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ADE7758 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Poly Phase Multifunction Energy Metering IC - Analog Devices

भाग संख्या ADE7758
समारोह Poly Phase Multifunction Energy Metering IC
मैन्युफैक्चरर्स Analog Devices 
लोगो Analog Devices लोगो 
पूर्व दर्शन
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<?=ADE7758?> डेटा पत्रक पीडीएफ

ADE7758 pdf
ADE7758
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1 
General Description ......................................................................... 1 
Functional Block Diagram .............................................................. 1 
General Description ......................................................................... 4 
Specifications..................................................................................... 5 
Timing Characteristics ................................................................ 6 
Timing Diagrams.............................................................................. 7 
Absolute Maximum Ratings............................................................ 8 
ESD Caution.................................................................................. 8 
Pin Configuration and Function Descriptions............................. 9 
Terminology .................................................................................... 11 
Typical Performance Characteristics ........................................... 12 
Test Circuits..................................................................................... 17 
Theory of Operation ...................................................................... 18 
Antialiasing Filter ....................................................................... 18 
Analog Inputs.............................................................................. 18 
Current Channel ADC............................................................... 19 
di/dt Current Sensor and Digital Integrator............................... 20 
Peak Current Detection ............................................................. 21 
Overcurrent Detection Interrupt ............................................. 21 
Voltage Channel ADC ............................................................... 22 
Zero-Crossing Detection........................................................... 23 
Phase Compensation.................................................................. 23 
Period Measurement .................................................................. 25 
Line Voltage SAG Detection ..................................................... 25 
SAG Level Set.............................................................................. 26 
Peak Voltage Detection.............................................................. 26 
Phase Sequence Detection......................................................... 26 
Power-Supply Monitor............................................................... 27 
Reference Circuit ........................................................................ 27 
Temperature Measurement ....................................................... 27 
Root Mean Square Measurement............................................. 28 
Active Power Calculation .......................................................... 30 
Reactive Power Calculation ...................................................... 35 
Apparent Power Calculation..................................................... 39 
Energy Registers Scaling ........................................................... 41 
Waveform Sampling Mode ....................................................... 41 
Calibration................................................................................... 42 
Checksum Register..................................................................... 55 
Interrupts..................................................................................... 55 
Using the Interrupts with an MCU.......................................... 56 
Interrupt Timing ........................................................................ 56 
Serial Interface ............................................................................ 56 
Serial Write Operation............................................................... 57 
Serial Read Operation................................................................ 59 
Accessing the On-Chip Registers............................................. 59 
Registers........................................................................................... 60 
Communications Register......................................................... 60 
Operational Mode Register (0x13) .......................................... 64 
Measurement Mode Register (0x14) ....................................... 64 
Waveform Mode Register (0x15) ............................................. 65 
Computational Mode Register (0x16)..................................... 66 
Line Cycle Accumulation Mode Register (0x17) ................... 67 
Interrupt Mask Register (0x18) ................................................ 68 
Interrupt Status Register (0x19)/Reset Interrupt Status
Register (0x1A)........................................................................... 69 
Outline Dimensions ....................................................................... 70 
Ordering Guide .......................................................................... 70 
Revision History
10/11—Rev. D to Rev. E
Changes to Figure 1.......................................................................... 1
Changes to Figure 41...................................................................... 19
Changes to Figure 60...................................................................... 27
Added Figure 61; Renumbered Sequentially .............................. 27
Changes to Phase Sequence Detection Section .......................... 27
Changes to Power-Supply Monitor Section ................................ 27
Changes to Figure 62...................................................................... 28
Changes to Figure 67...................................................................... 32
Changes to Figure 68...................................................................... 32
Changes to Equation 25................................................................. 34
Changes to Figure 69...................................................................... 34
Changes to Table 17 ....................................................................... 62
Change to Table 18 ......................................................................... 64
Changes to Table 24 ....................................................................... 69
Changes to Ordering Guide .......................................................... 70
10/08—Rev. C to Rev. D
Changes to Figure 1...........................................................................1
Changes to Phase Sequence Detection Section and Figure 60. 27
Rev. E | Page 2 of 72

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