Datasheet ADE7755 (Analog Devices) - 3

link to page 13 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4 link to page 4
Data Sheet ADE7755 SPECIFICATIONS
AVDD = DVDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, CLKIN = 3.58 MHz, TMIN to TMAX = −40°C to +85°C.
Table 1. Parameter Min Typ Max Unit Test Conditions/Comments
ACCURACY1, 2 Measurement Error1 on Channel 1 Channel 2 with full-scale signal (±660 mV), 25°C Gain = 1 0.1 % reading Over a dynamic range of 500 to 1 Gain = 2 0.1 % reading Over a dynamic range of 500 to 1 Gain = 8 0.1 % reading Over a dynamic range of 500 to 1 Gain = 16 0.1 % reading Over a dynamic range of 500 to 1 Phase Error1 Between Channels Line frequency = 45 Hz to 65 Hz V1 Phase Lead 37° (PF = 0.8 Capacitive) ±0.1 Degrees AC/DC = 0 and AC/DC = 1 V1 Phase Lag 60° (PF = 0.5 Inductive) ±0.1 Degrees AC/DC = 0 and AC/DC = 1 AC Power Supply Rejection1 AC/DC = 1, S0 = S1 = 1, G0 = G1 = 0 Output Frequency Variation (CF) 0.2 % reading V1 = 100 mV rms, V2 = 100 mV rms @ 50 Hz, ripple on AVDD of 200 mV rms @ 100 Hz DC Power Supply Rejection1 AC/DC = 1, S0 = S1 = 1, G0 = G1 = 0 Output Frequency Variation (CF) ±0.3 % reading V1 = 100 mV rms, V2 = 100 mV rms, AVDD = DVDD = 5 V ± 250 mV ANALOG INPUTS See the Analog Inputs section Maximum Signal Levels ±1 V V1P, V1N, V2N, and V2P to AGND Input Impedance (DC) 390 kΩ CLKIN = 3.58 MHz −3 dB Bandwidth 14 kHz CLKIN/256, CLKIN = 3.58 MHz ADC Offset Error1, 2 ±25 mV Gain = 11, 2 Gain Error1 ±7 % ideal External 2.5 V reference, gain = 1 V1 = 470 mV dc, V2 = 660 mV dc Gain Error Match1 ±0.2 % ideal External 2.5 V reference REFERENCE INPUT REFIN/OUT Input Voltage Range 2.7 V 2.5 V + 8% 2.3 V 2.5 V − 8% Input Impedance 3.2 kΩ Input Capacitance 10 pF ON-CHIP REFERENCE Nominal 2.5 V Reference Error ±200 mV Temperature Coefficient ±30 ppm/°C CLKIN Note all specifications for CLKIN of 3.58 MHz Input Clock Frequency 4 MHz 1 MHz LOGIC INPUTS3 SCF, S0, S1, AC/DC, RESET, G0, and G1 Input High Voltage, VINH 2.4 V DVDD = 5 V ± 5% Input Low Voltage, VINL 0.8 V DVDD = 5 V ± 5% Input Current, IIN ±3 µA Typically 10 nA, VIN = 0 V to DVDD Input Capacitance, CIN 10 pF LOGIC OUTPUTS3 F1 and F2 Output High Voltage, VOH 4.5 V ISOURCE = 10 mA, DVDD = 5 V Output Low Voltage, VOL 0.5 V ISINK = 10 mA, DVDD = 5 V CF and REVP Output High Voltage, VOH 4 V ISOURCE = 5 mA, DVDD = 5 V Output Low Voltage, VOL 0.5 V ISINK = 5 mA, DVDD = 5 V Rev. B | Page 3 of 20 Document Outline Features General Description Functional Block Diagram Revision History Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Power Factor Considerations Nonsinusoidal Voltage and Current Analog Inputs Channel 1 (Current Channel) Channel 2 (Voltage Channel) Typical Connection Diagrams Power Supply Monitor HPF and Offset Effects Digital-to-Frequency Conversion Interfacing the ADE7755 to a Microcontroller for Energy Measurement Power Measurement Considerations Transfer Function Frequency Outputs F1 and F2 Example 1 Example 2 Frequency Output CF Selecting a Frequency for an Energy Meter Application Frequency Outputs No Load Threshold Outline Dimensions Ordering Guide