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.