AD7945ARS-B データシートの表示（PDF） - Analog Devices
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AD7945ARS-B Datasheet PDF : 16 Pages
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Typical Performance Curves
0.5
VDD = +5V
TA = +25؇C
0.4
OP AMP = AD843
0.3
0.2
0.1
0
2
4
6
8
10
VREF – Volts
Figure 5. Differential Nonlinearity Error vs.
VREF (Normal Mode)
1.0
VDD = +5V
0.9
TA = +25؇C
OP AMP = AD843
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2
4
6
8
10
VREF – Volts
Figure 6. Integral Nonlinearity Error vs.
VREF (Normal Mode)
AD7943/AD7945/AD7948
0.50
VDD = +5V
VREF = +10V
OP AMP = AD843
TA = +25؇C
0.25
0.00
–0.25
–0.50
0
1024
2048
INPUT CODE
3072
4095
Figure 7. All Codes Linearity In Normal Mode (VDD = +5 V)
6
VDD = +3.3V
5
TA = +25؇C
OP AMP = AD820
4
3
2
1
0
0.2
0.4
0.6
0.8
1.0
|VREF – VBIAS| – Volts
1.2
1.4
Figure 8. Linearity Error vs. VREF (Biased Mode)
REV. B
–11–
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