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ADE7854/ADE7858/ADE7868/ADE7878
Data Sheet
Parameter 1, 2
Min
Typ
Max
Unit
Test Conditions/Comments
MEAN ABSOLUTE VALUE (MAV)
MEASUREMENT ( ADE7868 AND
I mav Measurement Bandwidth (PSM1
Mode)
260
Hz
I mav Measurement Error (PSM1 Mode)
0.5
%
Over a dynamic range of 100 to 1, PGA = 1, 2, 4, 8
ANALOG INPUTS
Maximum Signal Levels
±500
mV peak
PGA = 1, differential inputs between the
following pins: IAP and IAN, IBP and IBN, ICP
and ICN; single-ended inputs between the
following pins: VAP and VN, VBP and VN, VCP,
and VN
Input Impedance (DC)
IAP, IAN, IBP, IBN, ICP, ICN, VAP, VBP,
and VCP Pins
VN Pin
400
130
k?
k?
ADC Offset
?24
mV
PGA = 1, uncalibrated error, see the Terminology
section
Gain Error
WAVEFORM SAMPLING
Current and Voltage Channels
Signal-to-Noise Ratio, SNR
Signal-to-Noise-and-Distortion Ratio,
SINAD
Bandwidth (?3 dB)
±4
74
74
2
%
dB
dB
kHz
External 1.2 V reference
Sampling CLKIN/2048, 16.384 MHz/2048 = 8 kSPS
See the Waveform Sampling Mode section
PGA = 1, fundamental frequency: 45 Hz to
65 Hz, see the Terminology section
PGA = 1; fundamental frequency: 45 Hz to
65 Hz, see the Terminology section
TIME INTERVAL BETWEEN PHASES
Measurement Error
0.3
Degrees
Line frequency = 45 Hz to 65 Hz, HPF on
CF1, CF2, CF3 PULSE OUTPUTS
Maximum Output Frequency
Duty Cycle
Active Low Pulse Width
Jitter
8
50
(1 + 1/CFDEN)
× 50%
80
0.04
kHz
%
ms
%
WTHR = VARTHR = VATHR = PMAX = 33,516,139
If CF1, CF2, or CF3 frequency > 6.25 Hz and
CFDEN is even and > 1
If CF1, CF2, or CF3 frequency > 6.25 Hz and
CFDEN is odd and > 1
If CF1, CF2, or CF3 frequency < 6.25 Hz
For CF1, CF2, or CF3 frequency = 1 Hz and
nominal phase currents are larger than 10% of
full scale
REFERENCE INPUT
REF IN/OUT Input Voltage Range
Input Capacitance
1.1
1.3
10
V
pF
Minimum = 1.2 V ? 8%; maximum = 1.2 V + 8%
ON-CHIP REFERENCE
PSM0 and PSM1 Modes
Nominal 1.2 V at the REF IN/OUT pin at T A = 25°C
Temperature Coefficient
?50
±5
+50
ppm/°C
Drift across the entire temperature range of ?40°C
to +85°C is calculated with reference to 25°C;
see the Reference Circuit section for more details
CLKIN
All specifications CLKIN of 16.384 MHz. See the
Input Clock Frequency
16.22
16.384
16.55
MHz
LOGIC INPUTS—MOSI/SDA, SCLK/SCL, SS,
RESET, PM0, AND PM1
Input High Voltage, V INH
Input Low Voltage, V INL
Input Current, I IN
Input Capacitance, C IN
2.0
10
0.8
?8.7
3
V
V
μA
μA
pF
VDD = 3.3 V ± 10%
VDD = 3.3 V ± 10%
Input = 0 V, VDD = 3.3 V
Input = VDD = 3.3 V
Rev. H | Page 10 of 100
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