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參數(shù)資料
| 型號(hào)： | AM457 |
| 廠商： | AME, Inc. |
| 英文描述： | Precision amplifier for bridge circuits |
| 中文描述： | 精密放大器電路的橋梁 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 271K |
| 代理商： | AM457 |
Precision amplifier for bridge circuits
AM457
analog microelectronics
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Internet: www.analogmicro.de
May 2005
Phone: +49 (0)6131/91 073 – 0
Fax:
+49 (0)6131/91 073 – 30
Email:
info@analogmicro
.
de
4/10
Rev. 2.2
ELECTRICAL SPECIFICATIONS
T
amb
= 25°C,
V
CC
= 5V (unless otherwise stated)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Voltage Range
V
CC
I
CC
4.5
5
5.5
V
Quiescent Current
T
amb
= -40...+85°C
1.5
2.5
mA
Temperature Specifications
Operating
T
amb
T
st
-45
125
°C
Storage
-55
150
°C
Junction
T
J
Θ
ja
Θ
ja
150
°C
Thermal Resistance
DIL8 plastic package
111
°C/W
SO8 narrow plastic package
181
°C/W
Amplifier AMP
Offset Voltage
V
OS
±
0.1
±
0.3
mV
V
OS
vs. Temperature
d
V
OS
/d
T
T
amb
= -45…105°C
±
0.5
±
1.2
μV/°C
V
OS
vs. Temperature
d
V
OS
/d
T
T
amb
= 105…125°C
±
120
200
μV
Input Bias Current
I
B
30
nA
I
B
vs. Temperature
d
I
B
/d
T
V
CM
= 2.5V
T
amb
= -45…125°C
–130
–600
pA/°C
Differential Input Voltage
V
IN
V
IN
=
V
IN+
–
V
IN-
±
5
±
100
mV
Input Offset Current
I
OS
±
0.5
±
5
nA
I
OS
vs. Temperature
d
I
OS
/d
T
V
CM
= 2.5V
T
amb
= -45…125°C
±
2.5
±
30
pA/°C
Input Resistance
R
IN
V
CM
/
I
B,typ
(
V
CM
= 2.5V)
100
M
Input Capacitance
C
IN
90
pF
Common Mode Input Range
CMIR
1
VCC
– 1.3
V
Common Mode Rejection Ratio
CMRR
120
135
dB
Open Loop Gain
G
0
G
120
140
dB
Adjustable Gain
10
Output Voltage Range
V
OUT
0.2
VCC
– 0.2
V
Output Current
I
OUT
Sink and source
250
μA
Output Load Capacitance
C
L
1
5
nF
Output Load Resistance
R
L
Sink and source
20
k
Power Supply Rejection Ratio
PSRR
90
110
dB
Gain Bandwidth Product
GBW
G
= 10;
C
1
= 1nF;
R
L
= 20k
Including filters for EMC
protection
30
kHz
Non Linearity
G
≤
100
10
-4
Slew Rate
SR
C
1
= 1nF;
R
L
= 20k
T
amb
, ;
Rs =
1k
;
V
CC
=
5V
Rs
= Source Impedance
0.3
0.8
V/μs
Input Voltage Noise
e
n
30
nV/
√
Hz
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