AD621(RevA) Просмотр технического описания (PDF) - Analog Devices
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AD621 Datasheet PDF : 16 Pages
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AD621
1000
100mV
1s
100
90
100
10
0%
10
1
10
100
1000
FREQUENCY – Hz
Figure 7. Current Noise Spectral Density vs. Frequency
Figure 9. 0.1 Hz to 10 Hz Current Noise, 5 pA per Vertical
Div, 1 Second per Horizontal Div
100,000
10,000
1000
FET INPUT
IN-AMP
TIME – 1 sec/div
Figure 8a. 0.1 Hz to 10 Hz RTI Voltage Noise, Gain = 10
100
AD621A
10
1k
10k
100k
1M
10M
SOURCE RESISTANCE – Ω
Figure 10. Total Drift vs. Source Resistance
TIME – 1 sec/div
Figure 8b. 0.1 Hz to 10 Hz RTI Voltage Noise, G = 100
+160
+140
+120
+100
GAIN = 100
GAIN = 10
+80
+60
+40
+20
0
0.1
1
10
100
1k
10k 100k 1M
FREQUENCY – Hz
Figure 11. CMR vs. Frequency, RTI, for a Zero to 1 kΩ
Source Imbalance
–6–
REV. A
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