參數資料
型號: LM363
廠商: National Semiconductor Corporation
元件分類: 運動控制電子
英文描述: LM363 Precision Instrumentation Amplifier
中文描述: LM363精密儀表放大器
文件頁數: 17/22頁
文件大?。?/td> 452K
代理商: LM363
Typical Applications
(Continued)
Low Frequency Rolloff (AC Coupling)
TL/H/5609–25
f1
e
1
2
q
C1(50 k
X
)
f2
e
100 f1
e
100Hz
Reduced DC voltage gain
attenuates offset error and
1/f noise by a factor of 100.
e
1 Hz
Precision Comparator with Balanced Inputs and Variable Offset
Boosted Current Source with Limiting
TL/H/5609–26
t
pd
j
15
m
S at 1 mV overdrive
D
V
OUT
e
V2
a
0.6V
D
V
OUT
G(R1
a
R2)
Offset
e
V
SENSE/G
Hysteresis
e
e
2 mV
g
1.3V range
R1
e
R2
I
O
e
G V
IN
R2
I
MAX
e
V
BE
R2
j
60 mA
Thermocouple Amplifier with Cold Junction Compensation
TL/H/5609–27
Input protection circuitry allows
thermocouple to short to 120 V
AC
without
damaging amplifier.
Calibration:
1) Apply 50 mV signal in place of thermocouple.
Trim R3 for V
OUT
e
12.25V.
2) Reconnect thermocouple. Trim R9 for correct
output.
17
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