AD8231-EVALZ 查看數據表（PDF） - Analog Devices
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AD8231-EVALZ Datasheet PDF : 24 Pages
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AD8231
2000
VREF = MIDSUPPLY
VCM = MIDSUPPLY
1500
1000
500
3V
0
5V
–500
–40 –20 0
20 40 60 80
TEMPERATURE (°C)
100 120
Figure 9. Instrumentation Amplifier Bias Current vs. Temperature
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5 –2.0 –1.5 –1.0 –0.5 0
+VS = +2.5V
–VS = –2.5V
VREF = 0V
0.5 1.0 1.5 2.0 2.5
VCM (V)
Figure 10. Instrumentation Amplifier Bias Current vs.
Common-Mode Voltage, 5 V
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
–1.5 –1.2 –0.9 –0.6 –0.3 0
+VS = +1.5V
–VS = –1.5V
VREF = 0V
0.3 0.6 0.9 1.2 1.5
VCM (V)
Figure 11. Instrumentation Amplifier Bias Current vs.
Common-Mode Voltage, 3 V
6
0V, 4.96V
5
4
5V SINGLE SUPPLY
3
4.92V, 2.5V
2 0V, 2.96V
3V SINGLE SUPPLY
1
0V, 0.04V
2.92V, 1.5V
0
0
1
2
3
4
5
6
OUTPUT VOLTAGE (V)
Figure 12. Instrumentation Amplifier Input Common-Mode Range vs.
Output Voltage, VREF = 0 V
6
1.5V, 4.96V
5
4 0.02V, 4.22V 5V SINGLE SUPPLY
1.5V, 2.96V
3
4.98V, 3.22V
2 0.02V, 2.22V
2.98V, 2.22V
3V SINGLE SUPPLY
4.98V, 1.78V
1 0.02V, 0.78V
2.98V, 0.78V
1.5V, 0.04V
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT VOLTAGE (V)
Figure 13. Instrumentation Amplifier Input Common-Mode Range vs.
Output Voltage, VREF = 1.5 V
6
2.5V, 4.96V
5
4
0.02V, 3.72V
5V SINGLE SUPPLY
4.98V, 3.72V
3
2.5V, 2.96V 2.98V, 2.72V
2
0.02V, 1.72V
1
3V SINGLE
SUPPLY
4.98V,1.28V
0.02V, 1.28V
2.5V, 0.04V
2.98V, 0.28V
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT VOLTAGE (V)
Figure 14. Instrumentation Amplifier Input Common-Mode Range vs.
Output Voltage, VREF = 2.5 V
Rev. A | Page 10 of 24
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