qt1101 Quantum Research Group, qt1101 Datasheet - Page 12
qt1101
Manufacturer Part Number
qt1101
Description
10 Key Qtouch? Sensor Ic
Manufacturer
Quantum Research Group
Datasheet
1.QT1101.pdf
(16 pages)
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4.6 Idd Curves
lQ
Cx = 5pF, Cs = 4.7nF, Ta = 20
Cx = 5pF, Cs = 4.7nF, Ta = 20
5.0
4.0
3.0
2.0
1.0
0.0
400
300
200
100
5.0
4.0
3.0
2.0
1.0
0.0
300
250
200
150
100
50
0
0
2.5
2.5
2.5
2.5
QT1101 Idd (200m s response) µA
QT1101 Idd (200m s response) µA
QT1101 Idd (norm al m ode) m A
QT1101 Idd (norm al m ode) m A
Rb1=12K
Rb2=22K
Rb1=12K
Rb2=27K
Rb1=15K
Rb1=12K
Rb2=22K
Rb1=12K
Rb2=27K
Rb1=15K
3
3
3
3
Rb1=18K
3.5
3.5
3.5
3.5
Rb1=18K
Vdd(V)
Vdd(V)
Vdd(V)
Vdd(V)
4
4
4
4
o
o
C, Spread spectrum circuit (see Fig. 1.1).
C, No spread spectrum circuit (see Fig. 1.1).
Rb1=15K
Rb2=27K
Rb1=20K
4.5
4.5
Rb1=15K
Rb2=27K
4.5
Rb1=20K
4.5
5
5
5
5
5.5
5.5
5.5
5.5
12
700
600
500
400
300
200
100
300
250
200
150
100
600
500
400
300
200
100
150
125
100
50
75
50
25
0
0
0
0
2.5
2.5
2.5
2.5
QT1101 Idd (120m s response) µA
QT1101 Idd (360m s response) µA
QT1101 Idd (120m s response) µA
QT1101 Idd (360m s response) µA
Rb1=12K
Rb2=22K
Rb1=12K
Rb2=27K
Rb1=15K
Rb1=15K
Rb1=12K
Rb2=22K
Rb1=12K
Rb2=27K
3
3
3
3
3.5
3.5
Rb1=18K
3.5
3.5
Rb1=18K
Vdd(V)
Vdd(V)
Vdd(V)
Vdd(V)
4
4
4
4
Rb1=15K
Rb2=27K
Rb1=20K
Rb1=20K
4.5
Rb1=15K
Rb2=27K
4.5
4.5
4.5
QT1101 R4.06/0806
5
5
5
5
5.5
5.5
5.5
5.5