ADE7757
PRODUCTIONSingle Phase Energy Metering IC with Integrated Oscillator
- Part Models
- 2
- 1ku List Price
- Starting From $1.72
Overview
- Exceeds IEC61036/60687
- Less than 0.1% Active Energy Error Over Dynamic Range of 1000:1
- Active Energy Measurement
- High Frequency Pulse Output
- Voltage SAG and Zero-crossing Detection
- Current sensor interface for current transformers or shunts
- On-chip Temperature Sensor and Voltage Reference (2.4 V)
- Low Power (25 mW typical)
The ADE7757 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 ADE7757 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 ADE7757 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 ADE7757 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 ADE7757 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 IEC61036 low cost, watt-hour meter reference design.
NOTE: For polyphase system designs, the ADE7752A is recommended.
Documentation
Data Sheet 1
Application Note 3
Technical Articles 10
Association & Standard 17
Frequently Asked Question 1
Circuit Note 1
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 |
|---|---|---|---|
| ADE7757ARNZ | 16 ld SOIC | ||
| ADE7757ARNZRL | 16 ld SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
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Oct 5, 2010 - 10_0146 Halogen Free Material Change for 14/16L SOIC_N Products |
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| ADE7757ARNZ | PRODUCTION | |
| ADE7757ARNZRL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.