© Semiconductor Components Industries, LLC, 2005

July, 2005 − Rev. 5

1

Publication Order Number:

LM211/D

LM211, LM311

Single Comparators

The ability to operate from a single power supply of 5.0 V to 30 V or

$15 V split supplies, as commonly used with operational amplifiers,

makes the LM211/LM311 a truly versatile comparator. Moreover, the

inputs of the device can be isolated from system ground while the

supply. This flexibility makes it possible to drive DTL, RTL, TTL, or

MOS logic. The output can also switch voltages to 50 V at currents to

50 mA, therefore, the LM211/LM311 can be used to drive relays,

lamps or solenoids.

Features

Figure 1. Typical Comparator Design Configurations

Split Power Supply with Offset Balance

Single Supply

Ground−Referred Load

Load Referred to Positive Supply

Strobe Capability

−

Output

Inputs

1

2

3

4

5

6

7

8

5.0k

3.0k

Output

Output

Output

Output

Output

Inputs

Inputs

Inputs

Inputs

Inputs

2

3

2

3

2

3

2

3

2

3

4

4

4

4

4

7

8

1

Input polarity is reversed when

GND pin is used as an output.

7

1

8

8

7

6

1

1.0k

TTL Strobe

1

7

8

Load Referred to Negative Supply

1

7

8

Input polarity is reversed when

GND pin is used as an output.

−

+

+

+

+

+

+

−

−

−

−

GND

Inputs

Output

Balance/Strobe

Balance

(Top View)

1

2

3

4

8

7

6

5

PIN CONNECTIONS

+

−

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

ORDERING INFORMATION

http://onsemi.com

PDIP−8

N SUFFIX

CASE 626

1

8

SOIC−8

D SUFFIX

CASE 751

1

8

MARKING

DIAGRAMS

x

= 2 or 3

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W

= Work Week

G

= Pb−Free Package

G

= Pb−Free Package

1

8

LM311AN

AWL

YYWWG

LMx11

ALYW

G

1

8