AD7564 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
AD7564 Datasheet PDF : 17 Pages
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AD7564
2.0
1.8
VDD = +3.3V
TA = +25°C
1.6
OP AMP = AD820
VREF = +1.23V (AD589)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
|VREF – VBIAS| – Volts
Figure 9. Integral Nonlinearity Error vs. VREF
(Biased Mode)
2.0
1.8
VDD = +5V
TA = +25°C
1.6
OP AMP = AD820
VBIAS = +1.23V (AD589)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
|VREF – VBIAS| – Volts
Figure 10. Integral Nonlinearity Error vs. VREF
(Biased Mode)
0.2
0.1
0.0
–0.1
–0.2
–0.3
–0.4
–0.5
0
1024
VDD = +3.3V
TA = +25°C
VBIAS = 1.23V
VREF = 0V
2048
CODE – LSBs
3072
4095
Figure 11. All Codes Linearity Plot (Biased Mode)
2.0
1.8
VDD = +3.3V
TA = +25°C
1.6
OP AMP = AD820
VREF = +1.23V (AD589)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
|VREF – VBIAS| – Volts
Figure 12. Differential Nonlinearity Error vs. VREF
(Biased Mode)
2.0
1.8
VDD = +5V
TA = +25°C
1.6
OP AMP = AD820
VBIAS = +1.23V (AD589)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
|VREF – VBIAS| – Volts
Figure 13. Differential Nonlinearity Error vs. VREF
(Biased Mode)
0.4
NORMAL MODE
VDD = +5V
TA = +25°C
0.3 VREF = 10V
0.2
0.1
0.0
–0.1
0
1024
2048
CODE – LSBs
3072
4095
Figure 14. All Codes Linearity Plot (Normal Mode)
–10–
REV. B
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