TL/H/12337
L
September 1995
LMC7211
Tiny CMOS Comparator with Rail-to-Rail Input
General Description
The LMC7211 is a micropower CMOS comparator available
in the space saving SOT23-5 package. This makes the
comparator ideal for space and weight critical designs. The
LMC7211 is available in SO-8 surface mount packages and
in conventional 8-pin DIP packages. The LMC7211 is sup-
plied 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
Y
Tiny SOT 23-5 package saves space
Y
Package is less than 1.43 mm thick
Y
Guaranteed specs at 2.7V, 5V, 15V supplies
Y
Typical supply current 7
m
A at 5V
Y
Response time of 4
m
s at 5V
Y
LMC7211Dpush-pull output
Y
Input common-mode range beyond V
b
and V
a
Y
Low input current
Applications
Y
Battery Powered Products
Y
Notebooks and PDAs
Y
PCMCIA cards
Y
Mobile Communications
Y
Alarm and Security circuits
Y
Direct Sensor Interface
Y
Replaces amplifiers used as comparators with better
performance and lower current
Connection Diagrams
8-Pin DIP/SO-8
TL/H/12337–1
Top View
5-Pin SOT23-5
TL/H/12337–2
Top View
Package
Ordering
Information
NSC Drawing
Number
Package
Marking
Transport Media
8-Pin DIP
LMC7211AIN
N08E
LMC7211AIN
rails
8-Pin DIP
LMC7211BIN
N08E
LMC7211BIN
rails
8-Pin SO-8
LMC7211AIM
M08A
LM7211AIM
rails
8-Pin SO-8
LMC7211BIM
M08A
LM7211BIM
rails
8-Pin SO-8
LMC7211AIMX
M08A
LM7211AIM
2.5k units tape and reel
8-Pin SO-8
LMC7211BIMX
M08A
LM7211BIM
2.5k units tape and reel
5-Pin SOT 23-5
LMC7211AIM5X
MA05A
C00A
3k units tape and reel
5-Pin SOT 23-5
LMC7211BIM5X
MA05A
C00B
3k units tape and reel
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.