LMC7221
www.ti.com SNOS748E – SEPTEMBER 1999 – REVISED MARCH 2013 LMC7221 Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output
Check for Samples: LMC7221 FEATURES 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. 1 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 ОјA at 5V
Response time of 4 Ојs 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 The open drain output can be pulled up with a
resistor to a voltage which can be higher or lower …
