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Texas Instruments LM2901AVQDRG4Q1 — Analog & Data Acquisition

LM2901AVQDRG4Q1 Quad Differential Comparator, AEC-Q100

MPNLM2901AVQDRG4Q1
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Texas Instruments LM2901AVQDRG4Q1, Automotive AEC-Q100, Quad Differential Comparator, 14-SOIC (0.154", 3.90mm Width), -40°C to 125°C, 2V to 36V supply, Open-Collector Output.

$0.8200Ref. price · indicative, final on quote
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM2901AVQDRG4Q1 specifications
ParameterValue
TypeDifferential
SeriesAutomotive, AEC-Q100
Output typeCMOS, MOS, Open-Collector, TTL
MountingSurface Mount
Voltage - input offset2mV @ 5V
Voltage - supply, single (Dual (±))2V ~ 36V, ±1V ~ 18V
Output current20mA
Current - quiescent2.5mA
Current - input bias0.25µA @ 5V
Operating temperature-40°C~125°C
PackageTape & Reel (TR); Cut Tape (CT)
Case14-SOIC (0.154\", 3.90mm Width)
Number of elements4

Product details

What the ratings mean for the BOM

The 2.5 mA maximum quiescent current per package is modest for a quad comparator — it keeps the thermal load low in a sealed ECU, but it is not a micropower part for always-on sensor nodes. Input offset voltage is 2 mV maximum at 5 V, which is adequate for threshold detection and zero-crossing circuits but not for precision window comparators where you would reach for an op-amp.

The 14-SOIC (0.154" body width, 3.90 mm) is a standard surface-mount footprint shared across many comparator and op-amp quads. The supplier device package is also 14-SOIC. The part is offered in Tape & Reel and Cut Tape options, which suits both prototype assembly and production pick-and-place. No special thermal management is needed at the 2.5 mA quiescent level.

It is ROHS3 compliant. For BOM planning, this part is a safe choice for long-life automotive programs.

Frequently asked questions

Does LM2901AVQDRG4Q1 meet AEC-Q100 automotive qualification?

Yes, the series is explicitly listed as Automotive, AEC-Q100. The part is qualified for automotive-grade applications including under-hood and engine-bay environments.

Is LM2901AVQDRG4Q1 a drop-in replacement for LM2901VQDRG4Q1?

The base product number is LM2901, and the package and pinout are identical across the LM2901 family in the 14-SOIC footprint. The 'AV' variant carries the full -40°C to 125°C temperature range and AEC-Q100 qualification; verify the 'V' variant's temperature grade against your BOM requirement before substituting.

What is the difference between LM2901 and LM339?

Both are quad comparators with open-collector outputs in similar pinouts. The LM2901 series is specified over the -40°C to 125°C automotive temperature range, while the LM339 is typically rated for 0°C to 70°C or -40°C to 85°C commercial/industrial grades. The LM2901 also has a wider supply range (2 V to 36 V) and tighter input offset voltage specifications in some variants. For automotive BOMs, the LM2901AVQDRG4Q1 is the correct choice.