ADE7757A

PRODUCTION

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

Data Sheet (Rev. A) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.71

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Overview

Current sensor interface for current transformers or shunts
Less than 0.1% Active Energy Error Over Dynamic Range of 500:1
Active Energy Measurement
High Frequency Pulse Output

Exceeds IEC62053-21
On-chip Temperature Sensor and Voltage Reference (2.45 V)
Low Power (20 mW typical)
Reverse Power Indication (REVP)

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.

Part Models: 2
1ku List Price: Starting From $1.71

Documentation

Frequently Asked Question 1

FAQ 09/05/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD71056ARZ	16-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD71056ARZ-RL	16-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 5, 2010 - 10_0146 Halogen Free Material Change for 14/16L SOIC_N Products
		PCN10_0146_Form Material_Report AEC-Q100 Reliability Report ADI0012 Reliability Report
AD71056ARZ	PRODUCTION
AD71056ARZ-RL	PRODUCTION