參數(shù)資料
型號(hào): QT113-IS
廠商: Electronic Theatre Controls, Inc.
英文描述: CHARGE-TRANSFER TOUCH SENSOR
中文描述: 電荷轉(zhuǎn)移觸摸傳感器
文件頁(yè)數(shù): 9/12頁(yè)
文件大小: 180K
代理商: QT113-IS
4.5 DC SPECIFICATIONS
Vdd = 3.0V, Cs = 10nF, Cx = 5pF, T
A
= recommended range, unless otherwise noted
Min
Description
Parameter
Note 2
fF
28
1,000
Sensitivity range
S
bits
14
Acquisition resolution
A
R
Resistance from SNS1 to SNS2
1M
Min shunt resistance
I
X
pF
100
0
Load capacitance range
C
X
OPT1, OPT2
μA
±1
Input leakage current
I
IL
OUT, 1mA source
V
Vdd-0.7
High output voltage
V
OH
OUT, 4mA sink
V
0.6
Low output voltage
V
OL
OPT1, OPT2
V
2.2
High input logic level
V
HL
OPT1, OPT2
V
0.8
Low input logic level
V
IL
Required for proper startup
V/s
100
Supply turn-on slope
V
DDS
μA
1,500
600
Supply current
I
DD
V
5.25
2.45
Supply voltage
V
DD
Notes
Units
Max
Typ
Note 2:
Sensitivity depends on value of Cx and Cs. Refer to Figures 4-1, 4-2.
- 9 -
Figure 4-1 - Typical Threshold Sensitivity vs. Cx,
High Gain, at Selected Values of Cs; Vdd = 3.0
0.01
0.10
1.00
10.00
0
10
20
30
40
Cx Load, pF
D
10nF
20nF
50nF
100nF
200nF
500nF
Figure 4-2 - Typical Threshold Sensitivity vs. Cx,
Low Gain, at Selected Values of Cs; Vdd = 3.0
0.01
0.10
1.00
10.00
0
10
20
30
40
Cx Load, pF
D
10nF
20nF
50nF
100nF
200nF
500nF
相關(guān)PDF資料
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