LMV761MF Equivalent & Substitute Parts

Part Overview

The LMV761MF is a general-purpose comparator IC manufactured by Texas Instruments in SOT-23-6 surface mount packaging. This device features push-pull output configuration with single/dual supply voltage range of 2.7V to 5V, making it suitable for low-voltage signal comparison applications. The main part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for ongoing production and maintenance requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	LMV761MF
Manufacturer	Texas Instruments
Category	Linear
Type	General Purpose Comparator
Output Type	Push-Pull
Voltage - Supply, Single/Dual (±)	2.7V ~ 5V
Voltage - Input Offset (Max)	0.2mV @ 5V
Current - Input Bias (Max)	50pA @ 5V
Current - Quiescent (Max)	700µA
CMRR, PSRR (Typ)	100dB CMRR, 110dB PSRR
Propagation Delay (Max)	225ns
Operating Temperature	-40°C ~ 125°C
Package / Case	SOT-23-6
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution eligibility for the LMV761MF is determined by the following critical parameters:

Primary Substitution Criteria:

Output Type: Push-Pull configuration required
Voltage - Supply Range: Must encompass or match 2.7V ~ 5V
Package / Case: SOT-23-6 preferred for direct PCB compatibility; alternative packages acceptable if mechanical constraints permit
Operating Temperature Range: Must support -40°C ~ 125°C minimum
RoHS Status: ROHS3 Compliant required
Mounting Type: Surface Mount required

Secondary Compatibility Factors:

Voltage - Input Offset: Lower values preferred; maximum 0.2mV @ 5V is baseline
Current - Input Bias: Lower values preferred; maximum 50pA @ 5V is baseline
Propagation Delay: Lower values preferred; maximum 225ns is baseline
CMRR/PSRR: Minimum 100dB CMRR and 110dB PSRR preferred

Substitute parts are grouped into three categories: Parametric Equivalents (identical electrical specifications and same base product family), Manufacturer Recommended alternatives (functionally compatible with acceptable parameter variations), and Cross-manufacturer options (different manufacturers with compatible performance profiles).

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Supply (V)	Input Offset Max (mV)	Input Bias Max (pA)	Quiescent Current Max (µA)	CMRR/PSRR (dB)	Prop. Delay Max (ns)	Package	Temp Range (°C)
LMV761MF	Texas Instruments	Last Time Buy	2.7 ~ 5	0.2 @ 5V	50 @ 5V	700	100/110	225	SOT-23-6	-40 ~ 125
LMV761MF/NOPB	Texas Instruments	Active	2.7 ~ 5	0.2 @ 5V	50 @ 5V	700	100/110	225	SOT-23-6	-40 ~ 125
LMV761MFX	Texas Instruments	Last Time Buy	2.7 ~ 5	0.2 @ 5V	50 @ 5V	700	100/110	225	SOT-23-6	-40 ~ 125
LMV761MFX/NOPB	Texas Instruments	Active	2.7 ~ 5	0.2 @ 5V	50 @ 5V	700	100/110	225	SOT-23-6	-40 ~ 125
BU7231G-TR	Rohm Semiconductor	Active	1.8 ~ 5.5, ±0.9 ~ 2.75	11 @ 3V	1 @ 3V	0.015	80/80	1700	SC-74A, SOT-753	-40 ~ 85
BU7231SG-TR	ROHM Semiconductor	Active	1.8 ~ 5.5, ±0.9 ~ 2.75	11 @ 3V	1 @ 3V	0.015	80/80	1700	SC-74A, SOT-753	-40 ~ 105
BU5255SHFV-TR	Rohm Semiconductor	Active	1.8 ~ 5.5, ±0.9 ~ 2.75	6 @ 3V	1 @ 3V (Typ)	15	80/80	1600 (Typ)	SOT-665	-40 ~ 105
ADCMP356YKSZ-REEL7	Analog Devices Inc.	Active	2.25 ~ 5.5	Not specified	170 @ 5.5V	15	Not specified	Not specified	SC-82A, SOT-343	-40 ~ 125
MAX40005ANS02+T	Analog Devices Inc./Maxim Integrated	Active	1.7 ~ 5.5	10 @ 3.3V	0.03	1.1	70 PSRR (Min)	9000 (Typ)	4-XFBGA, WLBGA	-40 ~ 125

Engineering Selection Recommendations

Tier 1 - Direct Replacements (Parametric Equivalents):

LMV761MF/NOPB, LMV761MFX, and LMV761MFX/NOPB are parametric equivalents of the LMV761MF with identical electrical specifications and SOT-23-6 packaging. LMV761MF/NOPB and LMV761MFX/NOPB carry Active product status, ensuring continued availability and support. These parts are recommended as primary substitutes for direct PCB replacement without design modification.

Tier 2 - Manufacturer Recommended Alternatives:

BU7231G-TR, BU7231SG-TR, and BU5255SHFV-TR are Rohm Semiconductor general-purpose comparators with Active product status. These devices support the required 2.7V ~ 5V supply range through their 1.8V ~ 5.5V capability and maintain push-pull output configuration. Package differences (5-SSOP and 5-HVSOF) require PCB layout modification. BU7231SG-TR extends operating temperature to 105°C, matching the LMV761MF upper limit. These alternatives are suitable when package constraints permit redesign.

ADCMP356YKSZ-REEL7 (Analog Devices Inc.) and MAX40005ANS02+T (Analog Devices Inc./Maxim Integrated) are Active status comparators with extended supply voltage ranges (2.25V ~ 5.5V and 1.7V ~ 5.5V respectively). Both maintain -40°C ~ 125°C operating temperature compatibility. Package differences (SC-82A/SOT-343 and 4-XFBGA/WLBGA) require significant PCB redesign. These options are suitable for new designs or major revisions where package flexibility exists.

Compliance and Certification:

All substitute parts listed maintain ROHS3 compliance, MSL Level 1 (Unlimited), REACH Unaffected status, and EAR99 ECCN classification, matching the LMV761MF regulatory profile. Selection should prioritize Active status parts (LMV761MF/NOPB, LMV761MFX/NOPB, BU7231G-TR, BU7231SG-TR, BU5255SHFV-TR, ADCMP356YKSZ-REEL7, MAX40005ANS02+T) to ensure long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can LMV761MF/NOPB be used as a direct replacement for LMV761MF?

A: Yes. LMV761MF/NOPB is a parametric equivalent with identical electrical specifications, SOT-23-6 packaging, and -40°C ~ 125°C operating temperature range. The /NOPB suffix indicates lead-free plating and RoHS compliance. No PCB modification is required. LMV761MF/NOPB carries Active product status, ensuring continued availability.

Q: What is the difference between LMV761MFX and LMV761MFX/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications and SOT-23-6 packaging. The /NOPB suffix indicates lead-free plating and RoHS compliance. LMV761MFX/NOPB carries Active product status, while LMV761MFX is Last Time Buy. For new designs and long-term supply, LMV761MFX/NOPB is recommended.

Q: Can Rohm Semiconductor BU7231G-TR replace LMV761MF without PCB modification?

A: No. BU7231G-TR uses 5-SSOP packaging (SC-74A, SOT-753) instead of SOT-23-6, requiring PCB layout redesign. However, electrical specifications are compatible: push-pull output, 1.8V ~ 5.5V supply range (encompasses 2.7V ~ 5V), -40°C ~ 85°C operating temperature, and ROHS3 compliance. Substitution is feasible with design modification.

Q: What are the key differences between BU7231G-TR and BU7231SG-TR?

A: Both parts are identical except for operating temperature range. BU7231G-TR operates -40°C ~ 85°C, while BU7231SG-TR operates -40°C ~ 105°C. For applications requiring the full -40°C ~ 125°C range of the LMV761MF, BU7231SG-TR is the better choice. Both use 5-SSOP packaging and require PCB modification.

Q: Is ADCMP356YKSZ-REEL7 suitable for LMV761MF replacement?

A: ADCMP356YKSZ-REEL7 is a comparator with integrated voltage reference, differing functionally from the general-purpose LMV761MF. Supply voltage range (2.25V ~ 5.5V) and operating temperature (-40°C ~ 125°C) are compatible. However, SC-82A/SOT-343 packaging requires significant PCB redesign. This part is suitable only for new designs where the integrated voltage reference provides system benefit.

Q: What is the primary advantage of MAX40005ANS02+T over LMV761MF?

A: MAX40005ANS02+T offers ultra-low quiescent current (1.1µA typical) compared to LMV761MF (700µA maximum), making it suitable for battery-powered or ultra-low-power applications. It includes integrated voltage reference and operates across 1.7V ~ 5.5V supply range. The 4-WLP (0.73x0.73) package is significantly smaller than SOT-23-6, requiring substantial PCB redesign. This part is recommended for new low-power designs only.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (LMV761MF/NOPB, LMV761MFX, LMV761MFX/NOPB, BU7231G-TR, BU7231SG-TR, BU5255SHFV-TR, ADCMP356YKSZ-REEL7, MAX40005ANS02+T) maintain ROHS3 compliance, MSL Level 1, and REACH Unaffected status, matching the LMV761MF regulatory profile.

Q: Which substitute part has the best inventory availability?

A: BU7231G-TR (Rohm Semiconductor) has the highest inventory at 54,300 pieces. LMV761MFX/NOPB (Texas Instruments) has 16,600 pieces. For immediate supply assurance, BU7231G-TR is the most readily available option, though PCB modification is required.

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