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ADE7761ARS-REF 数据表(PDF) 4 Page - Analog Devices |
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ADE7761ARS-REF 数据表(HTML) 4 Page - Analog Devices |
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4 / 28 page  ADE7761 Rev. A | Page 4 of 28 SPECIFICATIONS VDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, on-chip oscillator, TMIN to TMAX = –40°C to +85°C. Table 1. Parameter Value Unit Test Conditions/Comments ACCURACY1 Measurement Error2 0.1 % of reading, typ Over a dynamic range of 500 to 1 Phase Error between Channels (PF = 0.8 Capacitive) ±0.05 Degrees, max Phase lead 37° (PF = 0.5 Inductive) ±0.05 Degrees, max Phase lag 60° AC Power Supply Rejection2 Output Frequency Variation 0.01 %, typ V1A = V1B = V2P = ±100 mV rms DC Power Supply Rejection2 Output Frequency Variation 0.01 %, typ V1A = V1B = V2P = ±100 mV rms FAULT DETECTION2, 3 See the Fault Detection section Fault Detection Threshold Inactive Input <> Active Input 6.25 %, typ (V1A or V1B active) Input Swap Threshold Inactive Input <> Active Input 6.25 % of larger, typ (V1A or V1B active) Accuracy Fault Mode Operation V1A Active, V1B = AGND 0.1 % of reading, typ Over a dynamic range of 500 to 1 V1B Active, V1A = AGND 0.1 % of reading, typ Over a dynamic range of 500 to 1 Fault Detection Delay 3 Seconds, typ Swap Delay 3 Seconds, typ MISSING NEUTRAL MODE2, 4 See the Missing Neutral Detection section Missing Neutral Detection Threshold V2P − V2N 59.4 mV peak, min Accuracy Missing Neutral Mode V1A Active, V1B = V2P = AGND 0.1 % of reading, typ Over a dynamic range of 500 to 1 V1B Active, V1A = V2P = AGND 0.1 % of reading, typ Over a dynamic range of 500 to 1 Missing Neutral Detection Delay 3 Seconds, typ ANALOG INPUTS V1A − V1N, V1B − V1N, V2P − V2N Maximum Signal Levels ±660 mV peak, max Differential input 660 mV peak, max Differential input MISCAL − V2N Input Impedance (DC) 400 kΩ, min Bandwidth (−3 dB) 7 kHz, typ ADC Offset Error2 10 mV, max Uncalibrated error, see the Terminology section for details Gain Error ±4 %, typ External 2.5 V reference REFERENCE INPUT REFIN/OUT Input Voltage Range 2.7 V, max 2.5 V + 8% 2.3 V, min 2.5 V − 8% Input Impedance 4 kΩ, min Input Capacitance 10 pF, max ON-CHIP REFERENCE Reference Error ±200 mV, max Temperature Coefficient 30 ppm/°C, typ Current Source 20 µA, min ON-CHIP OSCILLATOR Oscillator Frequency 450 kHz Oscillator Frequency Tolerance ±12 % of reading, typ Temperature Coefficient 30 ppm/°C, typ See footnotes on next page. |
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