ADE7760ARSRL Analog Devices Inc, ADE7760ARSRL Datasheet
ADE7760ARSRL
Specifications of ADE7760ARSRL
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ADE7760ARSRL Summary of contents
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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 ...
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ADE7760 TABLE OF CONTENTS Specifications..................................................................................... 3 Timing Characteristics..................................................................... 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Terminology ...................................................................................... 7 Pin Configuration and Function Descriptions............................. 8 Typical Performance Characteristics ........................................... 10 Operation......................................................................................... 11 Power Supply Monitor ............................................................... 11 Analog Inputs.............................................................................. 11 ...
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SPECIFICATIONS ± 5%, AGND = DGND = 0 V, on-chip reference, on-chip oscillator Table 1. Parameter 1 ACCURACY 2 Measurement Error Phase Error between Channels (PF = 0.8 Capacitive) (PF = 0.5 Inductive) 2 ...
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ADE7760 Parameter 4 LOGIC OUTPUTS CF, REVP, and FAULT Output High Voltage Output Low Voltage and F2 Output High Voltage Output Low Voltage POWER SUPPLY See ...
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TIMING CHARACTERISTICS ± 5%, AGND = DGND = 0 V, on-chip reference, on-chip oscillator Sample tested during initial release and after any redesign or process change that may affect this parameter. See Figure 2. ...
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ADE7760 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to AGND DD Analog Input Voltage to AGND 1AP 1BP Reference Input Voltage ...
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TERMINOLOGY Measurement Error The error associated with the energy measurement made by the ADE7760 is defined by the following formula: = Percentage Error ⎛ − Energy registered by ADE 7760 True ⎜ ⎜ True Energy ⎝ Phase Error between Channels ...
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ADE7760 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 V Power Supply. This pin provides the supply voltage for the digital circuitry in the ADE7760. The supply DD voltage should be maintained at ...
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Pin No. Mnemonic Description 15 FAULT This logic output goes active high when a fault condition occurs. A fault is defined as a condition under which the signals on V condition is no longer detected. See the Fault Detection section. ...
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ADE7760 TYPICAL PERFORMANCE CHARACTERISTICS 1 ON-CHIP REFERENCE 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0.1 1.0 10.0 CURRENT (% of Full Scale) Figure 4. Active Power Error as a Percentage of Reading with Internal ...
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OPERATION POWER SUPPLY MONITOR The ADE7760 contains an on-chip power supply monitor. The power supply ( continuously monitored by the ADE7760 the supply is less than 4 V ± 5%, the ADE7760 goes into an inactive ...
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ADE7760 ±660mV AGND RA RB Figure 12. Typical Connection for Channel 2 INTERNAL OSCILLATOR The nominal internal oscillator frequency is ...
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ANTIALIAS FILTER (RC) DIGITAL FILTER SAMPLING FREQUENCY SIGNAL SHAPED NOISE NOISE 0 1kHz 225kHz FREQUENCY (Hz) HIGH RESOLUTION SIGNAL OUTPUT FROM DIGITAL LFP NOISE 0 1kHz 225kHz FREQUENCY (Hz) Figure 15. Noise Reduction Due to Oversampling and Noise Shaping in ...
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ADE7760 Power Factor Considerations The method used to extract the active power information from the instantaneous power signal (by low-pass filtering) is still valid even when the voltage and current signals are not in phase. Figure 18 displays the unity ...
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The HPF in Channel 1 has an associated phase response that is compensated for on-chip. Figure 20 and Figure 21 show the phase error between channels with the compensation network activated. The ADE7760 is phase compensated kHz ...
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ADE7760 The output frequency on CF can 2048 times higher than the frequency on F1 and F2. This higher output frequency is generated by accumulating the instantaneous active power signal over a much shorter time while converting ...
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Note that if the on-chip reference is used, actual output frequencies may vary from device to device due to reference tolerance of ±8%. × × − Frequency 1 ...
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ADE7760 Calibration Concerns Typically, when a meter is being calibrated, the voltage and current circuits are separated as shown in Figure 25. This means that current passes through only the phase or neutral circuit. Figure 25 shows current being passed ...
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APPLICATIONS INTERFACING TO A MICROCONTROLLER FOR ENERGY MEASUREMENT The easiest way to interface the ADE7760 to a microcontroller is to use the CF high frequency output with the output fre- quency scaling set to 2048 × F1, F2. This is ...
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ADE7760 Table 9. F1 and F2 Frequency with Half-Scale AC Inputs Frequency on F1 and F2, CH1 and CH2 Half-Scale AC Inputs 1 1.72 0.085 3.44 0. 6.86 0.34 ...
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... OUTLINE DIMENSIONS 0.05 MIN COPLANARITY ORDERING GUIDE Model Temperature Range ADE7760ARS –40°C to +85°C ADE7760ARSRL –40°C to +85°C 7.50 7.20 6. 5.60 5.30 8.20 5.00 7.80 1 7.40 10 1.85 1.75 2.00 MAX 1.65 0.25 0.09 0.65 0.38 BSC 0.22 SEATING PLANE ...
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ADE7760 NOTES Rev Page ...
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NOTES Rev Page ADE7760 ...
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ADE7760 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04434–0–1/04(0) Rev Page ...