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Texas Instruments LM139ADR — Analog & Data Acquisition

TI LM139ADR Quad Differential Comparator, -55°C to 125°C

MPNLM139ADR
End of Life

Texas Instruments LM139ADR, quad differential voltage comparator, 14-SOIC surface-mount, -55°C to 125°C, 2V to 30V single-supply, open-collector/CMOS/TTL output, Tape & Reel.

$2.72Ref. price · indicative, final on quote
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM139ADR specifications
ParameterValue
TypeDifferential
Output typeCMOS, MOS, Open-Collector, TTL
MountingSurface Mount
Voltage - input offset2mV @ 30V
Voltage - supply, single (Dual (±))2V ~ 30V, ±1V ~ 15V
Output current20mA
Current - quiescent2mA
Current - input bias0.1µA @ 5V
Operating temperature-55°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
Case14-SOIC (0.154\", 3.90mm Width)
Number of elements4

Product details

Supply and interface flexibility

Runs on anything from a 2V logic rail to a 30V industrial bus without a separate regulator. Outputs are open-collector, CMOS, MOS, or TTL compatible — pull them up to whatever logic voltage the downstream gate needs. Input offset voltage is 2 mV max at 30V, and input bias current stays under 0.1 µA at 5V, so high-impedance sensor signals do not load down. Quiescent current maxes at 2 mA for all four channels — negligible in a battery-backed system.

14-SOIC (0.154", 3.90 mm width) — a standard surface-mount footprint shared with many quad op-amps and comparators. No exotic land pattern; fits a standard SOIC-14 layout.

Frequently asked questions

What are the specifications and datasheet for LM139ADR?

Engineers need to verify compatibility with their circuit design.

How much does LM139ADR cost and where can I buy it?

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Is LM139ADR in stock and what is its lead time?

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What is the equivalent or replacement for LM139ADR?

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What is the package and footprint for LM139ADR?

Design engineers require physical dimensions for PCB layout.

Can LM139ADR be used as a replacement for LM339?

Buyers often need to substitute common parts and need to know compatibility.