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LM161/LM361
High Speed Differential Comparators
High Speed Differential Comparators
General Description
The LM161/LM361 is a very high speed differential input,
complementary TTL output voltage comparator with im-
proved characteristics over the SE529/NE529 for which it is
a pin-for-pin replacement. The device has been optimized for
greater speed performance and lower input offset voltage.
Typically delay varies only 3 ns for over-drive variations of 5
mV to 500 mV. It may be operated from op amp supplies
(
complementary TTL output voltage comparator with im-
proved characteristics over the SE529/NE529 for which it is
a pin-for-pin replacement. The device has been optimized for
greater speed performance and lower input offset voltage.
Typically delay varies only 3 ns for over-drive variations of 5
mV to 500 mV. It may be operated from op amp supplies
(
±
15V).
Complementary outputs having maximum skew are pro-
vided. Applications involve high speed analog to digital con-
verters and zero-crossing detectors in disk file systems.
vided. Applications involve high speed analog to digital con-
verters and zero-crossing detectors in disk file systems.
Features
n
Independent strobes
n
Guaranteed high speed:
20 ns max
n
Tight delay matching on both outputs
n
Complementary TTL outputs
n
Operates from op amp supplies:
±
15V
n
Low speed variation with overdrive variation
n
Low input offset voltage
n
Versatile supply voltage range
Connection Diagrams
Dual-In-Line Package
00570802
Top View
Order Number LM361M, LM361MX or LM361N
See NS Package Number M14A or N14A
Metal Can Package
00570803
Order Number LM161H/883 or LM361H
See NS Package Number H10C
Logic Diagram
00570804
*Output is low when current is drawn from strobe pin.
August 2000
LM161/LM361
High
Speed
Differential
Comparators
© 2004 National Semiconductor Corporation
DS005708
www.national.com
21
GTO24001
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