AD8421 AD [Analog Devices], AD8421 Datasheet - Page 12

• Manufacturer Part Number: AD8421
• Description: 3 nV/?Hz, Low Power
• Manufacturer: AD [Analog Devices]

AD8421
Figure 16. Input Overvoltage Performance; +V
Figure 17. Input Overvoltage Performance; V
–0.5
–1.0
–1.5
–2.0
–2.5
–10
–20
–30
–40
–10
–20
–30
2.5
2.0
1.5
1.0
0.5
40
30
20
10
30
20
10
0
0
0
Figure 18. Input Bias Current vs. Common-Mode Voltage
–35
–25
–12
V
G = 100
V
G = 100
–30 –25 –20 –15 –10 –5
–10 –8
S
S
–20
= 5V
= ±15V
–15
–6
COMMON-MODE VOLTAGE (V)
–10
–4
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
–2
–5
0
0
0
5
2
10 15 20 25 30 35
5
4
S
= 5 V, −V
10
6
S
= ±15 V, G = 100
8
15
10
S
= 0 V, G = 100
20
12
40
25
14
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160
140
120
100
160
140
120
100
80
60
40
20
80
60
40
20
–10
–20
–30
0
0
70
60
50
40
30
20
10
0.1
0.1
0
100
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
1
1
Figure 20. Negative PSRR vs. Frequency
Figure 19. Positive PSRR vs. Frequency
1k
Figure 21. Gain vs. Frequency
10
10
FREQUENCY (Hz)
FREQUENCY (Hz)
10k
FREQUENCY (Hz)
100
100
100k
1k
1k
10k
10k
1M
Data Sheet
100k
100k
10M
1M
1M