EVAL-ADE7755ZEB Datasheet, PDF (9/20 Pages) Analog Devices – Energy Metering IC with Pulse Output

0.8
PF = 0.5
GAIN = 8
0.6
ON-CHIP REFERENCE
–40°C PF = 0.5
0.4
0.2
+25°C PF = 1
0
–0.2
+25°C PF = 0.5
–0.4
+85°C PF = 0.5
–0.6
–0.8
0.01
0.1
1
10
100
FULL-SCALE CURRENT (%)
Figure 10. Error as a % of Reading (Gain = 8)
0.4
0.2
–40°C PF = 0.5
0
+25°C PF = 1
–0.2
+25°C PF = 0.5
–0.4
+85°C PF = 0.5
–0.6
–0.8 ^{PF = 0.5}
GAIN = 16
ON-CHIP REFERENCE
–1.0
0.01
0.1
1
10
100
FULL-SCALE CURRENT (%)
Figure 11. Error as a % of Reading (Gain = 16)
0.4
PF = 1
0.3 GAIN = 2
EXTERNAL REFERENCE
0.2
0.1
+25°C
0
–40°C
–0.1
+85°C
–0.2
–0.3
–0.4
0.01
0.1
1
10
100
FULL-SCALE CURRENT (%)
Figure 12. Error as a % of Reading over Temperature with an External
Reference (Gain = 2)
ADE7755
0.4
PF = 1
0.3
GAIN = 16
EXTERNAL REFERENCE
0.2
–40°C
0.1
+25°C
0
–0.1
+85°C
–0.2
–0.3
–0.4
0.01
0.1
1
10
100
FULL-SCALE CURRENT (%)
Figure 13. Error as a % of Reading over Temperature with an External
Reference (Gain = 16)
0.8
0.6
PF = 1
0.4
0.2
PF = 0.5
0
–0.2
–0.4
–0.6
45
50
55
60
65
70
75
FREQUENCY (Hz)
Figure 14. Error as a % of Reading over Frequency
V_DD
40A TO
40mA
500µΩ
1.5mΩ
10mΩ
10µF
100nF
100nF
3
2
1
1kΩ
33nF
1kΩ
33nF
AV_DD AC/DC DV_DD
4 NC
F1 24
5 V1P _U1
F2 23
ADE7755 CF ²²
6 V1N
REVP 20
NC 19
10µF
U3
K7
1
4
2
3
K8
PS2501-1
33pF
220V
1kΩ
1MΩ
33nF
1kΩ ^33nF
7 V2N
8 V2P
CLKOUT 18
CLKIN 17
G0 16
G1 15
Y1
3.58MHz
33pF
GAIN
SELECT
V_DD
10kΩ
10µF
100nF
10 REF_IN/OUT
S0 14
S1 13
SCF 12
RESET AGND DGND
10nF
10nF
10nF
9
11
21
NC = NO CONNECT
V_DD
Figure 15. Test Circuit for Performance Curves
Rev. A | Page 9 of 20