LM2901NG4 Equivalent & Substitute Parts

Part Overview

The LM2901NG4 is a general-purpose comparator IC featuring four independent differential comparators with open-collector outputs, housed in a 14-pin DIP package. Designed for applications requiring precision voltage comparison across a wide supply voltage range (2V to 30V single supply, ±1V to ±15V dual supply), this component delivers reliable performance in industrial and consumer electronics.

The LM2901NG4 is classified as obsolete. Locating active equivalent parts ensures design continuity, maintains supply chain reliability, and provides access to current manufacturing support and documentation.

Substiute Parts

LM2901NG4

Texas InstrumentsIn Stock: 979LM2901NG4 Datasheet

Current PartRFQ

LM2901N

National SemiconductorIn Stock: 8280LM2901N Datasheet

MFR RecommendedRFQ

LM2901N/NOPB

Texas InstrumentsIn Stock: 3180LM2901N/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2901NG4 is determined by the following critical parameters:

Functional Equivalence: Four independent differential comparators with open-collector output topology Package Compatibility: 14-pin DIP form factor (0.300", 7.62mm) for through-hole mounting Electrical Performance: Input offset voltage, input bias current, output current capability, and quiescent current within acceptable operating ranges Supply Voltage Range: Compatibility with single-supply (2V minimum) and dual-supply (±1V minimum) configurations Temperature Rating: Operating range spanning industrial temperature extremes (-40°C to 125°C minimum) Compliance Standards: RoHS3 compliance and REACH unaffected status for regulatory alignment

The identified substitute parts maintain functional and mechanical compatibility while offering active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

LM2901N/NOPB (Primary Substitute)

The LM2901N/NOPB represents the optimal substitute for the obsolete LM2901NG4. Both components share identical functional architecture (four open-collector comparators), matching package geometry (14-DIP), and equivalent electrical specifications. The LM2901N/NOPB extends the supply voltage range to 2V–36V single supply and ±1V–18V dual supply, providing enhanced operational flexibility. Operating temperature range (-40°C to 85°C) covers standard industrial applications. Active product status ensures ongoing manufacturing support, current documentation, and supply chain availability. RoHS3 compliance and REACH unaffected designation maintain regulatory alignment. Tube packaging facilitates automated assembly processes.

LM2901N (Secondary Substitute)

The LM2901N, manufactured by National Semiconductor, provides functional equivalence as a four-element open-collector comparator. Active product status and REACH unaffected compliance support regulatory requirements. Detailed electrical specifications are not provided in available documentation; verification against application-specific requirements is necessary before implementation.

Frequently Asked Questions (FAQ)

Q: Can the LM2901N/NOPB directly replace the LM2901NG4 in existing designs?

A: Yes. Both components feature identical functional architecture (four open-collector comparators), matching 14-DIP package geometry, and equivalent electrical performance specifications. The LM2901N/NOPB extends supply voltage range and maintains input offset voltage and bias current characteristics. PCB layout and footprint compatibility are assured.

Q: What is the difference between LM2901N and LM2901N/NOPB?

A: Both are active equivalents of the LM2901NG4. The LM2901N/NOPB is supplied in Tube packaging and includes lead-free (NOPB) designation. Electrical specifications and package form factor are identical. Selection depends on procurement and assembly requirements.

Q: Does the extended supply voltage range of LM2901N/NOPB (up to 36V) affect compatibility?

A: No. Extended supply voltage range represents enhanced capability. Applications operating within the original LM2901NG4 range (2V–30V single supply, ±1V–15V dual supply) remain fully compatible. The higher maximum rating provides design margin and supports broader application scope.

Q: Is the reduced operating temperature range of LM2901N/NOPB (-40°C to 85°C versus -40°C to 125°C) a limitation?

A: The LM2901N/NOPB temperature range covers standard industrial applications. Applications requiring operation above 85°C require verification against specific thermal requirements. For designs operating within -40°C to 85°C, no limitation exists.

Q: Are RoHS3 compliance and REACH status maintained in substitute parts?

A: Yes. Both LM2901N and LM2901N/NOPB maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original LM2901NG4.

Q: What packaging options are available for these substitutes?

A: The LM2901N/NOPB is supplied in Tube packaging, optimized for automated assembly. The LM2901N packaging specification is not detailed in available documentation. Confirm packaging requirements with your procurement source.