LMV339MX Equivalent & Substitute Parts

Part Overview

The LMV339MX is a quad general-purpose comparator manufactured by Texas Instruments, housed in a 14-SOIC surface-mount package. This device features CMOS, open-collector, and TTL output configurations suitable for analog signal comparison applications across a 2.7V to 5.5V supply range. The LMV339MX is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	LMV339MX
Manufacturer	Texas Instruments
Category	Linear
Type	General Purpose Comparator
Number of Elements	4
Output Type	CMOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±)	2.7V ~ 5.5V
Voltage - Input Offset (Max)	7mV @ 5V
Current - Input Bias (Max)	0.25µA @ 5V
Current - Output (Typ)	84mA @ 5V
Current - Quiescent (Max)	300µA
Propagation Delay (Max)	600ns
Operating Temperature	-40°C ~ 85°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the LMV339MX is determined by the following critical parameters:

Number of Elements: Must be 4 (quad comparator configuration)
Output Type: Must support Open-Collector output for direct compatibility
Package Type: 14-SOIC or equivalent 14-pin surface-mount packages (14-SOP, 14-SSOP acceptable with PCB layout verification)
Voltage Supply Range: Must encompass or exceed 2.7V ~ 5.5V
Input Offset Voltage: Maximum 7mV @ 5V or lower
Input Bias Current: Maximum 0.25µA @ 5V or lower
Operating Temperature: Must support -40°C ~ 85°C minimum
Mounting Type: Surface mount only

Substitute parts are grouped into two categories: parametric equivalents (matching all electrical specifications within tolerance) and manufacturer-recommended alternatives (meeting functional requirements with extended supply voltage ranges or improved performance characteristics).

Parameter Comparison

Parameter	LMV339MX	LMV339MX/NOPB	AS339AMTR-E1	AS339MTR-E1	BA10339F-E2	BA2901FV-E2	LM339DT
Manufacturer	Texas Instruments	National Semiconductor	Diodes Incorporated	Diodes Incorporated	Rohm Semiconductor	Rohm Semiconductor	STMicroelectronics
Number of Elements	4	4	4	4	4	4	4
Output Type	CMOS, Open-Collector, TTL	CMOS, Open-Collector, TTL	Open-Collector	Open-Collector	Open-Collector	Open-Collector	CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±)	2.7V ~ 5.5V	2.7V ~ 5.5V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	3V ~ 36V, ±1.5V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 32V, ±1V ~ 16V
Voltage - Input Offset (Max)	7mV @ 5V	7mV @ 5V	3mV @ 5V	5mV @ 5V	5mV @ 5V	7mV @ 5V	5mV @ 30V
Current - Input Bias (Max)	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V
Current - Output (Typ)	84mA @ 5V	84mA @ 5V	16mA @ 5V	16mA @ 5V	16mA @ 5V	16mA @ 5V	16mA @ 5V
Current - Quiescent (Max)	300µA	300µA	2mA	2mA	2mA	2mA	2.5mA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	0°C ~ 70°C
Package / Case	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.173", 4.40mm)	14-LSSOP (0.173", 4.40mm)	14-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

LMV339MX/NOPB (National Semiconductor) is the direct parametric equivalent, maintaining identical electrical specifications and 14-SOIC packaging. This part transitions from obsolete to active product status, ensuring long-term availability. Selection is appropriate for applications requiring exact specification matching with no design modifications.

AS339AMTR-E1 and AS339MTR-E1 (Diodes Incorporated) offer extended supply voltage ranges (2V ~ 36V) with improved input offset voltage performance (3mV to 5mV). Both parts maintain 14-SOIC packaging and active product status with ROHS3 compliance. AS339AMTR-E1 is supplied in Tape & Reel packaging; AS339MTR-E1 is supplied in Cut Tape & Digi-Reel format. These parts are suitable for applications requiring wider supply voltage tolerance.

BA10339F-E2 (Rohm Semiconductor) provides extended supply voltage range (3V ~ 36V) in a 14-SOP package (0.173" width versus 0.154" for standard SOIC). This part is ROHS3 compliant with active product status. PCB layout verification is required due to package width variation.

BA2901FV-E2 (Rohm Semiconductor) operates across 2V ~ 36V supply range in a 14-LSSOP package with extended operating temperature to 125°C. This part is ROHS3 compliant with active product status. Package footprint differs from standard SOIC; PCB redesign may be necessary.

LM339DT (STMicroelectronics) supports 2V ~ 32V supply range with active product status and ROHS3 compliance. Operating temperature range is limited to 0°C ~ 70°C, which does not meet the original -40°C ~ 85°C specification. This part is suitable only for applications within the 0°C ~ 70°C temperature window.

Frequently Asked Questions (FAQ)

Q: Can AS339AMTR-E1 or AS339MTR-E1 be used as direct drop-in replacements for LMV339MX?

A: Both parts maintain the 14-SOIC package footprint and quad comparator configuration. However, output current is reduced from 84mA to 16mA, and quiescent current is reduced from 300µA to 2mA. Applications requiring the original 84mA output current must be redesigned or use LMV339MX/NOPB instead.

Q: What is the difference between AS339AMTR-E1 and AS339MTR-E1?

A: Both parts are functionally identical with identical electrical specifications. AS339AMTR-E1 is supplied in Tape & Reel (TR) packaging; AS339MTR-E1 is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on procurement and assembly requirements. AS339MTR-E1 has MSL rating of 3 (168 Hours) versus MSL 1 (Unlimited) for AS339AMTR-E1.

Q: Can BA10339F-E2 be used without PCB modifications?

A: BA10339F-E2 uses a 14-SOP package with 0.173" width compared to the standard 14-SOIC 0.154" width. Footprint compatibility must be verified against the PCB design. Pin pitch and lead configuration remain compatible, but package width variation may require layout adjustment.

Q: Why does LM339DT have a reduced operating temperature range?

A: LM339DT is specified for 0°C ~ 70°C operation, which does not meet the original -40°C ~ 85°C requirement. This part is suitable only for applications operating within the 0°C ~ 70°C window. For full temperature range compatibility, use LMV339MX/NOPB, AS339AMTR-E1, AS339MTR-E1, BA10339F-E2, or BA2901FV-E2.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant. The original LMV339MX is RoHS non-compliant. Compliance with RoHS3 requirements is a key advantage of transitioning to active substitute parts.

Q: What is the impact of reduced output current in substitute parts?

A: The original LMV339MX provides 84mA typical output current. Most substitute parts (AS339AMTR-E1, AS339MTR-E1, BA10339F-E2, BA2901FV-E2, LM339DT) provide 16mA typical output current. Applications driving heavy loads or low-impedance circuits must be redesigned or use LMV339MX/NOPB to maintain the original 84mA capability.

Q: Can BA2901FV-E2 be used in applications requiring -40°C operation?

A: Yes. BA2901FV-E2 supports -40°C ~ 125°C operating temperature, exceeding the original -40°C ~ 85°C specification. This part is suitable for extended temperature applications and provides the widest operating temperature range among all listed substitutes.

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