LM7221 is a micropower CMOS comparator available in two packages, SOT23-5 and SO-8. It is guaranteed to operate with supply voltages ranging from 2.7V to 15V. Its typical supply current is 7µA and its response time is 4µs. The output is open drain type.
The LMC7221 is a tiny, low‑power CMOS comparator designed for space‑ and weight‑critical designs. It is available in a 5‑pin SOT‑23‑5 package (0.120 × 0.118 in) and an 8‑pin SO‑8 package, both with rail‑to‑rail input range and an open‑drain output that can be pulled up to voltages above the supply.
Typical applications include mixed‑voltage battery‑powered products, notebooks, PCMCIA cards, mobile communications, alarm and security circuits, and direct sensor interfaces. Key performance figures are a typical supply current of 7 µA at 5 V, input offset voltage of 5 mV or 15 mV, and a short‑circuit output current rating of 40 mA.
| Typical supply current | 7 µA at 5 V |
|---|---|
| Input offset voltage | 5 mV or 15 mV |
| Output short‑circuit current | 40 mA |
The typical supply current is 7 µA when powered at 5 V.
The device can tolerate up to 40 mA of short‑circuit current on the output.
Two grades are offered: 5 mV and 15 mV input offset voltage.