。该器件还能检测短路持续时间、低压或高压变化。

在仅累计正功率模式下，器件仅在检测到正功率时才累计功率。内部空载阈值确保空载时器件不会出现爬电现象。零交越输出(ZX)产生一个与线路电压的零交越点同步的脉冲。在周期有功和视在功率累计模式下，器件内部会使用该信号以加快校准。

中断状态寄存器指示中断的性质，中断使能寄存器控制何种事件在IRQ 引脚上产生输出（开漏、低电平有效逻辑输出）。

ADE7763采用20引脚SSOP封装。

资料简介：

The ADE7763 features proprietary ADCs and fixed function
DSP for high accuracy over large variations in environmental
conditions and time. The ADE7763 incorporates two second-
order, 16-bit Σ-? ADCs, a digital integrator (on Ch1), reference
circuitry, a temperature sensor, and all the signal processing

required to perform active and apparent energy measurements,
line-voltage period measurements, and rms calculation on the
voltage and current channels. The selectable on-chip digital
integrator provides direct interface to di/dt current sensors such
as Rogowski coils, eliminating the need for an external analog
integrator and resulting in excellent long-term stability and
precise phase matching between the current and the voltage
channels.
The ADE7763 provides a serial interface to read data and a
pulse output frequency (CF) that is proportional to the active
power. Various system calibration features such as channel
offset correction, phase calibration, and power calibration
ensure high accuracy. The part also detects short duration, low
or high voltage variations.
The positive-only accumulation mode gives the option to
accumulate energy only when positive power is detected. An
internal no-load threshold ensures that the part does not exhibit
any creep when there is no load. The zero-crossing output (ZX)
produces a pulse that is synchronized to the zero-crossing point
of the line voltage. This signal is used internally in the line cycle
active and apparent energy accumulation modes, which enables
faster calibration.
The interrupt status register indicates the nature of the interrupt,
and the interrupt enable register controls which event produces
an output on the IRQ pin, an open-drain, active low logic output.
The ADE7763 is available in a 20-lead SSOP package.

   其它主力产品：ADE7751 ADE7752 ADE7753 ADE7755  MSP430F413 MSP430FE427 MSP430F415 UPD78F9222 UPD78F9234   锂电池 ER14250 CR123A 锂一次性电池

RN8209 RX8025 LM5007 AT24C256 24LC256 UPD78f0526 UPD78f0527 CS5460 CS5464

ADE7763 MSP430F417 RX8025T LM5007 磁保持继电器 红宝石电解电容 三和电解电容 MAX3085 ECH1209 FM24CL64 FM24CL128 K1010D

PS2501-1 光纤通讯模块 智能电表 AT91SAM9260 ECH384R1S11000 HS138 ECH485 ECH485N YE801

     如需订购或查询 点击下载资料