LM2903W STMicroelectronics, LM2903W Datasheet - Page 7
LM2903W
Manufacturer Part Number
LM2903W
Description
Low power dual voltage comparator
Manufacturer
STMicroelectronics
Datasheet
1.LM2903W.pdf
(13 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM2903WYDT
Manufacturer:
ST
Quantity:
20 000
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
7/13