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Data Sheet
TEST CIRCUITS
V DD
ADE7758
CURRENT
TRANSFORMER
I
10μF
1k ?
100nF
4 3 17
AVDD DVDD VARCF APCF 1
5 IAP
825 ?
PS2501-1
1 4
RB
33nF
1k ?
33nF
6
IAN
ADE7758
CLKOUT 20
22pF
2
3
TO FREQ.
COUNTER
SAME AS
I AP , I AN
7
8
IBP
IBN
CLKIN 19
10MHz
22pF
SAME AS
I AP , I AN
9
10
ICP
ICN
DOUT 24
SCLK 23
220V
1M ?
1k ?
33nF
16
VAP
CS 21
DIN 22
TO SPI BUS
SAME AS V AP
15
VBP
IRQ 18
SAME AS V AP
CT TURN RATIO 1800:1
CHANNEL 2 GAIN = +1
14
VCP
1k ?
VN
13
REF IN/OUT 12
AGND DGND
11
2
100nF
10μF
CHANNEL 1 GAIN
1
2
4
8
R B
10 ?
5 ?
2.5 ?
1.25 ?
33nF
Figure 34. Test Circuit for Integrator Off
V DD
di/dt SENSOR
I
1k ?
10μF
1k ?
100nF
4 3 17
AVDD DVDD VARCF APCF 1
5 IAP
825 ?
PS2501-1
1 4
33nF
1k ?
33nF
33nF
1k ?
33nF
6
IAN
ADE7758
CLKOUT 20
22pF
2
3
TO FREQ.
COUNTER
SAME AS
I AP , I AN
7
8
IBP
IBN
CLKIN 19
10MHz
22pF
SAME AS
I AP , I AN
9
10
ICP
ICN
DOUT 24
SCLK 23
220V
1M ?
1k ?
33nF
16
VAP
CS 21
DIN 22
TO SPI BUS
SAME AS V AP
15
VBP
IRQ 18
SAME AS V AP
CHANNEL 1 GAIN = +8
CHANNEL 2 GAIN = +1
14
VCP
1k ?
33nF
VN
13
REF IN/OUT 12
AGND DGND
11
2
100nF
10μF
Figure 35. Test Circuit for Integrator On
Rev. E | Page 17 of 72
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