AD8222 Analog Devices, AD8222 Datasheet - Page 9

• Manufacturer Part Number: AD8222
• Description: Precision, Dual-Channel Instrumentation Amplifier Data Sheet (Rev. 0, 7/2006)
• Manufacturer: Analog Devices

–1000
Figure 11. Input Bias Current and Offset Current vs. Temperature
–100
–150
–200
1000
–200
–400
–600
–800
200
150
100
–50
800
600
400
200
Figure 10. Change in Input Offset Voltage vs. Warm-Up Time
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
50
0
–15
0
0
–55
0
–35
Figure 9. I
–10
2
–15
COMMON-MODE VOLTAGE (V)
BIAS
WARM-UP TIME (Minutes)
–5
5
vs. Common-Mode Voltage
TEMPERATURE (°C)
4
V
V
25
S
S
= ±15V
= ±5V
0
45
OFFSET CURRENT
NEGATIVE
6
65
5
POSITIVE
85
8
10
105
125
15
1
0
Rev. 0 | Page 9 of 24
160
150
140
130
120
110
100
160
150
140
130
120
110
100
10k
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
1k
10
Figure 13. Negative PSRR vs. Frequency, RTI (G = 1 to 1000)
Figure 12. Positive PSRR vs. Frequency, RTI (G = 1 to 1000)
0
0
1
0.1
0.1
1
GAIN = 10
Figure 14. Total Drift vs. Source Resistance
10
1
1
GAIN = 1000
GAIN = 1
100
10
10
SOURCE RESISTANCE (Ω)
GAIN = 100
FREQUENCY (Hz)
FREQUENCY (Hz)
100
100
1k
GAIN = 100
10k
1k
1k
GAIN = 10
GAIN = 10
GAIN = 1000
GAIN = 1000
GAIN = 1
100k
10k
10k
GAIN = 1
BANDWIDTH
GAIN = 100
LIMITED
100k
100k
1M
AD8222
10M
1M
1M