LMV339MTX Equivalent & Substitute Parts

Part Overview

The LMV339MTX is a quad general-purpose comparator manufactured by Texas Instruments, packaged in 14-TSSOP surface mount configuration. This device integrates four independent voltage comparators with CMOS, open-collector, and TTL output capabilities, designed for low-voltage applications spanning 2.7V to 5.5V supply range. The part is currently in Last Time Buy status, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

LMV339MTX

Texas InstrumentsIn Stock: 2817LMV339MTX Datasheet

Current PartRFQ

LMV339MTX/NOPB

National SemiconductorIn Stock: 2029LMV339MTX/NOPB Datasheet

DirectRFQ

BA10339F-E2

Rohm SemiconductorIn Stock: 166271BA10339F-E2 Datasheet

MFR RecommendedRFQ

BA10339FV-E2

Rohm SemiconductorIn Stock: 30173BA10339FV-E2 Datasheet

MFR RecommendedRFQ

BA2901FV-E2

Rohm SemiconductorIn Stock: 60411BA2901FV-E2 Datasheet

MFR RecommendedRFQ

BA2901SF-E2

Rohm SemiconductorIn Stock: 15563BA2901SF-E2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMV339MTX is determined by the following critical parameters:

• Number of Elements: Must be 4 independent comparators
• Output Type: Must support Open-Collector configuration
• Voltage - Supply Range: Must encompass or exceed 2.7V ~ 5.5V
• Voltage - Input Offset (Max): Must not exceed 7mV @ 5V
• Current - Input Bias (Max): Must not exceed 0.25µA @ 5V
• Operating Temperature Range: Must support -40°C ~ 85°C minimum
• Package Compatibility: Surface mount packages with equivalent pinout and thermal characteristics
• Compliance: ROHS3 compliance and MSL rating required

The substitute parts identified below meet these electrical and mechanical criteria, though packaging variants (14-TSSOP, 14-SSOP, 14-SOIC, 14-LSSOP) represent different physical implementations of functionally equivalent designs.

Parameter Comparison

Engineering Selection Recommendations

LMV339MTX/NOPB (National Semiconductor) provides direct electrical and packaging equivalence to the primary part, maintaining identical supply voltage range, input offset, bias current, and output current specifications. Product status is Active, ensuring long-term availability and support.

BA10339F-E2 and BA10339FV-E2 (Rohm Semiconductor) offer extended supply voltage range (3V ~ 36V) and improved input offset performance (5mV @ 5V). These parts are functionally compatible within the 2.7V ~ 5.5V operating window of the LMV339MTX. Package variants differ: BA10339F-E2 uses 14-SOIC, while BA10339FV-E2 uses 14-LSSOP. Both maintain ROHS3 compliance and MSL 1 rating. Output current is reduced to 16mA typical, which may require circuit evaluation for high-current applications.

BA2901FV-E2 and BA2901SF-E2 (Rohm Semiconductor) extend the operating temperature range to 125°C and 105°C respectively, and support lower minimum supply voltage (2V). These parts maintain input offset and bias current specifications matching the primary device. BA2901FV-E2 uses 14-LSSOP packaging; BA2901SF-E2 uses 14-SOIC. Output current specification remains 16mA typical. Both are ROHS3 compliant with MSL 1 rating.

All substitute parts maintain the four-element comparator architecture and open-collector output configuration required for functional equivalence. Selection should account for package footprint compatibility with existing PCB designs and output current requirements for specific load conditions.

Frequently Asked Questions (FAQ)

Q: Can BA10339F-E2 or BA10339FV-E2 directly replace LMV339MTX in existing designs?

A: Electrical substitution is valid within the 2.7V ~ 5.5V supply range. The extended voltage rating of these Rohm parts does not affect operation at LMV339MTX specifications. However, output current is reduced from 84mA to 16mA typical. Circuit designs relying on higher output current must be evaluated. Package differences (14-SOIC vs. 14-TSSOP vs. 14-LSSOP) require PCB layout modification.

Q: What is the difference between BA10339FV-E2 and BA2901FV-E2?

A: Both use 14-LSSOP packaging and support the LMV339MTX supply voltage range. BA10339FV-E2 operates to 85°C maximum; BA2901FV-E2 extends to 125°C. BA2901FV-E2 supports lower minimum supply voltage (2V vs. 3V). Input offset and bias current specifications are equivalent. Selection depends on temperature and minimum voltage requirements of the application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LMV339MTX, BA10339F-E2, BA10339FV-E2, BA2901FV-E2, and BA2901SF-E2 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. LMV339MTX/NOPB compliance status is not specified in available data.

Q: How do package differences affect substitution?

A: LMV339MTX uses 14-TSSOP (thin shrink small outline package). Substitute parts use 14-SOIC, 14-LSSOP, or 14-TSSOP variants. All maintain 0.173" width and 4.40mm body width, but pin pitch and footprint geometry differ. PCB layout and assembly equipment compatibility must be verified before substitution.

Q: What is the significance of the reduced output current in Rohm parts?

A: LMV339MTX provides 84mA typical output current at 5V. Rohm BA10339 and BA2901 series provide 16mA typical. Applications requiring direct high-current output driving must incorporate external buffering or load analysis. Low-impedance load applications may require circuit redesign.

Q: Is LMV339MTX/NOPB the preferred substitute?

A: LMV339MTX/NOPB maintains complete electrical and packaging equivalence to LMV339MTX, with Active product status ensuring availability. It is the direct replacement when procurement of the original part is not feasible. Rohm alternatives (BA10339 and BA2901 series) offer extended operating ranges and temperature performance at the cost of reduced output current and package modification.