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參數(shù)資料
| 型號： | CAV424 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Converter IC for Capacitive Signals |
| 中文描述： | 轉(zhuǎn)換器集成電路電容信號 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 74K |
| 代理商： | CAV424 |
Converter IC for Capacitive Signals
CAV424
analog microelectronics
January 2002
2/7
ELECTRICAL SPECIFICATIONS
T
amb
= 25°C,
V
CC
= 5V (unless otherwise noted)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply
Supply Voltage
V
CC
ratiometric range
4.75
5.00
5.25
V
Maximum Supply Voltage
V
CCmax
17
V
Quiescent Current
I
CC
T
amb
= –40 ... 85°C,
G
LP
= 1
0.6
1.0
1.4
mA
Temperature Specifications
Operating
T
amb
–40
85
°C
Storage
T
st
–55
125
°C
Junction
T
j
Θ
ja
Θ
ja
150
°C
Thermal Resistance
DIL16 plastic package
70
°C/W
SO16 (n) plastic package
140
°C/W
Reference Oscillator
Oscillator Capacitor Range
C
OSC
C
OSC
= 1.6
C
X
1
14
1800
pF
Oscillator Frequency Range
f
OSC
1
130
kHz
Oscillator Current
I
OSC
R
OSC
= 250k
9.5
10
10.75
μ
A
Capacitive Integrator 1 and 2
Capacitor Range 1
C
X
1
10
1000
pF
Capacitive Integrator Current 1
I
X
1
R
CX
1
= 500k
C
X
= (
C
X
2
C
X
1
)/
C
X
1
C
X
2
=
C
X
1
(1 +
C
X
)
R
CX
2
= 500k
4.75
5
5.38
μ
A
Capacitor Detection Sensitivity
C
X
5
100
%
Capacitor Range 2
C
X
2
10.5
2000
pF
Capacitive Integrator Current 2
I
X
2
4.75
5
5.38
μ
A
Detection Frequency
f
DET
C
L
1
=
C
L
2
=1nF
2
kHz
Lowpass
Adjustable Gain
G
LP
1
10
Output Voltage
V
LPOUT
1.1
V
CC
– 1.1
V
Corner Frequency 1
f
C
1
R
01
= 20k
,
C
L
1
=1nF
R
02
= 20k
,
C
L
2
=1nF
8
kHz
Corner Frequency 2
f
C
2
8
kHz
Resistive Load at PIN
LPOUT
R
LOAD
200
k
Capacitive Load at PIN
LPOUT
C
LOAD
50
pF
Temperature Coefficient
V
DIFF
(together
with Input Stages)
d
V
DIFF
/d
T
V
DIFF
=
V
LPOUT
-
V
M
,
T
amb
= –40 ... 85°C
±
100
ppm/°C
Internal Resistor 1 and 2
R
01
, R
02
20
k
Temperature Coefficient
R
01,02
d
R
01,02
/d
T
T
amb
= –40 ... 85°C
1.9
10
-3
/°C
Ratiometric Error of
V
LPOUT
*
RAT
@
V
DIFF
= 2 [1.05
V
DIFF
(
V
CC
= 5V) –
V
DIFF
(
V
CC
= 5.25V)]/[
V
DIFF
(
V
CC
= 5V) +
V
DIFF
(
V
CC
= 5.25V)]
RAT
@
V
DIFF
*
0.11
%FS
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