TC911 データシートの表示（PDF） - TelCom Semiconductor Inc => Microchip
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TC911 Datasheet PDF : 5 Pages
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AUTO-ZEROED MONOLITHIC
OPERATIONAL AMPLIFIERS
1
TC911A
TC911B
TYPICAL APPLICATIONS
10-Volt Precision Reference
2
Thermometer Circuit
+9V
18 kΩ
+15V
TC911
3+ 7
6
2–
4
6.4V
0.1 µF
VOUT = 10V
TEMP
OUT
REF02
ADJ
VREF
R1
TC911
R2
–
+
3
VOUT
3.6 kΩ
6.4 kΩ
R3
4
[ ( )] [ ] VOUT = VTEMP
1 + R2
R3 + R1
R3X R1
–
VREF
R2
R1
[ ( )] d VOUT =
dT
1 + R2
R +R
31
R3 X R1
d (VTEMP) ≈K (2.1 mV/°C)
dT
K = 1 + R2
R3X R1
5
Programmable Gain Amplifier With Input Multiplexer
+5V –5V
GND
+5V –5V
IN1
IN2
IC1b
IN3
IN4
A1 A2 A3 A4WR
INPUT
CHANNEL
SELECT
IC1b
+
–
+5V –5V
TC911
VOUT
X1
X 10
X 100 X1000
18 k Ω 99 k Ω 999 kΩ
6
68HC11
7
GAIN
SELECT
WR LATCH
A1 A2 A3 A4
GND
2 kΩ
1 kΩ
1 kΩ
IC1a, b, = Quad Analog Switch
TELCOM SEMICONDUCTOR, INC.
8
3-267
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