ADE7758 脉冲输出低功耗三相电能计量IC | Analog Devices,Inc.ADI美国模拟器件公司 - ADE7758ARW ADE7758ARWRL ADE7758ARWZ ADE7758ARWZRL EVAL-ADE7758ZEB

ADE7758 中具有波形采样寄存器，它可以对模数转换器的输出进行访问。该器件集成了一个用于短时低电平和高电平变化的检测电路，变化的阈值电压和持续时间（即半周期数）由用户编程决定。三相中的任一相的线电压过零检测与电压过零点是同步的，过零检测的结果可用于测量三个电压输入中任意一个的周期。也可用于内部芯片的线循环（LINE CYCLE）电能累加模式。该模式使电能累加与半周期的整数倍同步，以此实现更快更准确的校准。

数据通过ADE7758 的SPI 串行接口读取。中断请求输出（IRQ）为开漏极，低电平有效。在ADE7758 中出现一个或多个中断事件时，IRQ输出变为低电平。通过状态寄存器显示中断事件的性质。ADE7758采用24 引脚小外形封装（SOIC）。

The ADE77581 is a high accuracy, 3-phase electrical energy measurement IC with a serial interface and two pulse outputs. The ADE7758 incorporates second-order Σ-Δ ADCs, a digital integrator, reference circuitry, a temperature sensor, and all the signal processing required to perform active, reactive, and apparent energy measurement and rms calculations.

The ADE7758 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 ADE7758 provides system calibration features for each phase, that is, rms offset correction, phase calibration, and power calibration. The APCF logic output gives active power information, and the VARCF logic output provides instantaneous reactive or apparent power information

ADE7758 技术指标

Meter Type	Polyphase Multifunction
Active Energy Accuracy	0.1% over 1000:1 @25°C
Active Energy Bandwidth	14kHz
VAR Energy Accuracy	0.1% over 1000:1 @ 25°C
IRMS Accuracy	0.5% over 500: 1
VRMS Accuracy	0.5% over 20:1
Analog input range	+/-32mV to +/- 500mV peak
Power Consumption	70mW Typical
Reference Tempco	30ppm/°C Typical

ADE7758 特点

高准确度：支持IEC60687，IEC61036，, IEC 61268, IEC 62053-21,IEC 62053- 22, 和IEC 62053-23 标准。
适用于三相/三线，三相/四线和其它三相系统。
温度在25 度时，在1000:1 的动态范围内，有功电能误差小于0.1%。
提供有功电量/无功电量/视在电量，电压有效值，电流有效值和采样波形数据。
两路脉冲输出，一为有功功率，二为无功率或视在功率，带频率编程功能。
数字功率，相位和有效值偏移校正。
提供线电压骤降（SAG）和电压检测的片内用户可编程阈值电压。
片内数字积分器可以直接连接 di/dt 电流传感器。
电流通道上的可编程增益放大器（PGA）允许直接连接电流分流器和电流互感器。
带中断请求输出功能的SPI®兼容串行接口。
专利模数转换器（ADC）和数字信号处理器（DSP）技术保证在各种环境和时间条件下的高准确度。
2.4 伏基准电压（温度系数典型值30ppm /°C ），带外部过载功能.
Highly accurate; supports IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22, and IEC 62053-23
Compatible with 3-phase/3-wire, 3-phase/4-wire, and other 3-phase services
Less than 0.1% active energy error over a dynamic range of 1000 to 1 at 25°C
Supplies active/reactive/apparent energy, voltage rms, current rms, and sampled waveform data
Two pulse outputs, one for active power and the other selectable between reactive and apparent power with programmable frequency
Digital power, phase, and rms offset calibration
On-chip, user-programmable thresholds for line voltage SAG and overvoltage detections
An on-chip, digital integrator enables direct interface-to-current sensors with di/dt output
A PGA in the current channel allows direct interface to shunts and current transformers
An SPI®-compatible serial interface with IRQ
Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time
Reference 2.4 V (drift 30 ppm/°C typical) with external overdrive capability
Single 5 V supply, low power (70 mW typical)

ADE7758 产品型号选择

Model 型号	Package 封装	Pins 管脚个数	Temp Range 工作温度	无铅封装产品
ADE7758ARW	24 ld SOIC - Wide	24	Ind	N Material Declaration
ADE7758ARWRL	24 ld SOIC - Wide	24	Ind	N Material Declaration
ADE7758ARWZ	24 ld SOIC - Wide	24	Ind	Y Material Declaration
ADE7758ARWZRL	24 ld SOIC - Wide	24	Ind	Y Material Declaration
EVAL-ADE7758ZEB	EVALUATION BOARDS	-	Ind	Y

ADE7758 技术资料：

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