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Best Alternatives to LM293DR

Package: 8-SOIC (0.154", 3.90mm Width)Texas InstrumentsComparatorsPackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Type: DifferentialNumber of Elements: 2Output Type: CMOS, MOS, Open-Drain, TTLVoltage - Supply, Single/Dual (±): 2V ~ 36V, ±1V ~ 18V

The LM293DR is a standard dual differential comparator for industrial applications. Direct replacements are widely available, often with improved temperature ranges and automotive qualifications, such as the LM2903 series.

AI replacement insight

Electrical risklow

Most alternatives have similar or better electrical specs, but check input offset voltage.

Package risklow

SOIC-8 is a standard package with many pin-compatible options.

Sourcing risklow

This is a multi-source, high-volume component family.

Can it be replaced directly?

Yes, the Texas Instruments LM2903AVQDRQ1 is a direct, upgraded replacement that is pin-compatible and offers superior temperature performance.

Best replacement path

Upgrade to an automotive-grade LM2903 series part like LM2903AVQDRQ1 for improved temperature range and reliability.

Main risk

Substituting with a commercial-grade part (like the LM393 series) in an industrial application, which can lead to failure at temperature extremes.

Recommended alternatives

3
LM2903AVQDRQ1 package
LM2903AVQDRQ1

Texas Instruments

Needs validationlow risk

Upgraded automotive-grade version with a wider temperature range.

View details

Alternative comparison matrix

Feature / factorLM293DRLM2903AVQDRQ1NCV2903DR2GLM393DR2GCompatibility / risk
PackageSOIC-8SOIC-8SOIC-8SOIC-8SOIC-8 — Form and pinout match.; NCV2903DR2G: Form and pinout match.; LM393DR2G: Form and pinout match.
Temperature-25°C to 85°C-40°C to 125°C-40°C to +125°C0°C to +70°C-40°C to 125°C / -40°C to +125°C / 0°C to +70°C — Candidate has a wider industrial/automotive range.; NCV2903DR2G: Candidate has a wider automotive temperature range.; LM393DR2G: Candidate has a much narrower commercial temperature range.
Voltage2 V to 36 V2V to 36V9.0 mV (Max)2.0 V to 36 V2V to 36V / 9.0 mV (Max) / 2.0 V to 36 V — Supply voltage range is identical.; NCV2903DR2G: Slightly higher max input offset voltage; unlikely to be an issue for most applications.; LM393DR2G: Supply voltage range is identical.
ApplicationIndustrialAutomotive (AEC-Q100)--Automotive (AEC-Q100) — Candidate is qualified for more demanding automotive use.

Application & sourcing insights

Questions & answers

The LM2903AVQDRQ1 from Texas Instruments is an excellent upgrade, offering a wider temperature range (-40°C to 125°C) and AEC-Q100 automotive qualification while maintaining key electrical specifications and pin compatibility.