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參數(shù)資料
| 型號： | QT301 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | CAPACITANCE TO ANALOG CONVERTER |
| 中文描述： | 電容模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 247K |
| 代理商： | QT301 |
6 Electrical specifications
6.1 ABSOLUTE MAXIMUM SPECIFICATIONS
Operating temp................................................................................ as designated by suffix
Storage temp....................................................................................... -65
O
C to +125
O
C
Vdd...................................................................................................... -0.5 to +6V
Max continuous pin current, any control or drive pin.............................................................. ±40mA
Short circuit duration to ground, any pin......................................................................... infinite
Short circuit duration to VDD, any pin........................................................................... infinite
Voltage forced onto any pin.................................................................... -1V to (VDD + 0.5) Volts
6.2 RECOMMENDED OPERATING CONDITIONS
Vdd........................................................................................................ +3 to 5V
Short-term supply ripple+noise.................................................................................. ±5mV
Long-term supply stability.................................................................................... ±100mV
Cs value................................................................................................. 1 to 500nF
Cx value.................................................................................................. 0 to 500pF
6.3 GENERAL SPECIFICATIONS
-0.51
Burst length coefficient
K
pF
11
Sensor pin internal capacitance
Csns
ms
200
Power up time
T
PU
100,000
EEPROM write cycles
E
WC
Notes
Units
Max
Typ
Min
Description
Parameter
6.4 AC SPECIFICATIONS
VDD = 3.3 Volts, Cs = 100nF, Cx = 5pF, Ta = recommended range, unless otherwise noted
ms
15 x T
BS
Calibration duration
T
CD
ms
2.5
Calibration pulse duration
T
CPD
kHz
100
PWM frequency
F
PWM
ms
T
BD
+ 100
T
BD
+ 2.5
Burst spacing
T
BS
ms
16
Burst length
T
BD
%
±7
Burst frequency modulation
F
D
kHz
265
Burst center frequency
Fc
+/-10% over voltage and
temperature range
μs
1.5
1.25
1
Charge/transfer time
T
PC
Notes
Units
Max
Typ
Min
Description
Parameter
6.5 DC SPECIFICATIONS
VDD = 3.3 Volts, Cs = 100nF, Cx = 5pF, Ta = recommended range, unless otherwise noted
fF
8
Resolution per bit
S
bits
11
Acquisition resolution
A
R
I
OH
= -1.5mA
V
VDD-0.7
High output voltage
V
OH
I
OL
= 6mA
V
0.5
Low output voltage
V
OL
VDD = 3 to 5.5V
V
0.6 VDD
Input high voltage
V
IH
VDD = 3 to 5.5V
V
0.3 VDD
Input low voltage
V
IL
@3.3V
mA
2.9
Supply current
I
DD
@5V
mA
5
Supply current
I
DD
Notes
Units
Max
Typ
Min
Description
Parameter
L
Q
6
QT301 R1.04 21/09/03
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