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參數(shù)資料
| 型號： | CAV414 |
| 廠商： | AME, 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)： | 2/6頁 |
| 文件大小： | 78K |
| 代理商： | CAV414 |
Converter IC for Capacitive Signals
CAV414
analog microelectronics
January 2001
2/6
ELECTRICAL SPECIFICATIONS
T
amb
= 25°C,
V
CC
= 24V,
I
REF
= 1mA (unless otherwise noted)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply
Supply Voltage
V
CC
6
35
V
Quiescent Current
I
CC
T
amb
= –40 ... 85°C,
I
REF
= 0mA
1.55
2.7
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
= 200k
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
= 400k
C
X
= (
C
X
2
C
X
1
)/
C
X
1
C
X
2
=
C
X
1
(1 +
C
X
)
R
CX
2
= 400k
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
V
M
–0.4
V
M
+0.4
V
Corner Frequency 1
f
C
1
R
01
= 20k
,
C
L
1
=1nF
R
02
= 20k
,
C
L
2
=1nF
10
kHz
Corner Frequency 2
f
C
2
10
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
I
OUT
≤
1mA
1.9
10
-3
/°C
Power Supply Rejection Ratio
(together with Input Stages)
PSRR
80
90
dB
Voltage Reference
V
REF
Voltage
V
REF
4.75
5
5.25
V
Current
I
REF
0
9
mA
V
REF
vs. Temperature
d
V
REF
/d
T
T
amb
= –40...+85°C
±
90
±
140
ppm/°C
Line Regulation
d
V
REF
/d
V
Vcc
= 6V...35V
30
80
ppm/V
d
V
REF
/ d
V
Vcc
= 6V...35V,
I
REF
≈
4mA
60
150
ppm/V
Load Regulation
d
V
REF
/d
I
0.05
0.10
%/mA
d
V
REF
/d
I
I
REF
≈
4mA
0.06
0.15
%/mA
Load Capacitance
C
REF
1.9
2.2
5.0
μ
F
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