AD7877(RevA) 查看數據表（PDF） - Analog Devices
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AD7877 Datasheet PDF : 44 Pages
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1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 11. ADC DNL Plot
22
20
18
X– TO GND
16
Y– TO GND
14
Y+ TO VDD
12
10
X+ TO VDD
8
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
VDD (V)
Figure 12. Switch On Resistance vs. VCC
(X+, Y+: VCC to Pin; X−, Y−: Pin to GND)
22
20
X– TO GND
18
16
Y– TO GND
14
Y+ TO VDD
12
10
X+ TO VDD
8
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 13. Switch On Resistance vs. Temperature
(X+, Y+: VCC to Pin; X−, Y−: Pin to GND)
AD7877
16
14
12
10
8
6
4
2
0
–50
–30
–10
10
30
50
70
90
TEMPERATURE (°C)
Figure 14. External Reference Current vs. Temperature
2.520
2.515
2.510
2.505
2.500
2.495
2.490
2.485
2.480
2.475
–50
–30
–10
10
30
50
70
90
TEMPERATURE (°C)
Figure 15. Internal VREF vs. Temperature
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5.0
VCC (V)
Figure 16. Internal VREF vs. VCC
Rev. A | Page 11 of 44
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