1FEATURES
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.