AD625
40
30
20
10
0
–10
–20
–30
–40
–125 –75 –25
25
75
125
TEMPERATURE – ؇C
Figure 10. Input Bias Current vs.
Temperature
+VS
VOUT
10V
AD625
–VS
Figure 11. Overrange and Gain
Switching Test Circuit (G = 8, G = 1)
Figure 12. Gain Overrange Recovery
8.0
6.0
4.0
2.0
0
0
5
10
15
20
SUPPLY VOLTAGE – ؎V
Figure 13. Quiescent Current vs.
Supply Voltage
1000
100
G=1
G = 10
10
G = 100, 1000
G = 1000
1
0.1
1
10
100 1k
10k
FREQUENCY – Hz
100k
Figure 14. RTI Noise Spectral
Density vs. Gain
100k
10k
1k
100
10
1
10
100
1k
10k 100k
FREQUENCY – Hz
Figure 15. Input Current Noise
Figure 16. Low Frequency Voltage
Noise, G = 1 (System Gain = 1000)
+VS
–VS
AD625
DUT
16.2k⍀
1F +VS
1F
1/2
AD712
AD712
1/2
9.09k⍀
G = 1, 10, 100
G = 1000
100⍀ 1k⍀
1F
–VS
1.62M⍀
1.82k⍀
16.2k⍀
Figure 17. Noise Test Circuit
Figure 18. Low Frequency Voltage
Noise, G = 1000 (System
Gain = 100,000)
–6–
REV. D