text.skipToContent text.skipToNavigation


Tiny CMOS Comparator with Rail-to-Rail Input and Open Drain Output


Package | PIN: D | 8
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $1.47
10-24 $1.32
25-99 $1.23
100-249 $1.07
250-499 $0.99
500-749 $0.83
750-999 $0.68
1000+ $0.62


  • 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

All trademarks are the property of their respective owners.

Texas Instruments  LMC7221AIM/NOPB

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.