ADE7758 Analog Devices, ADE7758 Datasheet - Page 5

• Manufacturer Part Number: ADE7758
• Description: Poly Phase Multifunction Energy Metering IC with Per Phase Information
• Manufacturer: Analog Devices

SPECIFICATIONS
AVDD = DVDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, CLKIN = 10 MHz XTAL, T
Table 1.
Parameter
ACCURACY
Active Energy Measurement Error
(per Phase)
Active Power Measurement Bandwidth
IRMS Measurement Error
IRMS Measurement Bandwidth
VRMS Measurement Error
VRMS Measurement Bandwidth
ANALOG INPUTS
WAVEFORM SAMPLING
Current Channels
Voltage Channels
REFERENCE INPUT
ON-CHIP REFERENCE
CLKIN
LOGIC INPUTS
Phase Error between Channels
(PF = 0.8 Capacitive)
(PF = 0.5 Inductive)
AC Power Supply Rejection
DC Power Supply Rejection
Maximum Signal Levels
Input Impedance (DC)
ADC Offset Error
Gain Error
Signal-to-Noise Plus Distortion
Bandwidth (−3 dB)
Signal-to-Noise Plus Distortion
Bandwidth (−3 dB)
REF
Input Capacitance
Reference Error
Current Source
Output Impedance
Temperature Coefficient
Input Clock Frequency
DIN, SCLK, CLKIN, and CS
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output Frequency Variation
Output Frequency Variation
IN/OUT
Input Voltage Range
1, 3
IN
3
IN
INL
INH
1, 2
1
1
Specification
0.1
±0.05
±0.05
0.01
0.01
14
0.5
14
0.5
260
±500
380
30
±6
62
14
62
180
2.7
2.3
10
±200
6
4
30
15
5
2.4
0.8
±3
10
Rev. A | Page 5 of 68
Unit
% typ
°max
°max
% typ
% typ
kHz
% typ
kHz
% typ
Hz
mV max
kΩ min
mV max
% typ
dB typ
kHz
dB typ
Hz
V max
V min
pF max
mV max
µA max
kΩ min
ppm/°C typ
MHz max
MHz min
V min
V max
µA max
pF max
Sampling CLKIN/128, 10 MHz/128 = 78.1 kSPS
Test Conditions/Comments
Over a dynamic range of 1000 to 1
Line frequency = 45 Hz to 65 Hz, HPF on
Phase lead 37°
Phase lag 60°
AVDD = DVDD = 5 V + 175 mV rms/120 Hz
V1P = V2P = V3P = 100 mV rms
AVDD = DVDD = 5 V ± 250 mV dc
V1P = V2P = V3P = 100 mV rms
Over a dynamic range of 500:1
Over a dynamic range of 20:1
See the Analog Inputs section
Differential input
Uncalibrated error, see the Terminology section
External 2.5 V reference
See the Current Channel ADC section
See the Voltage Channel ADC section
2.5 V + 8%
2.5 V – 8%
Nominal 2.4 V at REF
All specifications CLKIN of 10 MHz
DVDD = 5 V ± 5%
DVDD = 5 V ± 5%
Typical 10 nA, V
IN
MIN
= 0 V to DVDD
to T
IN/OUT
MAX
pin
= −40°C to +85°C.
ADE7758