AD7265 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
AD7265 Datasheet PDF : 29 Pages
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AD7265
1.0
0.8
0.6
0.4
POSITIVE INL
0.2
0
–0.2
NEGATIVE INL
–0.4
–0.6
–0.8
–1.0
0
0.5
VDD = 3V/5V
DIFFERENTIAL MODE
POSITIVE DNL
NEGATIVE DNL
1.0
1.5
2.0
2.5
VREF (V)
Figure 10. Linearity Error vs. VREF
12.0
11.5
11.0
VDD = 5V
10.5
SINGLE-ENDED MODE
10.0
9.5
VDD = 3V
SINGLE-ENDED MODE
9.0
8.5
VDD = 3V
DIFFERENTIAL MODE
VDD = 5V
DIFFERENTIAL MODE
8.0
7.5
7.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VREF (V)
Figure 11. Effective Number of Bits vs. VREF
2.5010
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
0
20 40 60 80 100 120 140 160 180 200
CURRENT LOAD (μA)
Figure 12. VREF vs. Reference Output Current Drive
10000
INTERNAL
REFERENCE
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
2046
2047
10000
CODES
2048
2049
CODE
DIFFERENTIAL
MODE
2050
Figure 13. Histogram of Codes for 10k Samples in Differential Mode
10000
INTERNAL
9000 REFERENCE
9984
CODES
SINGLE-ENDED
MODE
8000
7000
6000
5000
4000
3000
2000
1000
0
2046
5 CODES
11 CODES
2047
2048
2049
CODE
2050
Figure 14. Histogram of Codes for 10k Samples in Single-Ended Mode
–60
DIFFERENTIAL MODE
–65
VDD = 3V/5V
–70
–75
–80
–85
–90
–95
–100
0
200
400
600
800
1000
1200
RIPPLE FREQUENCY (kHz)
Figure 15. CMRR vs. Common-Mode Ripple Frequency
Rev. A | Page 10 of 28
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