Datasheet

AD8428 Data Sheet
Rev. A | Page 8 of 20
15
10
5
0
–15
–10
–5
–15 –10 –5 0 5 10 15
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
09731-009
V
S
= ±15V
V
S
= ±12V
V
S
= ±5V
Figure 9. Input Common-Mode Voltage vs. Output Voltage,
V
S
= ±5 V, V
S
= ±12 V, V
S
= ±15 V
18
0
–14 14
INPUT BIAS CURRENT (nA)
COMMON-MODE VOLTAGE (V)
09731-010
2
4
6
8
10
12
14
16
–12–10–8–6–4–2024681012
V
CM
= –11.8V
V
CM
= +12V
Figure 10. Input Bias Current vs. Common-Mode Voltage,
V
S
= ±15 V
140
0
0.1 1 1M100k10k1k10010
PSRR (dB)
FREQUENCY (Hz)
09731-011
20
40
60
80
100
120
+PSRR
–PSRR
Figure 11. PSRR vs. Frequency
72
–12
100 1k 10k 100k 100M1M 10M
GAIN (dB)
FREQUENCY (Hz)
09731-014
–6
0
6
12
18
24
30
36
42
48
54
60
66
Figure 12. Gain vs. Frequency
170
80
1 10 100 1k 10k 100k 1M
CMRR (dB)
FREQUENCY (Hz) 09731-015
90
100
GAIN = 2000
110
120
130
140
150
160
Figure 13. CMRR vs. Frequency
120
0
1 10 100 1k 10k 100k 1M
CMRR (dB)
FREQUENCY (Hz) 09731-016
10
20
30
40
50
60
70
80
90
100
110
GAIN = 2000
Figure 14. CMRR vs. Frequency, 1 kΩ Source Imbalance