TC911 TELCOM [TelCom Semiconductor, Inc], TC911 Datasheet - Page 5

• Manufacturer Part Number: TC911
• Description: AUTO-ZEROED OPERATIONAL AMPLIFIERS
• Manufacturer: TELCOM [TelCom Semiconductor, Inc]

TYPICAL APPLICATIONS
AUTO-ZEROED MONOLITHIC
OPERATIONAL AMPLIFIERS
TELCOM SEMICONDUCTOR, INC.
68HC11
CHANNEL
10-Volt Precision Reference
18 k
6.4V
SELECT
IN 1
IN 2
IN 3
IN 4
INPUT
6.4 k
IC1a, b, = Quad Analog Switch
3
2
+5V
A 1 A 2 A 3 A 4 WR
+
–
+15V
IC1b
7
4
–5V
3.6 k
0.1 µF
6
Programmable Gain Amplifier With Input Multiplexer
TC911
GND
SELECT
GAIN
V
IC1b
OUT
= 10V
WR
A 1 A 2
+5V –5V
+5V
+
–
LATCH
TEMP
OUT
–5V
A 3 A 4
K = 1 +
d V
V
V
REF
dT
OUT
OUT
GND
= V
R X R
REF02
TC911
=
X
3
+9V
R 2
1
TEMP
[
ADJ
1 + R
1
R
1
Thermometer Circuit
[ (
2
X
18 k
(
2 k
1 + R
10
R + R
R X R
3
3
2
R + R 1
R X R
1
1
X
3
3
)]
99 k
1 k
100
d (V
1
R 3
)
TEMP
dT
] [
X
–
–
+
999 k
R 2
1 k
TC911
1000
V
)
REF
V OUT
K (2.1 mV/ C)
R
R
TC911A
TC911B
2
1
]
V OUT
3-267
1
2
3
4
5
6
7
8