AD7873
Data Sheet
7.5
6.5
5.5
4.5
3.5
2.5
1.5
14
13
12
11
10
9
8
7
6
5
4
3
0.5
10
2
–40
25
40
55
70
85
100
115
130
–20
0
20
40
60
80
SAMPLE RATE (kHz)
TEMPERATURE (°C)
Figure 11. Reference Current vs. Sample Rate
Figure 14. Reference Current vs. Temperature
10
9
9
8
7
6
5
4
3
Y+
X+
Y+
X+
8
X–
7
Y–
X–
6
Y–
5
4
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
–40
–20
0
20
40
60
80
100
+V (V)
CC
TEMPERATURE (°C)
Figure 12. Switch On Resistance vs. +VCC
(X+, Y+: +VCC to Pin; X−, Y−: Pin to GND)
Figure 15. Switch On Resistance vs. Temperature
(X+, Y+: +VCC to Pin; X−, Y−: Pin to GND)
2.5006
2.5004
2.5002
2.5000
2.4998
2.4996
2.4994
2.4992
2.4990
2.4988
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
INL: R = 2kΩ
INL: R = 500Ω
DNL: R = 2kΩ
DNL: R = 500Ω
0
–40 –30 –20 –10
0
10 20 30 40 50 60 70 80
TEMPERATURE (°C)
15
35
55
75
95
115
135
155
175
195
SAMPLING RATE (kSPS)
Figure 13. Linearity Error vs. Sampling Rate for Various RIN
Figure 16. Internal VREF vs. Temperature
Rev. F | Page 10 of 28
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