LMC7211 Tiny CMOS Comparator with Rail-to-Rail Input and Push-Pull Output
September 1999
LMC7211
Tiny CMOS Comparator with Rail-to-Rail Input and
Push-Pull Output
General Description
The LMC7211 is a micropower CMOS comparator available
in the space saving SOT23-5 package. This makes the com-
parator ideal for space and weight critical designs. The
LMC7211 is supplied in two offset voltage grades, 5 mV and
15 mV.
The main benefits of the Tiny package are most apparent in
small portable electronic devices, such as mobile phones,
pagers, notebook computers, personal digital assistants,
and PCMCIA cards. The rail-to-rail input voltage makes the
LMC7211 a good choice for sensor interfacing, such as light
detector circuits, optical and magnetic sensors, and alarm
and status circuits.
The Tiny Comparator’s outside dimensions (length x width x
height) of 3.05mm x 3.00mm x 1.43mm allow it to fit into tight
spaces on PC boards.
Features
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Tiny SOT 23-5 package saves space
Package is less than 1.43 mm thick
Guaranteed specs at 2.7V, 5V, 15V supplies
Typical supply current 7 µA at 5V
Response time of 4 µs at 5V
LMC7211 — push-pull output
Input common-mode range beyond V− and V+
Low input current
Applications
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Battery Powered Products
Notebooks and PDAs
PCMCIA cards
Mobile Communications
Alarm and Security circuits
Direct Sensor Interface
Replaces amplifiers used as comparators with better
performance and lower current
Connection Diagrams
8-Pin SO-8
5-Pin SOT23-5
DS012337-1
DS012337-2
Top View
Top View
Package
Ordering
Information
LMC7211AIM
LMC7211AIMX
LMC7211BIM
LMC7211BIMX
LMC7211AIM5
LMC7211AIM5X
LMC7211BIM5
LMC7211BIM5X
NSC Drawing
Number
M08A
M08A
M08A
M08A
MA05A
MA05A
MA05A
MA05A
Package
Marking
LM7211AIM
LM7211AIM
LM7211BIM
LM7211BIM
C00A
C00A
C00B
C00B
Rails
Transport Media
8-Pin SO-8
2.5k Units Tape and Reel
Rails
2.5k Units tape and Reel
1k Units Tape and Reel
3k Units Tape and Reel
1k Units Tape and Reel
3k Units Tape and Reel
5-Pin SOT 23-5
© 1999 National Semiconductor Corporation
DS012337
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
