Features and Benefits
- Exceeds IEC61036/60687
- Less than 0.1% Active Energy Error Over Dynamic Range of 500:1
- Active Energy Measurement
- High Frequency Pulse Output
- Reverse Power Indication (REVP)
- Current sensor interface for current transformers or shunts
- On-chip Temperature Sensor and Voltage Reference (2.5 V)
- Low Power (20 mW typical)
The ADE7768 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 ADE7768 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 ADE7768 provides instantaneous and average real power based on line current and voltage, and only accumulates when the power is positive – ignoring negative power. The part specifications surpass the accuracy requirements as quoted in the IEC61036 standard. The only analog circuitry used in the ADE7768 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 ADE7768 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.
Product Lifecycle Last Time Buy
All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.
Documentation & Resources
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 Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|ADE7768ARZ||Material Declaration||Reliability Data||16-Lead SOIC|
|ADE7768ARZ-RL||Material Declaration||Reliability Data||16-Lead SOIC|
|Wafer Fabrication Data|
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