Datasheet

LTC1049
12
1049fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 1991
LT 0406 REV B • PRINTED IN USA
Typical applicaTion
Thermocouple-Based Temperature to Frequency Converter
= 74C14
*IRC/TRW–MTR–5/+120ppm
†POLYSTYRENE
I
S
= 360µA
SUPPLY RANGE = 4.5V to 10V
OUTPUT
0 – 100°C =
0 – 1kHz
0.47µF
K
0.02µF
6V
GND
C3
6.81k*
1.5k
1M
6V
10k
Q2
2N3906
C1
100pF
NC
Q1
2N3904
l
1
l
2
l
3
100k
LT1025
2
1
3
S3
S4
S2
6 7
8
LT1004 – 1.2
10
C2
390pF
†
LTC201
S1
15
16
14
11
9
6.8µF
6V
C4
300pF
100k
240k
LTC1049 • TA04
–
TYPE K
THERMO-
COUPLE
100°C
TRIM
R
–
+
V
+
+
+
–
LTC1049
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