ad51-064z-0reel Analog Devices, Inc., ad51-064z-0reel Datasheet - Page 9

• Manufacturer Part Number: ad51-064z-0reel
• Description: Touch Screen Digitizer
• Manufacturer: Analog Devices, Inc.

2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
7.5
6.5
5.5
4.5
3.5
2.5
1.5
0.5
10
9
8
7
6
5
4
0
2.0
10
15
Y+
35
25
Figure 10. Reference Current vs. Sample Rate
2.5
Figure 12. Maximum Sampling Rate vs. R
X–
X+
Figure 11. Switch-On Resistance vs. +V
(X+, Y+: +V
55
40
INL: R = 500 Ω
3.0
DNL: R = 2k Ω
Y–
SAMPLING RATE (kSPS)
75
SAMPLE RATE (kHz)
CC
55
DNL: R = 500 Ω
to Pin; X−, Y−: Pin to GND)
3.5
95
+V
CC
70
(V)
115
4.0
85
135
INL: R = 2k Ω
4.5
100
155
CC
5.0
115
IN
175
130
195
5.5
Rev. B | Page 9 of 20
100
120
14
13
12
11
10
20
40
60
80
9
8
7
6
5
4
3
0
9
8
7
6
5
4
3
2
–40
–40
0
Figure 15. Auxiliary Channel Dynamic Performance
Figure 14. Switch-On Resistance vs. Temperature
7.5
–20
Figure 13. Reference Current vs. Temperature
–20
(X+, Y+:+V
15.0
(f
SAMPLE
0
0
Y–
22.5
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (kHz)
=125 kHz, f
CC
to Pin; X−, Y−: Pin to GND)
20
30.0
20
Y+
INPUT
40
37.5
= 15 kHz)
40
X–
f
f
SNR = 68.34dB
SAMPLE
IN
60
45.0
= 15kHz
60
= 125kHz
X+
52.5
80
AD7843
60.0
80
100