General-purpose comparators: wide-supply open-drain and LM339 second source

COSINE general-purpose comparators cover automotive, industrial, sensor, and consumer designs that need 2.5–36 V open-drain multi-channel thresholds. For low-voltage high-speed / low-power / nano-power splits, use the other comparator family notes published alongside this one.

Datasheets from Jarwey. LM339 / LM2903 / LM393 are common second-source evaluation anchors—verify before lock-in.

Product features

Low offset, low latency, speed/power balance, wide supply range.

Applications (vendor-stated)

Automotive · industrial · sensors · consumer electronics.

General-purpose comparator table

Also listed: COS331 (1 ch), COS339 (4 ch).

Checklist before freeze

1. Rail: do you need up to 36 V?
2. Channel count: dual COS393 / LM2903SR vs quad LM339SR.
3. Open-drain pull-up: resistor, level, EMC.
4. Speed tier: if 67 ns is not enough, move to HS/LP families instead of forcing this tier.
5. Samples: request datasheet and samples from Jarwey.

Pages & contact

• COS393 · LM339SR · LM2903SR

kerry.w@jarwey.cn · Contact.