AD7934BRU-6REEL7 查看數據表（PDF） - Analog Devices
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AD7934BRU-6REEL7 Datasheet PDF : 28 Pages
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AD7934-6
4
SINGLE-ENDED MODE
3
2
1
POSITIVE DNL
0
NEGATIVE DNL
–1
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75
VREF (V)
Figure 9. DNL vs. VREF for VDD = 3 V
12
11
VDD = 5V
DIFFERENTIAL MODE
10
VDD = 5V
SINGLE-ENDED MODE
9
VDD = 3V
SINGLE-ENDED MODE
8
VDD = 3V
DIFFERENTIAL MODE
7
6
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
VREF (V)
Figure 10. ENOB vs. VREF
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
0
VDD = 5V
VDD = 3V
SINGLE-ENDED MODE
0.5
1.0
1.5
2.0
2.5
3.0
3.5
VREF (V)
Figure 11. Offset vs. VREF
10000
DIFFERENTIAL MODE
9000
9997
CODES
INTERNAL
REF
8000
7000
6000
5000
4000
3000
2000
1000
0
2046
2047
3 CODES
2048
2049
CODE
2050
Figure 12. Histogram of Codes for 10,000 Samples @ VDD = 5 V
with Internal Reference
120
DIFFERENTIAL MODE
110
100
90
80
70
60
0
200
400
600
800
1000
1200
RIPPLE FREQUENCY (kHz)
Figure 13. CMRR vs. Ripple Frequency with VDD = 5 V and 3 V
Rev. B | Page 10 of 28
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