ADE7757A:Single Phase Energy Metering IC with Integrated Oscillator and Reverse Power Indication

ADE7757A: Single Phase Energy Metering IC with Integrated Oscillator and Reverse Power Indication

The ADE7757A (AD71056) is an accurate electrical energy measurement integrated circuit. It is a pin reduction version of ADE7755 with an enhancement of a precise oscillator circuit that serves as a clock source to the chip. The ADE7757A eliminates the cost of an external crystal or resonator, thus reducing the overall cost of a meter built with this IC. The chip directly interfaces with shunt resistor.The ADE7757A provides instantaneous and average real power based on line current and voltage. The part specifications surpass the accuracy requirements as quoted in the IEC61036 standard. The only analog circuitry used in the ADE7757A is in the ADCs and reference circuit. All other signal processing (e.g., multiplication and filtering) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time.The small analog input full-scale allows the chip to interface to low value shunt resistances without losing dynamic range. The ADE7757A is available in 16-lead SOIC narrow-body package.The Application Note AN-679 can be used as a basis for a description of an IEC62053-21 low cost, watt-hour meter reference design..NOTE: For polyphase system designs, the ADE7752A is recommended

ADE7757A 特点

Exceeds IEC62053-21
Less than 0.1% Active Energy Error Over Dynamic Range of 500:1
Active Energy Measurement
High Frequency Pulse Output
Current sensor interface for current transformers or shunts
On-chip Temperature Sensor and Voltage Reference (2.45 V)
Low Power (20 mW typical)
Reverse Power Indication (REVP)

ADE7757A 技术指标

Output Interface: Pulsed
Package: 16-Lead SOIC
Measurement Parameters : Watt
Current Sensor Interface: Current Transformer,Shunt

ADE7757A 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
AD71056AR 产品状态: 停产	16 ld SOIC	16	工业	Tube, 48	-	-
AD71056ARZ 产品状态: 量产	16 ld SOIC	16	工业	Tube, 48	$ 1.21	$ 1.17
AD71056ARZ-RL 产品状态: 量产	16 ld SOIC	16	工业	Reel, 2500	-	$ 1.17