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ADE9078ACPZ-RL Datasheet(PDF) 3 Page - Analog Devices |
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ADE9078ACPZ-RL Datasheet(HTML) 3 Page - Analog Devices |
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3 / 108 page  ADE9078 Data Sheet Rev. 0 | Page 2 of 107 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 3 Specifications..................................................................................... 4 Timing Characteristics ................................................................ 7 Absolute Maximum Ratings............................................................ 9 Thermal Resistance ...................................................................... 9 ESD Caution.................................................................................. 9 Pin Configuration and Function Descriptions........................... 10 Typical Performance Characteristics ........................................... 12 Total Energy Linearity over Supply and Temperature........... 12 Fundamental Energy Linearity with Fifth Harmonic over Supply and Temperature............................................................ 13 Total Energy Error over Frequency.......................................... 14 RMS Linearity over Temperature and RMS Error over Frequency .................................................................................... 15 Energy Linearity Repeatability ................................................. 16 Total Energy and RMS Linearity with Integrator On............ 17 Total Energy Error over Frequency with Integrator On ....... 18 Test Circuit ...................................................................................... 19 Terminology .................................................................................... 20 Theory Of Operation ..................................................................... 22 ADC ............................................................................................. 22 Crystal Oscillator/External Clock ............................................ 24 Power Management.................................................................... 25 Measurements (Normal Mode) ................................................ 27 Measurements (PSM1) .............................................................. 45 Measurements (PSM2) .............................................................. 54 Key Features .................................................................................... 55 Flexible Waveform Buffer with Resampling ........................... 55 Multipoint Phase/Gain Calibration ......................................... 55 RMS of Sum of Instantaneous Currents Measurement......... 55 Tamper Modes ............................................................................ 55 Power Factor................................................................................ 55 Zero-Crossing Timeout Detection........................................... 55 Line Period Measurement ......................................................... 55 Angle Measurement ................................................................... 55 Phase Sequence Error Detection.............................................. 55 Quick Start....................................................................................... 56 Applications Information .............................................................. 57 Non-Blondel Compliant Meters............................................... 58 Applying the ADE9078 to a 4-Wire Wye Service ...................... 58 Applying the ADE9078 to a 3-Wire Delta Service................. 59 Applying the ADE9078 to a Non-Blondel Compliant, 4-Wire Wye Service ................................................................................. 60 Applying the ADE9078 to a Non-Blondel Compliant, 4-Wire Delta Service ............................................................................... 60 Service Type Summary .............................................................. 60 Accessing On-Chip Data ............................................................... 62 SPI Protocol Overview .............................................................. 62 SPI Write...................................................................................... 63 SPI Read....................................................................................... 63 SPI Burst Read ............................................................................ 63 SPI Protocol CRC ....................................................................... 64 Additional Communication Verification Registers ............... 64 CRC of Configuration Registers............................................... 65 Configuration Lock.................................................................... 65 Waveform Buffer ............................................................................ 66 Fixed Data Rate Waveforms...................................................... 67 Fixed Data Rate Waveforms Filling and Trigger-Based Modes.. 68 Resampled Waveforms .............................................................. 70 Configuring the Waveform Buffer........................................... 70 Burst Read Waveform Buffer Samples from SPI.................... 71 Interrupts/Events............................................................................ 74 Interrupts (IRQ0 and IRQ1)..................................................... 74 EVENT ........................................................................................ 74 Status Bits in Additional Registers ........................................... 74 Troubleshooting.............................................................................. 75 SPI Does Not Work .................................................................... 75 PSM2_CFG Register Value Is Not Retained When Going from PSM2 or PSM3 to PSM0.................................................. 75 Register Information...................................................................... 76 Register Details ........................................................................... 88 Outline Dimensions ..................................................................... 107 Ordering Guide ........................................................................ 107 |
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