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參數(shù)資料
| 型號： | EVAL-AD7755EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Energy Metering IC with Pulse Output |
| 中文描述： | 電能計(jì)量IC輸出脈沖 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 250K |
| 代理商： | EVAL-AD7755EB |
REV. B
AD7755
–8–
Amps
0.01
0.1
%
0.0
1
10
100
–
40 C PF = 0.5
+25 C PF = 1
+25 C PF = 0.5
+85 C PF = 0.5
0.2
0.4
0.6
0.8
–
0.8
–
0.6
–
0.4
–
0.2
PF = 0.5
GAIN = 8
ON-CHIP REFERENCE
Figure 8. Error as a % of Reading (Gain = 8)
Amps
0.01
0.1
%
–
0.8
–
0.6
–
0.2
–
0.4
0.0
0.2
0.4
1
10
100
–
40 C PF = 0.5
–
1.0
+25 C PF = 1
+25 C PF = 0.5
+85 C PF = 0.5
PF = 0.5
GAIN = 16
ON-CHIP REFERENCE
Figure 9. Error as a % of Reading (Gain = 16)
Amps
–
0.4
0.01
0.1
%
–
0.2
–
0.1
0.0
1
10
100
–
40 C
PF = 1
GAIN = 2
EXTERNAL REFERENCE
+25 C
+85 C
–
0.3
0.4
0.2
0.1
0.3
Figure 10. Error as a % of Reading over Temperature with
an External Reference (Gain = 2)
Amps
0.01
0.1
%
–
0.4
–
0.3
–
0.2
–
0.1
0.0
0.1
0.2
0.3
0.4
1
10
100
+25 C
+85 C
–
40 C
PF = 1
GAIN = 16
EXTERNAL REFERENCE
Figure 11. Error as a % of Reading over Temperature with
an External Reference (Gain = 16)
FREQUENCY
–
Hz
%
0.8
0.6
0.4
0.2
0.0
–
0.2
–
0.4
–
0.6
45
50
55
60
65
70
75
PF = 1
PF = 0.5
Figure 12. Error as a % of Reading over Frequency
AVDD AC/
DC
AVDD
NC
U1
AD7755
V1P
V1N
REF
IN/OUT
33nF
1k
100nF
33nF
1k
V2N
33nF
33nF
V2P
100nF
10 F
1k
1k
1M
10 F
100nF
10 F
V
DD
RESET
AGND DGND
F1
F2
CF
REVP
NC
CLKOUT
CLKIN
G0
G1
S0
S1
SCF
Y1
3.58MHz
10nF
10nF
10nF
33pF
33pF
500
1.5m
10m
40A TO
40mA
220V
GAIN
SELECT
U3
PS2501-1
K7
K8
10k
V
DD
V
DD
NC = NO CONNECT
Figure 13. Test Circuit for Performance Curves
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