LM2903W STMicroelectronics, LM2903W Datasheet - Page 8

• Manufacturer Part Number: LM2903W
• Description: Low power dual voltage comparator
• Manufacturer: STMicroelectronics

Specifications of LM2903W

• Low Input Bias Current: 25 nA typ.
• Low Input Offset Current: ±5 nA typ.
• Low Output Saturation Voltage: 250 mV typ. (IO= 4 mA)
• Esd Internal Protection: 2 kV

Typical application schematics
Figure 19. Time delay generator
Figure 20. Two-decade high-frequency VCO
8/13
V
Frequency control
V
C1
CC
Input gating signal
voltage input
V
V
V
Vcontrol
3
2
1
0
t t
0 1
V
CC
t
0
2
t
o
t
3
100 kΩ
50 kΩ
t
A
t
4
+250 mV
700 Hz
V
V
(ref.)
CC
t
20 kΩ
= + 30 V
0.1 μF
10 kΩ
10 kΩ
f
o
V control
100 kHz
20 kΩ
10 kΩ
LM2903
+50 V
1/2
LM2903
Doc ID 022662 Rev 1
1/ 2
500 pF
15 kΩ
0.001 μ F
V
51 kΩ
51 kΩ
51 kΩ
C1
V
LM2903
1
1/ 2
V
V
V
CC
V
200 kΩ
3
2
3 kΩ
C C
0.01 μF
5.1 kΩ
= +15 V
10 kΩ
10 kΩ
10 kΩ
V
CC
/2
V
CC
/2
LM2903
LM2903
LM2903
100 kΩ
LM2903
1/2
1/2
1/2
10 MΩ
10 MΩ
10 MΩ
1/ 2
V
CC
3 kΩ
3 kΩ
3 kΩ
3 kΩ
V
V
V
O1
O2
03
Output 2
Output 1
V
V
V
CC
t
CC
t
CC
LM2903W
t
o
o
0
t
1
t
2
t
3