LT119A/LT319A
LM119/LM319
TYPICAL APPLICATIONS
5kHz to 2MHz V→F Converter
5V
3.3k
50pF
POLYSTYRENE
5V
470Ω
10k
2k
†
0V TO 10V
20k
4
0.01µF
3
2N2369
5V
330Ω
TTL OUT
5kHz TO 2MHz
ALL DIODES 1N4148
†
SET SCALE FACTOR
SCHEMATIC DIAGRAM
R1
3.5k
R2
4k
R3
4k
Q3
–
5.6V
INPUTS
5.6V
Q1
Q2
R4
3k
R5
3k
+
Q22
R23
4k
Q21
TO OTHER
SIDE
LT119A
R25
600Ω
R24
250Ω
Q20
Q19
R21 Q18
900Ω
R19
250Ω
R14
2k
R22
60Ω
R20
3.6k
R18
1.9k
Q11
R13
600Ω
Q12
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
–
1
/
2
LT119A
1
470Ω
22pF
5V
1M
+
2
10k
220Ω
10k
LT1004-1.2
–5V
6
10
2k
–
1
/
2
LT119A
9
0.1µF
7
+
5
8
3k
–5V
LT119/319 TA9
W
V
+
R6
3k
Q4
Q7
Q6
R11
13k
R8
2k
R9
18k
Q13
Q10
Q14
Q16
R16
600Ω
R7
3k
Q9
Q8
C1
18pF
R10
170Ω
R12
13k
Q15
R15
300
OUTPUT
Q5
Q17
R17
3Ω
V
–
GND
W
7
LINER [ LINEAR TECHNOLOGY ]
