Datasheet ADE7753 (Analog Devices) - 7

ADE7753 ABSOLUTE MAXIMUM RATINGS
T A = 25°C, unless otherwise noted.
Table 3.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress AVDD to AGND –0.3 V to +7 V rating only; functional operation of the device at these or any DVDD to DGND –0.3 V to +7 V other conditions above those indicated in the operational DVDD to AVDD –0.3 V to +0.3 V section of this specification is not implied. Exposure to absolute Analog Input Voltage to AGND, –6 V to +6 V maximum rating conditions for extended periods may affect V1P, V1N, V2P, and V2N device reliability. Reference Input Voltage to AGND –0.3 V to AVDD + 0.3 V Digital Input Voltage to DGND –0.3 V to DVDD + 0.3 V Digital Output Voltage to DGND –0.3 V to DVDD + 0.3 V Operating Temperature Range Industrial –40°C to +85°C Storage Temperature Range –65°C to +150°C Junction Temperature 150°C 20-Lead SSOP, Power Dissipation 450 mW θJA Thermal Impedance 112°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. C | Page 7 of 60 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TERMINOLOGY PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ANALOG INPUTS di/dt CURRENT SENSOR AND DIGITAL INTEGRATOR ZERO-CROSSING DETECTION Zero-Crossing Timeout PERIOD MEASUREMENT POWER SUPPLY MONITOR LINE VOLTAGE SAG DETECTION Sag Level Set PEAK DETECTION Peak Level Set Peak Level Record ADE7753 INTERRUPTS Using the ADE7753 Interrupts with an MCU Interrupt Timing TEMPERATURE MEASUREMENT ADE7753 ANALOG-TO-DIGITAL CONVERSION Antialias Filter ADC Transfer Function ADE7753 Reference Circuit CHANNEL 1 ADC Channel 1 Sampling Channel 1 RMS Calculation Channel 1 RMS Offset Compensation CHANNEL 2 ADC Channel 2 Sampling Channel 2 RMS Calculation Channel 2 RMS Offset Compensation PHASE COMPENSATION ACTIVE POWER CALCULATION ENERGY CALCULATION Integration Time under Steady Load POWER OFFSET CALIBRATION ENERGY-TO-FREQUENCY CONVERSION LINE CYCLE ENERGY ACCUMULATION MODE POSITIVE-ONLY ACCUMULATION MODE NO-LOAD THRESHOLD REACTIVE POWER CALCULATION SIGN OF REACTIVE POWER CALCULATION APPARENT POWER CALCULATION Apparent Power Offset Calibration APPARENT ENERGY CALCULATION Integration Times under Steady Load LINE APPARENT ENERGY ACCUMULATION ENERGIES SCALING CALIBRATING AN ENERGY METER BASED ON THE ADE7753 Watt Gain Calibrating Watt Gain Using a Reference Meter Example Calibrating Watt Gain Using an Accurate Source Example Watt Offset Calibrating Watt Offset Using a Reference Meter Example Calibrating Watt Offset with an Accurate Source Example Phase Calibration Calibrating Phase Using a Reference Meter Example Calibrating Phase with an Accurate Source Example VRMS and IRMS Calibration Apparent Energy Reactive Energy CLKIN FREQUENCY SUSPENDING ADE7753 FUNCTIONALITY CHECKSUM REGISTER ADE7753 SERIAL INTERFACE ADE7753 Serial Write Operation ADE7753 Serial Read Operation ADE7753 REGISTERS ADE7753 REGISTER DESCRIPTIONS COMMUNICATIONS REGISTER MODE REGISTER (0x09) INTERRUPT STATUS REGISTER (0x0B), RESET INTERRUPT STATUS REGISTER (0x0C), INTERRUPT ENABLE REGISTER (0x0A) CH1OS REGISTER (0x0D) OUTLINE DIMENSIONS ORDERING GUIDE