LM2903W STMicroelectronics, LM2903W Datasheet - Page 7

• 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

LM2903W
Figure 13. Low frequency op- amp with offset
Figure 15. Limit comparator
Figure 17. Crystal controlled oscillator
e
l
~
R
S
V
V
high
low
0.1 μF
(ref)
(ref)
e
I
R
200 kΩ
200 kΩ
~
2
adjust
Offset adjust
2R
R
2R
R
1
S
S
S
V
LM2903
CC
f = 100 kHz
100 kΩ
1/2
1 MΩ
= 15 V
LM2903
LM2903
1/2
1/ 2
5 V
1 kΩ
100 kΩ
10 kΩ
2 kΩ
V
CC
1 MΩ
LM2903
e
1/ 2
o
100 kΩ
(12 V)
V
R1
CC
15 kΩ
0.5 μ F
0
2N 2222
Lamp
Doc ID 022662 Rev 1
2N 2222
5 V
e
o
Figure 14. Zero crossing detector (single
Figure 16. Split-supply applications - zero
Figure 18. Comparator with a negative
e
l
5.1 kΩ
e
e
I
I
power supply)
crossing detector
~
reference
~
1N4148
5.1 kΩ
Typical application schematics
5 V
100 kΩ
LM2903
LM2903
10 kΩ
1/2
1/2
15 V
15 V
15 V
15 V
100 kΩ
LM2903
20 MΩ
1/ 2
5 V
5.1 kΩ
5.1 kΩ
e
e
o
o
5.1 kΩ
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