LM2901P STMicroelectronics, LM2901P Datasheet - Page 7

• Manufacturer Part Number: LM2901P
• Description: LOW POWER QUAD VOLTAGE COMPARATORS
• Manufacturer: STMicroelectronics

TYPICAL APPLICATIONS (continued)
TWO-DECADE HIGH-FREQUENCY VCO
LIMIT COMPARATOR
SPLIT-SUPPLY APPLICATIONS
ZERO CROSSING DETECTOR
e
Freque ncy c ontrol
h igh
low
I ~
V
V
voltage input
(ref)
(ref)
e
I ~
v
control
2R
R
2R
S
S
S
LM2901
1/4
LM2901
LM2901
1/4
1/4
100k
15V
15V
50k
10k
+250mV
7 00 Hz
V
V
CC
CC
(12V)
= +3 0V
20k
0.1 F
2N 2222
10k
f
o
5.1k
V
control
La mp
100kHz
e
20k
o
+5 0V
LM2901
1/4
500pF
CRYSTAL CONTROLLED OSCILLATOR
COMPARATOR WITH A NEGATIVE
REFERENCE
LM2901
1/4
V
CC
3k
e
0.01 F
5.1k
I ~
V
0.1 F
CC
200k
200k
V
/2
CC
/2
5V
LM2901
100k
f = 100kHz
1/4
V
LM2901
CC
LM2901
100k
1/4
= 15V
1/4
15V
15V
V
CC
2k
3k
e
o
Outp ut 2
Ou tput 1
V
CC
0
5.1k
LM2901
e
o
7/10