AD1555/AD1556
20
18
16
14
12
10
8
6
4
2
0
–128
–120
–113
–105
–98
–90
CMRR – dB
TPC 7. Common-Mode Rejection Distribution (272 Units)
0.20
0.15
0.10
0.05
0.00
–0.05
–0.10
–0.15
–0.20
0
50
100
150
200
250
FREQUENCY – Hz
TPC 10. AD1556 Pass Band Ripple, FO = 500 Hz (2 ms)
120
G = 8.5
115
110
G = 34
105
G = 2.5
100
G = 128
G=1
95
90
0 100 200 300 400 500 600 700 800 900 1000
FREQUENCY – Hz
TPC 8. Common-Mode Rejection vs. Frequency
0.20
0.15
0.10
0.05
0.00
–0.05
–0.10
–0.15
–0.20
0
100
200
300
400
500
FREQUENCY – Hz
TPC 11. AD1556 Pass Band Ripple, FO = 1 kHz (1 ms)
0.20
0.15
0.10
0.05
0.00
–0.05
–0.10
–0.15
–0.20
0
25
50
75
100
125
FREQUENCY – Hz
TPC 9. AD1556 Pass Band Ripple, FO = 250 Hz (4 ms)
0.20
0.15
0.10
0.05
0.00
–0.05
–0.10
–0.15
–0.20
0
200
400
600
800
1000
FREQUENCY – Hz
TPC 12. AD1556 Pass Band Ripple, FO = 2 kHz (1/2 ms)
–14–
REV. B