LMC7221_14 Datasheet, PDF (1/21 Pages) Texas Instruments – LMC7221 Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output

LMC7221
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SNOS748E – SEPTEMBER 1999 – REVISED MARCH 2013
LMC7221 Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output
Check for Samples: LMC7221
FEATURES
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•2 Tiny 5-Pin SOT-23 package saves space
• Package is less than 1.43 mm thick
• Ensured specs at 2.7V, 5V, 15V supplies
• Typical supply current 7 μA at 5V
• Response time of 4 μs at 5V
• LMC7221—open drain output
• Input common-mode range beyond V^− and V⁺
• Low input current
APPLICATIONS
• Mixed voltage battery powered products
• Notebooks and PDAs
• PCMCIA cards
• Mobile communications
• Alarm and security circuits
• Driving low current LEDs
• Direct sensor interface
DESCRIPTION
The LM7221 is a micropower CMOS comparator
available in the space saving 5-Pin SOT-23 package.
This makes this comparator ideal for space and
weight critical designs. The LMC7221 is also
available in the 8-Pin SOIC 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 systems.
For a tiny comparator with a push-pull output, please
see the LMC7211 datasheet.
Connection Diagram
8-Pin SOIC - Top View
5-Pin SOT-23 - Top View
Figure 1. See Package Number D0008A
Figure 2. See Package Number DBV0005A
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated