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LMC7221 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LMC7221
Description  Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LMC7221 Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
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LMC7221
Tiny CMOS Comparator with Rail-To-Rail Input and Open
Drain Output
General Description
The LM7221 is a micropower CMOS comparator available in
the space saving SOT23-5 package. This makes this com-
parator ideal for space and weight critical designs. The
LMC7221 is also available in the SO-8 package. The
LMC7221 is supplied in two offset voltage grades, 5 mV and
15 mV.
The open drain output can be pulled up with a resistor to a
voltage which can be higher or lower than the supply
voltage — this makes the part useful for mixed voltage sys-
tems.
For a tiny comparator with a push-pull output, please see the
LMC7211 datasheet.
Features
n Tiny SOT 23-5 package saves space
n Package is less than 1.43 mm thick
n Guaranteed specs at 2.7V, 5V, 15V supplies
n Typical supply current 7 µA at 5V
n Response time of 4 µs at 5V
n LMC7221 — open drain output
n Input common-mode range beyond V− and V+
n Low input current
Applications
n Mixed voltage battery powered products
n Notebooks and PDAs
n PCMCIA cards
n Mobile communications
n Alarm and security circuits
n Driving low current LEDs
n Direct sensor interface
Connection Diagrams
Ordering Information
Package
Ordering
NSC Drawing
Package
Transport Media
Information
Number
Marking
8-Pin SO-8
LMC7221AIM
M08A
LMC7221AIM
Rails
LMC7221AIMX
M08A
LMC7221AIM
2.5k Units Tape and Reel
LMC7221BIM
M08A
LMC7221BIM
Rails
LMC7221BIMX
M08A
LMC7221BIM
2.5k Units Tape and Reel
5-Pin SOT 23-5
LMC7221AIM5
MA05A
C01A
1k Units Tape and Reel
LMC7221AIM5X
MA05A
C01A
3k Units Tape and Reel
LMC7221BIM5
MA05A
C01B
1k Units Tape and Reel
LMC7221BIM5X
MA05A
C01B
3k Units Tape and Reel
8–Pin SO-8
DS012346-1
Top View
5-Pin SOT23-5
DS012346-2
Top View
September 1999
© 1999 National Semiconductor Corporation
DS012346
www.national.com


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