Datasheet
Table Of Contents
- FEATURES
- GENERAL DESCRIPTION
- FUNCTIONAL BLOCK DIAGRAM
- SPECIFICATIONS
- TIMING CHARACTERISTICS
- ABSOLUTE MAXIMUM RATINGS
- ORDERING GUIDE
- PIN CONFIGURATION
- PIN FUNCTION DESCRIPTIONS
- Typical Performance Characteristics
- TERMINOLOGY
- POWER SUPPLY MONITOR
- ANALOG INPUTS
- ANALOG-TO-DIGITAL CONVERSION
- CURRENT CHANNEL ADC
- VOLTAGE CHANNEL ADC
- ZERO-CROSSING DETECTION
- PERIOD MEASUREMENT
- LINE VOLTAGE SAG DETECTION
- PEAK DETECTION
- TEMPERATURE MEASUREMENT
- PHASE COMPENSATION
- ROOT MEAN SQUARE MEASUREMENT
- ACTIVE POWER CALCULATION
- TOTAL ACTIVE POWER CALCULATION
- ENERGY CALCULATION
- LINE ENERGY ACCUMULATION
- REACTIVE POWER CALCULATION
- TOTAL REACTIVE POWER CALCULATION
- APPARENT POWER CALCULATION
- TOTAL APPARENT POWER CALCULATION
- APPARENT ENERGY CALCULATION
- LINE APPARENT ENERGY ACCUMULATION
- ENERGIES SCALING
- CHECK SUM REGISTER
- SERIAL INTERFACE
- INTERRUPTS
- ACCESSING THE ADE7754 ON-CHIP REGISTERS
- OUTLINE DIMENSIONS
REV. 0 –3–
ADE7754–SPECIFICATIONS
(AV
DD
= DV
DD
= 5 V
5%, AGND = DGND = 0 V, On-Chip Reference, CLKIN = 10 MHz,
T
MIN
to T
MAX
= –40C to +85C, unless otherwise noted.)
Parameters Spec Unit Test Conditions/Comments
ACCURACY
Active Power Measurement Error 0.1 % typ Over a dynamic range 1000 to 1
Phase Error between Channels
(PF = 0.8 Capacitive) ±0.05 º max Phase lead 37º
(PF = 0.5 Inductive) ±0.05 º max Phase lag 60º
AC Power Supply Rejection
1
Output Frequency Variation 0.01 % typ IAP/N = IBP/N = ICP/N = ±100 mV rms
DC Power Supply Rejection
1
Output Frequency Variation 0.01 % typ IAP/N = IBP/N = ICP/N = ±100 mV rms
Active Power Measurement Bandwidth 14 kHz typ
V
rms
Measurement Error 0.5 % typ Over dynamic range of 20 to 1
V
rms
Measurement Bandwidth 260 Hz typ
I
rms
Measurement Error 2 % typ Over dynamic range of 100 to 1
I
rms
Measurement Bandwidth 14 kHz
ANALOG INPUTS
Maximum Signal Levels ±500 mV peak max Differential input: V
AP
–V
N
,
V
BP
–V
N
,
V
CP
–V
N
,
I
AP
–I
AN
, I
BP
–I
BN
,
I
CP
–I
CN
Input Impedance (DC) 370 kΩ min
Bandwidth (–3 dB) 14 kHz typ
ADC Offset Error
1
25 mV max Uncalibrated error; See Terminology for details.
Gain Error
1
±8% typ External 2.5 V reference
Gain Error Match
1
±3% typ External 2.5 V reference
REFERENCE INPUT
REF
IN/OUT
Input Voltage Range 2.6 V max 2.4 V + 8%
2.2 V min 2.4 V – 8%
Input Impedance 3.7 k max
Input Capacitance 10 pF max
TEMPERATURE SENSOR ±4ºCCalibrated dc offset
ON-CHIP REFERENCE
Reference Error ±200 mV max
Temperature Coefficient 30 ppm/ºC typ
CLKIN
Input Clock Frequency 10 MHz typ
LOGIC INPUTS
RESET, DIN, SCLK, CLKIN, and CS
Input High Voltage, V
INH
2.4 V min DV
DD
= 5 V ± 5%
Input Low Voltage, V
INL
0.8 V max DV
DD
= 5 V ± 5%
Input Current, I
IN
±3 A max Typical 10 nA, V
IN
= 0 V to DV
DD
Input Capacitance, C
IN
10 pF max
LOGIC OUTPUTS
CF, IRQ, DOUT, and CLKOUT
Output High Voltage, V
OH
4V min DV
DD
= 5 V ± 5%
Output Low Voltage, V
OL
1V max DV
DD
= 5 V ± 5%
POWER SUPPLY For specified performance
AV
DD
4.75 V min 5 V – 5%
5.25 V max 5 V + 5%
DV
DD
4.75 V min 5 V – 5%
5.25 V max 5 V + 5%
AI
DD
7 mA max At 5.25 V
DI
DD
18 mA max At 5.25 V
NOTES
1
See Terminology section for explanation of specifications.
2
See plots in the Typical Performance Characteristics section.
Specifications subject to change without notice.