LM2903W datasheet(6/13 Pages) STMICROELECTRONICS

Numer części	LM2903W

Szczegółowy opis	Low-power dual voltage comparator

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Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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6 / 13 page

Typical application schematics

LM2903W

6/13

Doc ID 022662 Rev 1

4

Typical application schematics

Figure 7.

Basic comparator

Figure 8.

Driving CMOS

V

CC

= 5 V

15 k

Ω

V

O

+V

(ref)

1/2

LM2903

-V

(ref)

5 V

100 k

Ω

&

1/ 2

LM2903

+V

(ref)

-V

(ref)

Figure 9.

Driving TTL

Figure 10.

Low frequency op-amp

5 V

10 k

Ω

+V

(ref)

&

1/ 2

LM2903

-V

(ref)

5 V

15 k

Ω

e

o

0.5

μF

100 k

Ω

e

l

1 k

Ω

~

1/2

LM2903

A

V = 100

Figure 11.

Low frequency op-amp

Figure 12.

Transducer amplifier

5 V

15 k

Ω

0.5

μF

100 k

Ω

1 k

Ω

~

2N 2222

(e

o = 0 V for el = 0 V)

1/ 2

LM2903

e

o

e

l

A

V = 100

5 V

10 k

Ω

e

o

20 M

Ω

3 k

Ω

Magnetic pick-up

10 k

Ω

1/ 2

LM2903

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