Philips Semiconductors

Product data

AU211/LM111/211/311/311B

Voltage comparator

2003 Sep 30

5

TYPICAL APPLICATIONS

INPUT

R1

3 k

Ω

BAL

R2

3 k

Ω

V+ = 5 V

TO

MOS

LOGIC

R3

10 k

Ω

V– = 10V

5

6

8

7

1

4

3

2

INPUT

+

–

LM311

+

–

LM311

V+ 5 V

R3

2 k

Ω

TTL

OUTPUT

8

7

3

2

4

1

R1

4.5 k

Ω

R2

1 k

Ω

MAGNETIC

PICKUP

+

–

LM311

V+ = 5 V

TO TTL

OUTPUT

2

3

8

7

1

4

R4

82 k

Ω

R2

47 k

Ω

C1

R1

240 k

Ω

R3

82 k

Ω

R5

1 k

Ω

Zero Detector

Driving MOS Logic

Detector for Magnetic

Transducer

TTL Interface with

High Level Logic

* Values shown are for a 0 to 30 V logic swing and a 15 V threshold.

** May be added to control speed and reduce susceptibility to noise spikes.

SL00064

Figure 3. Typical Applications