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Texas Instruments LM3302D — Analog & Data Acquisition

LM3302D Quad Differential Comparator, 14-SOIC, -40 to 85°C

MPNLM3302D
End of Life

Texas Instruments LM3302D, General Purpose Quad Differential Comparator, 14-SOIC (0.154", 3.90mm Width), Surface Mount, Open-Collector Output, 2V to 28V Supply, -40°C to 85°C.

$0.93Ref. price · indicative, final on quote
Texas Instruments LM3302D datasheet (PDF)
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM3302D specifications
ParameterValue
TypeGeneral Purpose
Output typeCMOS, MOS, Open-Collector, TTL
MountingSurface Mount
Voltage - input offset20mV @ 28V
Voltage - supply, single (Dual (±))2V ~ 28V, ±1V ~ 14V
Output current20mA
Current - quiescent800µA
Current - input bias0.5µA @ 5V
Operating temperature-40°C ~ 85°C
PackageTube
Case14-SOIC (0.154\", 3.90mm Width)
Number of elements4

Product details

Quad comparator for mixed-voltage and industrial rails

Four open-collector outputs let you wire-OR multiple channels or translate between 5V logic and a 24V PLC input card without a level shifter. Supply range spans 2V to 28V (or ±1V to ±14V split), so it runs off the same rail as the sensors it monitors — no secondary regulator needed.

Output current is 20mA typical per channel. Quiescent current is 800µA maximum across all four comparators.

14-SOIC body, 3.90 mm wide, 0.154" pitch. Surface-mount reflow compatible. Tube shipment, so plan for pick-and-place tray loading if you are running high-volume reels.

Frequently asked questions

Is LM3302D equivalent to LM339?

LM3302D is functionally similar to the LM339 family — both are quad open-collector comparators in 14-SOIC. The key difference is the supply range: LM3302D runs from 2V to 28V, while LM339 typically starts at 2V and goes to 36V. Check your rail maximum before substituting.

Is LM3302D RoHS compliant?

Yes — ROHS3 compliant per the listing. No lead, mercury, cadmium, or other restricted substances above threshold.

What is the difference between LM3302 and LM339?

The LM3302D is a lower-voltage variant of the LM339 quad comparator. LM3302D supply max is 28V; LM339 goes to 36V. Both share the same pinout and open-collector output stage. For 24V industrial rails either works; for 28V or higher rails the LM339 is the correct choice.