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QT110-DG Datasheet(PDF) 9 Page - Quantum Research Group

Part No. QT110-DG
Description  QTOUCH??SENSOR IC
Download  12 Pages
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Manufacturer  QUANTUM [Quantum Research Group]
Direct Link  http://www.qprox.com
Logo QUANTUM - Quantum Research Group

QT110-DG Datasheet(HTML) 9 Page - Quantum Research Group

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4.5 DC SPECIFICATIONS
Vdd = 3.0, Cs = 10nF, Rs = 470K, Cx = 10pF, Gain = High, Ta = 20OC, unless otherwise noted.
Cx = 10pF, Cs = 15nF; Figure 4-3
pF
3.8
Sensitivity - low gain
S[3]
Cx = 10pF, Cs = 15nF; Figure 4-2
pF
1.8
Sensitivity - medium gain
S[2]
Cx = 10pF, Cs = 15nF; Figure 4-1
pF
1.2
Sensitivity - high gain
S[1]
bits
8
Acquisition resolution
AR
OPT1, OPT2
µA
±1
Input leakage current
IIL
OUT, 1mA source
V
Vdd-0.7
High output voltage
VOH
OUT, 4mA sink
V
0.6
Low output voltage
VOL
OPT1, OPT2
V
2.2
High input logic level
VHL
OPT1, OPT2
V
0.8
Low input logic level
VIL
Required for proper startup
V/s
100
Supply turn-on slope
VDDS
@5.0V
@3.3V
@2.5V
µA
µA
µA
26
12
9.5
Supply current
IDD
V
2.45
Guaranteed min Vdd
VDDL
Notes
Units
Max
Typ
Min
Description
Parameter
LQ
9
QT110 R1.04/0405
Figure 4-3 Low Gain Sensitivity
and Range @ Vdd = 3V
Cx=30pF
25pF
20pF
10pF
5pF
0pF
Valid operating range
10
20
Cs, nF
2.0
4.0
6.0
30
8.0
Figure 4-4 Typical Supply Current Vs Vdd
Rs = 470K, Cx = 10pF, Gain = High
5
10
15
20
25
30
35
40
2.5
3
3.5
4
4.5
5
Vdd
...
Cs = 20nF
Cs = 10nF
Figure 4-1 High Gain Sensitivity
Figure 4-2 Medium Gain Sensitivity
and Range @ Vdd = 3V
and Range @ Vdd = 3V
Cx=30pF
Cx=30pF
25pF
25pF
20pF
20pF
10pF
10pF
5pF
5pF
0pF
0pF
Valid operating range
Valid operating range
10
20
Cs, nF
0.5
1.0
2.0
3.0
30
1.5
2.5
10
20
Cs, nF
1.0
2.0
3.0
30
4.0


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