參數(shù)資料
型號(hào): QT110
廠商: Electronic Theatre Controls, Inc.
英文描述: SENSOR ICs
中文描述: 傳感器IC
文件頁(yè)數(shù): 10/12頁(yè)
文件大?。?/td> 207K
代理商: QT110
4.5 DC SPECIFICATIONS
Vdd = 3.0V, Cs = 10nF, Cx = 5pF, T
A
= recommended range, unless otherwise noted
Min
Description
Parameter
Refer to Figures 4-1 through 4-3
pF
3
Sensitivity - low gain
S[3]
Refer to Figures 4-1 through 4-3
pF
1.5
Sensitivity - medium gain
S[2]
Refer to Figures 4-1 through 4-3
pF
1
Sensitivity - high gain
S[1]
bits
14
Acquisition resolution
A
R
Resistance from SNS1 to SNS2
500K
Min shunt resistance
I
X
pF
30
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
20
Supply current
I
DD
V
5.25
2.45
Supply voltage
V
DD
Notes
Units
Max
Typ
Preliminary Data: All specifications subject to change.
- 10 -
Figure 4-1 High Gain Sensitivity
and Range @ Vdd = 3V
Figure 4-2 Medium Gain Sensitivity
and Range @ Vdd = 3V
Cx=30pF
Cx=30pF
25pF
25pF
20pF
20pF
10pF
5pF
10pF
5pF
0pF
0pF
Valid operating range
Valid operating range
10
20
Cs, nF
0.5
1.0
2.0
3.0
S
30
1.5
2.5
10
20
Cs, nF
1.0
2.0
3.0
S
30
4.0
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
S
30
8.0
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