Key facts
- Model
- LMC7221
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-04
Start here
National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
The LMC7221 is a micropower CMOS comparator offered in a space‑saving SOT‑23‑5 package, with optional 8‑pin DIP and SO‑8 versions. It features rail‑to‑rail input range, open‑drain output, low supply current and short‑circuit protection, making it suitable for mixed‑voltage and battery‑powered designs.
The document provides absolute maximum ratings, electrical characteristics, AC performance, typical application information, layout guidelines, and mechanical dimensions, along with ordering and packaging details.
National Semiconductor LMC7221 specifications
| Typical supply current | 7 µA at 5 V |
|---|---|
| Input offset voltage | 5 mV or 15 mV |
| Output short‑circuit current | 40 mA |
Source: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
All National Semiconductor LMC7221 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the LMC7221 support?
The device operates from 2.7 V up to 15 V supply voltage.
From: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
What is the typical supply current at 5 V?
Typical supply current is about 7 µA at a 5 V supply.
From: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
What is the typical supply current of the LMC7221?
The typical supply current is 7 µA when powered at 5 V.
From: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
What is the maximum output short‑circuit current rating?
The device can tolerate up to 40 mA of short‑circuit current on the output.
From: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
What is the typical supply current of the LMC7221 at 5 V?
The typical supply current is about 7 µA at a 5 V supply.
From: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet
Can the open‑drain output be pulled up to a voltage higher than the supply?
Yes, the open‑drain output can be pulled up to a voltage higher or lower than the supply voltage.
From: National Semiconductor LMC7221 Tiny CMOS Comparator Datasheet