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MFG:ADI D/C:05/
Part Number: ADE7761
MFG: ADI
D/C: 05/
Description: The ADE7761 is a high accuracy, fault tolerant, electrical energy measurement IC intended for use with...
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ADE7761
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DataSheet
General Description
ADE7761 General Description
The ADE7761 is a high accuracy, fault tolerant, electrical energy measurement IC intended for use with 2-wire distribution systems. The part specifications surpass the accuracy requirements as quoted in the IEC61036 standard.
The only analog circuitry used on the ADE7761 is in the ADCs and reference circuit. All other signal processing (such as 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 ADE7761 incorporates a fault detection scheme similar to the ADE7751 by continuously monitoring both the phase and neutral currents. A fault is indicated when these currents differ by more than 6.25%.
ADE7761 Maximum Ratings
| Parameter | Rating |
| VDD to AGND Analog Input Voltage to AGND V1AP, V1BP, V1N, V2N, V2P, MISCAL Reference Input Voltage to AGND Digital Input Voltage to DGND Digital Output Voltage to DGND Operating Temperature Range Industrial Storage Temperature Range Junction Temperature 20-Lead SSOP, Power Dissipation JA Thermal Impedance Lead Temperature, Soldering Vapor Phase (60 s) Infrared (15 s) |
−0.3 V to +7 V −6 V to +6 V −0.3 V to VDD + 0.3 V −0.3 V to VDD + 0.3 V −0.3 V to VDD + 0.3 V −40°C to +85°C −65°C to +150°C 150°C 450 mW 112°C/W 215°C 220°C |
ADE7761 Features
High accuracy active energy measurement IC, supports IEC 687/61036
Less than 0.1% error over a dynamic range of 500 to 1
Supplies active power on the frequency outputs F1 and F2
High frequency output CF is intended for calibration and supplies instantaneous active power
Continuous monitoring of the phase and neutral current allows fault detection in 2-wire distribution systems
Current channels input level best suited for current transformer sensors
Uses the larger of the two currents (phase or neutral) to bill-even during a fault condition
Continuous monitoring of the voltage and current inputs allows missing neutral detection
Uses one current input (phase or neutral) to bill when missing neutral is detected
Two logic outputs (FAULT and REVP) can be used to indicate a potential miswiring, fault, or missing neutral condition
Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2)
Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time
Reference 2.5 V ± 8% (drift 30 ppm/°C typical) with external overdrive capability
Single 5 V supply, low power
Less than 0.1% error over a dynamic range of 500 to 1
Supplies active power on the frequency outputs F1 and F2
High frequency output CF is intended for calibration and supplies instantaneous active power
Continuous monitoring of the phase and neutral current allows fault detection in 2-wire distribution systems
Current channels input level best suited for current transformer sensors
Uses the larger of the two currents (phase or neutral) to bill-even during a fault condition
Continuous monitoring of the voltage and current inputs allows missing neutral detection
Uses one current input (phase or neutral) to bill when missing neutral is detected
Two logic outputs (FAULT and REVP) can be used to indicate a potential miswiring, fault, or missing neutral condition
Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2)
Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time
Reference 2.5 V ± 8% (drift 30 ppm/°C typical) with external overdrive capability
Single 5 V supply, low power
ADE7761 Connection Diagram
ADE7761
PDF/DataSheet Download
- Datasheet: ADE7761
- File Size: 653340 KB
- Manufacturer: AD
- Click here to Download
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