QT113H ETC, QT113H Datasheet - Page 9

• Manufacturer Part Number: QT113H
• Description: CHARGE-TRANSFER TOUCH SENSOR
• Manufacturer: ETC

4.5 DC SPECIFICATIONS
Vdd = 3.0V, Cs = 10nF, Cx = 5pF, T
Note 2: Sensitivity depends on value of Cx and Cs. Refer to Figures 4-1, 4-2.
Parameter
V
10.00
V
V
V
V
I
1.00
0.10
0.01
V
C
A
DD
DDS
I
I
S
DD
OL
OH
IL
HL
X
IL
R
X
Figure 4-1 - Typical Threshold Sensitivity vs. Cx,
High Gain, at Selected Values of Cs; Vdd = 3.0
0
Supply voltage
Supply current
Supply turn-on slope
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Load capacitance range
Min shunt resistance
Acquisition resolution
Sensitivity range
10
Description
Cx Load, pF
20
30
A
= recommended range, unless otherwise noted
40
Vdd-0.7
1,000
Min
2.45
100
2.2
0
10nF
20nF
50nF
100nF
200nF
500nF
Typ
600
1M
- 9 -
1,500
Max
5.25
100
0.8
0.6
10.00
±1
14
28
1.00
0.10
0.01
Figure 4-2 - Typical Threshold Sensitivity vs. Cx,
Low Gain, at Selected Values of Cs; Vdd = 3.0
0
Units
bits
V/s
µA
µA
pF
fF
✡
V
V
V
V
V
10
Required for proper startup
OPT1, OPT2
OPT1, OPT2
OUT, 4mA sink
OUT, 1mA source
OPT1, OPT2
Resistance from SNS1 to SNS2
Note 2
Cx Load, pF
20
30
Notes
40
10nF
20nF
50nF
100nF
200nF
500nF