Typical Applications
Figure 12. Low frequency op-amp with offset
adjust
5V
Offset Adjust
100kW
5V
LM193, A - LM293, A - LM393, A
Figure 13. Zero crossing detector (single power
supply)
5V
100kW
R2
R
s
R
I
1MW
1MW
15kW
1/2
LM193
100kW
5.1kW
5.1kW
e
I
2N 2222
5.1kW
1/2
LM193
e
I
~
0.5mF
R1
100kW
1kW
1N4148
20MW
e
o
10kW
Figure 14. Two-decade high-frequency VCO
V
CC
100kW
100kW
V
CC
500pF
1/2
LM193
3kW
5.1kW
0.01m F
1/2
LM193
3kW
Frequency control
voltage input
v
control
0.1mF
20kW
50kW
20k
W
Output 1
V
CC
/2
Output 2
1/2
LM193
V
CC
/2
V = +30V
CC
+250mV V
control
+50V
700 Hz
f
o
100kHz
Figure 15. Limit comparator
V
CC
(12V)
Figure 16. Crystal controlled oscillator
V = 15V
CC
2R
S
V
(ref)
high
R
S
10kW
1/2
LM193
200k
W
100k
W
2k
W
Lamp
0.1
m
F
1/2
LM193
V
CC
0
e
o
e
I
~
2R
S
V
(ref)
low
1/2
LM193
f = 100kHz
2N 2222
200kW
7/13
STMICROELECTRONICS [ STMICROELECTRONICS ]
