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TC911ACPA 데이터 시트보기 (PDF) - Microchip Technology
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TC911ACPA
Monolithic Auto-Zeroed Operational Amplifiers
Microchip Technology
TC911ACPA Datasheet PDF : 14 Pages
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TC911A/TC911B
4.0 TYPICAL APPLICATIONS
FIGURE 4-1:
+9V
THERMOMETER CIRCUIT
Temp
Out
REF02
ADJ
V
REF
R
1
TC911
R
2
–
+
R
3
V
OUT
[ ( ) ] [
]
V
OUT
= V
TEMP
1 + R
2
R
3
+ R
1
R
3
X
R
1
R
2
– V
REF
R
1
[ ( )]
d V
OUT
dT
≈
1 + R
2
R
3
+ R
1
R
3
X
R
1
d (V
TEMP
)
dT
R
2
K=1+
R
3
X
R
1
≈
K (2.1 mV/C)
FIGURE 4-2:
10-VOLT PRECISION
REFERENCE
18 k
6.4V
+15V
TC911
3
+
7
6
2
–
4
0.1µF
3.6 k
V
OUT
= 10V
6.4 k
FIGURE 4-3:
PROGRAMMABLE GAIN AMPLIFIER WITH INPUT MULTIPLEXER
+5V –5V
GND
+5V –5V
IN
1
IN
2
IC1b
IN
3
IN
4
A
1
A
2
A
3
A
4
WR
Input
Channel
Select
TC911
IC1b
+
–
+5V -5V
X1
X 10
18k
V
OUT
X 100
99k
X 1000
999k
68HC11
WR Latch
GND
Gain
Select
A
1
A
2
A
3
A
4
2k
1k
1k
IC1a, b, = Quad Analog Switch
DS21481C-page 6
©
2005 Microchip Technology Inc.
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