Dual differential comparator for 5 V and 12 V rails
The TLC372CPW is a dual differential comparator with a single supply range of 3 V to 16 V and dual supplies of ±1.5 V to ±8 V.
5 pA input bias — what it means for high-impedance sensing
The 5 pA maximum input bias current at 5 V is the headline spec for any design where the source impedance is high — think photodiode transimpedance, pH electrode buffers, or resistor dividers in the megohm range. Stack the error budget: a 10 MΩ source sees only 50 µV of offset from bias current, negligible compared to the 5 mV input offset voltage. For precision threshold circuits, the offset itself sets the floor; the bias contribution is effectively zero.
400 µA quiescent — power budget for always-on comparators
At 400 µA maximum quiescent for both comparators, the TLC372CPW is not the lowest-power option on the market, but it is well within the budget for a multi-channel monitor on a 12 V industrial rail. For battery-powered gear that spends most of its time asleep, the 400 µA figure means the comparator bank draws about 4.8 mW at 12 V — acceptable for a sensor node that wakes periodically, though a micropower comparator would stretch battery life further.
0°C to 70°C — indoor and office environments only
The commercial temperature range limits the TLC372CPW to applications where the ambient stays between freezing and 70°C — office equipment, appliances, indoor instrumentation, and benchtop gear. It is not rated for automotive under-hood, outdoor telecom cabinets, or factory-floor enclosures without active cooling. If the design lives in a conditioned space, the 0°C to 70°C window is fine; for anything harsher, look at the industrial-grade siblings in the LinCMOS family.
8-TSSOP footprint and surface-mount assembly
Housed in an 8-TSSOP package with a 4.40 mm body width and 0.65 mm pin pitch, the TLC372CPW is a straightforward surface-mount part for standard reflow profiles. The supplier device package is 8-TSSOP, and the mounting type is surface mount. No thermal pad or special footprint is required — a basic land pattern matching the 8-TSSOP outline is sufficient. The part ships in tube, so plan for tube-to-reel transfer if your pick-and-place line expects tape-and-reel input.
Active lifecycle and compliance
It is ROHS3 compliant, which covers the current EU RoHS exemption list. For new designs, the active status means no imminent obsolescence risk.