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ADE7757ARN 数据表(PDF) 4 Page - Analog Devices |
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ADE7757ARN 数据表(HTML) 4 Page - Analog Devices |
4 / 14 page PRELIMINARY TECHNICAL DATA REV. PrC. ADE7757 –4– ABSOLUTE MAXIMUM RATINGS* (TA = +25°C unless otherwise noted) VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V Analog Input Voltage to AGND V1P, V1N, V2P and V2N . . . . . . . . . . . . . . . –6 V to +6 V Reference Input Voltage to AGND . . . –0.3 V to VDD + 0.3 V Digital Input Voltage to DGND . . . . . –0.3 V to VDD + 0.3 V Digital Output Voltage to DGND . . . . –0.3 V to VDD + 0.3 V Operating Temperature Range Industrial (A, B Versions) . . . . . . . . . . . . –40°C to +85°C Storage Temperature Range . . . . . . . . . . . –65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . +150°C CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADE7757 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. 16-Lead Plastic SOIC, Power Dissipation . . . . . . . . . 350mW θ JA Thermal Impedance** . . . . . . . . . . . . . . . . . 124.9°C/W Lead Temperature, Soldering Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . +215°C Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . +220°C *Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. **JEDEC 1S Standard (2 layer) Board Data TERMINOLOGY MEASUREMENT ERROR The error associated with the energy measurement made by the ADE7757 is defined by the following formula: % % 100 7757 × − = Energy True Energy True ADE by registered Energy Error PHASE ERROR BETWEEN CHANNELS The HPF (High Pass Filter) in the current channel (Channel V1) has a phase lead response. To offset this phase response and equalize the phase response between channels, a phase correction network is also placed in Channel V1. The phase correction network matches the phase to within ±0.1° over a range of 45 Hz to 65 Hz and ±0.2° over a range 40 Hz to 1 kHz. See Figures 19 and 20. POWER SUPPLY REJECTION This quantifies the ADE7757 measurement error as a percent- age of reading when the power supplies are varied. For the ac PSR measurement a reading at nominal supplies (5 V) is taken. A 200 mV rms/100 Hz signal is then introduced onto the supplies and a second reading obtained under the same input signal levels. Any error introduced is expressed as a percentage of reading—see Measurement Error definition. For the dc PSR measurement a reading at nominal supplies (5 V) is taken. The supplies are then varied ±5% and a second reading is obtained with the same input signal levels. Any error introduced is again expressed as a percentage of reading. ADC OFFSET ERROR This refers to the small dc signal (offset) associated with the analog inputs to the ADCs. However, the HPF in Channel V1 eliminates the offset in the circuitry. Therefore, the power cal- culation is not affected by this offset. FREQUENCY OUTPUT ERROR The frequency output error of the ADE7757 is defined as the difference between the measured output frequency (mi- nus the offset) and the ideal output frequency. The differ- ence is expressed as a percentage of the ideal frequency. The ideal frequency is obtained from the ADE7757 trans- fer function—see Transfer Function section. GAIN ERROR The gain error of the ADE7757 is defined as the differ- ence between the measured output frequency (minus the offset) and the ideal output frequency. It is measured with a gain of 1 in channel V1. The difference is expressed as a percentage of the ideal frequency. The ideal frequency is obtained from the ADE7757 transfer function—see Trans- fer Function section. WARNING! ESD SENSITIVE DEVICE |
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类似说明 - ADE7757ARN |
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