Philips Semiconductors Linear Products

Product specification

LM219/319

Dual voltage comparator

277

August 31, 1994

853-0928 13721

DESCRIPTION

The LM319 series are precision high-speed dual comparators

fabricated on a single monolithic chip. They are designed to operate

over a wide range of supply voltages down to a single 5V logic

supply and ground. Further, they have higher gain and lower input

currents than devices like the

µA710. The uncommitted collector of

the output stage makes the LM319 compatible with RTL, DTL, and

TTL as well as capable of driving lamps and relays at currents up to

25mA.

Although designed primarily for applications requiring operation from

digital logic supplies, the LM319 series are fully specified for power

supplies up to

±15V. It features faster response than the LM111 at

the expense of higher power dissipation. However, the high-speed,

wide operating voltage range and low package count make the

LM319 much more versatile than older devices like the

µA711.

FEATURES

PIN CONFIGURATION

1

2

3

4

5

6

7

8

14

13

12

11

10

9

NC

NC

GND 1

+ INPUT 1

– INPUT 1

V–

OUTPUT 2

NC

OUTPUT 1

V+

– INPUT 2

+ INPUT 2

GND 2

TOP VIEW

D, N Packages

NC

EQUIVALENT SCHEMATIC

Q1

R1

3.5K

R2

4K

R3

4K

R6

3K

Q4

Q3

Q2

–

+

INPUTS

R4

3K

R5

3K

Q6

R8

2K

Q22

Q5

R23

4K

R22

60

R20

3.6K

R9

18K

R18

1.9K

Q21

Q20

Q19

R19

250

Q18

R2

900

R24

250

R25

600

TO OTHER

HALF

R7

3K

Q9

Q8

Q7

C1

18pF

R10

170

R11

13K

R12

13K

Q15

Q10

Q13

R13

600

C14

Q12

R14

2K

Q11

Q16

R15

300

R16

600

Q12

R17 3

OUTPUT

V–

GND

V+