ADE7757ARN Analog Devices Inc, ADE7757ARN Datasheet
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ADE7757ARN
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ADE7757ARN Summary of contents
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FEATURES On-Chip Oscillator as Clock Source High Accuracy, Supposes 50 Hz/60 Hz IEC 521/IEC 61036 Less than 0.1% Error over a Dynamic Range of 500 to 1 The ADE7757 Supplies Average Real Power on the Frequency Outputs F1 and F2 ...
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ADE7757–SPECIFICATIONS Parameter 1, 2 ACCURACY 1 Measurement Error on Channel V1 1 Phase Error between Channels V1 Phase Lead 37 (PF = 0.8 Capacitive) V1 Phase Lag 60 (PF = 0.5 Inductive Power Supply Rejection Output Frequency Variation ...
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TIMING CHARACTERISTICS Parameter A, B Versions 3 t 244 1 t See Table 1 173 4 t See Table III NOTES 1 Sample tested during initial release ...
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... ORDERING GUIDE Model Package Description Package Options ADE7757ARN SOIC Narrow-Body ADE7757ARNRL SOIC Narrow-Body in Reel EVAL-ADE7757EB Evaluation Board ADE7757ARN-REF Reference Design TERMINOLOGY Measurement Error The error associated with the energy measurement made by the ADE7757 is defined by the following formula Energy Registered by ADE 7757 % Error ...
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Pin No. Mnemonic Description 1 V Power Supply. This pin provides the supply voltage for the circuitry in the ADE7757. The supply voltage DD should be maintained capacitor in parallel with a ceramic 100 nF capacitor. 2, ...
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ADE7757–Typical Performance Characteristics 220V 40A TO 40mA 350 0 ON-CHIP REFERENCE 0.4 0.3 0.2 +25 C 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0.01 0.1 1 CURRENT – A TPC 1. Error Reading ...
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PF = +0.5 0 –0.5 0.2 0 +1.0 –0.1 –0.2 –0.3 –0.4 –0 FREQUENCY – Hz TPC 5. Error Reading over Input Frequency 1 ...
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ADE7757 THEORY OF OPERATION The two ADCs digitize the voltage signals from the current and voltage sensors. These ADCs are 16-bit - with an oversampling rate of 450 kHz. This analog input structure greatly simplifies sensor interfacing by providing a ...
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Nonsinusoidal Voltage and Current The real power calculation method also holds true for nonsinusoidal current and voltage waveforms. All voltage and current waveforms in practical applications will have some har- monic content. Using the Fourier Transform, instantaneous voltage and current ...
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ADE7757 Typical Connection Diagrams Figure 7 shows a typical connection diagram for Channel V1. A shunt is the current sensor selected for this example because of its low cost compared to other current sensors such as the CT (current transformer). ...
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The HPF in Channel V1 has an associated phase response that is compensated for on-chip. Figures 11 and 12 show the phase error between channels with the compensation network acti- vated. The ADE7757 is phase compensated kHz ...
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ADE7757 Interfacing the ADE7757 to a Microcontroller for Energy Measurement The easiest way to interface the ADE7757 to a microcontroller is to use the CF high frequency output with the output frequency scaling set to 2048 F1, F2. This is ...
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Table I. F Frequency Selection 1– OSC Relation 0 0 OSC OSC OSC OSC/2 16 NOTES binary fraction of the internal oscillator frequency (OSC). ...
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ADE7757 Table V. F1 and F2 Frequency with Half-Scale AC Inputs Frequency on F1 and F2– (Hz)* CH1 and CH2 Half-Scale AC Input* 1– 0.86 0.051 F 0.044 1.72 0.051 F ...
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CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN REV. A OUTLINE DIMENSIONS 16-Lead Standard Small Outline ...
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ADE7757 Revision History Location 10/03—Data Sheet changed from REV REV. A. Changes to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . ...