LM339
Description
The LM339 consists of four independent voltage comparators. These were designed specifically to operate
from a single power supply over a wide range of voltages. Operation from split power supplies is also possible
and the low power supply curr ent drain is independent of the magnitude of the power supply voltage. The
outputs can be connected to other open - collector outputs to achieve wired -AND relationships.
Features
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Wide supply voltage range
Low supply current drain independent of supply voltage.
Low input biasing current
Low input offset current
Low input offset voltage
Input common-mode voltage range includes GND
Differential input voltage range equal to the power supply voltage
Low output saturation voltage
Output voltage compatible with TTL, MOS and CMOS logic
14
1
DIP - 14
14
1
SOP – 14
Package
Internal Block Digram
PIN CONNECTIONS
symbol (each comparator)
Output 2
Output 1
VCC
– Input 1
+ Input 1
– Input 2
+ Input 2
1
2
3
4
5
6
7
14
13
12
Output 3
Output 4
Gnd
+ Input 4
– Input 4
+ Input 3
– Input 3
IN+
OUT
IN–
*
)
*
)
1
4
)
*
)
*
11
10
9
8
2
3
(Top View)
BEIJING ESTEK ELECTRONICS CO.,LTD
1
ESTEK [ Estek Electronics Co. Ltd ]
