LMV7235M5 Equivalent & Substitute Parts

Part Overview

The LMV7235M5 is a general-purpose comparator IC manufactured by Texas Instruments, featuring open-drain, rail-to-rail output in a SOT-23-5 surface mount package. This device operates across a 2.7V to 5.5V supply voltage range and is designed for precision comparison applications requiring low input offset voltage and controlled propagation delay.

The LMV7235M5 carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identification of equivalent and substitute parts to ensure design continuity and supply chain reliability for ongoing production and maintenance applications.

Key Parameters

Parameter	Value	Unit
Supply Voltage Range	2.7 to 5.5	V
Input Offset Voltage (Max)	6	mV @ 5V
Input Bias Current (Max)	0.4	µA @ 5V
Quiescent Current (Max)	95	µA
CMRR / PSRR (Typ)	67dB / 85dB	dB
Propagation Delay (Max)	62	ns
Output Type	Open-Drain, Rail-to-Rail	—
Operating Temperature	-40 to 85	°C
Package / Case	SC-74A, SOT-753	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the LMV7235M5 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Supply voltage range must encompass or match 2.7V to 5.5V
Input offset voltage must not exceed 6mV at nominal operating voltage
Output type must be open-drain or functionally equivalent
Propagation delay must not significantly exceed 62ns for timing-critical applications
Operating temperature range must cover -40°C to 85°C minimum

Mechanical Compatibility Requirements:

Package must be SOT-23-5 (SC-74A, SOT-753) for direct PCB footprint compatibility
Surface mount configuration required
Pin count and pinout must match the original device

Compliance Requirements:

RoHS3 compliance mandatory
MSL rating of 1 (Unlimited) preferred for manufacturing flexibility

Substitute parts are grouped into three categories:

Direct Equivalents (Texas Instruments LMV7235 Series): Identical electrical and mechanical specifications with packaging or product status variations
Parametric Equivalents (Alternate Manufacturers, SOT-23-5 Package): Parts meeting electrical specifications within SOT-23-5 form factor but with different output types or performance characteristics
Functional Alternatives (Different Package): Parts meeting electrical specifications but in alternative packages (SC-70-5, 8-SOIC), requiring PCB redesign

Parameter Comparison

Part Number	Manufacturer	Supply Voltage (V)	Input Offset (mV)	Input Bias (µA)	Quiescent Current (µA)	Propagation Delay (ns/µs)	Output Type	Package	Product Status
LMV7235M5	Texas Instruments	2.7–5.5	6 @ 5V	0.4 @ 5V	95	62ns	Open-Drain, Rail-to-Rail	SOT-23-5	Last Time Buy
LMV7235M5/NOPB	Texas Instruments	2.7–5.5	6 @ 5V	0.4 @ 5V	95	62ns	Open-Drain, Rail-to-Rail	SOT-23-5	Active
LMV7235M5X	Texas Instruments	2.7–5.5	6 @ 5V	0.4 @ 5V	95	62ns	Open-Drain, Rail-to-Rail	SOT-23-5	Last Time Buy
LMV7235M5X/NOPB	Texas Instruments	2.7–5.5	6 @ 5V	0.4 @ 5V	95	62ns	Open-Drain, Rail-to-Rail	SOT-23-5	Active
MAX9140AAUK+T	Analog Devices Inc./Maxim Integrated	2.7–5.5	6 @ 5V	0.35 @ 5V	400	40ns	CMOS, Push-Pull, TTL	SOT-23-5	Active
MCP6541RT-I/OT	Microchip Technology	1.6–5.5	7 @ 5.5V	1pA @ 5.5V	1	8µs	CMOS, Push-Pull, Rail-to-Rail, TTL	SOT-23-5	Active
MCP6541T-E/OT	Microchip Technology	1.6–5.5	7 @ 5.5V	1pA @ 5.5V	1	8µs	CMOS, Push-Pull, Rail-to-Rail, TTL	SOT-23-5	Active
MCP6541T-I/OT	Microchip Technology	1.6–5.5	7 @ 5.5V	1pA @ 5.5V	1	8µs	CMOS, Push-Pull, Rail-to-Rail, TTL	SOT-23-5	Active
ADCMP370AKSZ-REEL7	Analog Devices Inc.	2.25–5.5	9 @ 5.5V	0.05 @ 5.5V	7	5µs	Open-Drain	SC-70-5	Active
ADCMP394ARZ	Analog Devices Inc.	2.3–5.5	5	0.03	47.9	4.2µs	Open-Drain	8-SOIC	Active
ADCMP394ARZ-RL7	Analog Devices Inc.	2.3–5.5	5	0.03	47.9	4.2µs	Open-Drain	8-SOIC	Active

Engineering Selection Recommendations

Tier 1 – Direct Replacement (No Design Changes Required):

LMV7235M5/NOPB and LMV7235M5X/NOPB are the primary substitutes. Both maintain identical electrical specifications and SOT-23-5 packaging. LMV7235M5/NOPB carries Active product status with 19,357 units in stock, providing immediate supply availability. LMV7235M5X/NOPB also maintains Active status with 24,271 units available. These parts are functionally interchangeable with the original LMV7235M5 and require no circuit modifications.

Tier 2 – SOT-23-5 Package Alternatives (No PCB Redesign Required):

MAX9140AAUK+T (Analog Devices Inc./Maxim Integrated) and MCP6541 series (Microchip Technology) maintain the SOT-23-5 package form factor. MAX9140AAUK+T offers faster propagation delay (40ns vs. 62ns) and lower input bias current (0.35µA vs. 0.4µA) but features push-pull output instead of open-drain. This output type difference requires circuit evaluation for compatibility. MCP6541 variants (MCP6541RT-I/OT, MCP6541T-E/OT, MCP6541T-I/OT) provide extended supply voltage range (1.6V to 5.5V) and significantly lower quiescent current (1µA vs. 95µA), beneficial for battery-powered applications. However, propagation delay is substantially longer (8µs vs. 62ns), making these unsuitable for high-speed comparison requirements. All MCP6541 variants carry Active product status.

Tier 3 – Alternative Package Solutions (PCB Redesign Required):

ADCMP370AKSZ-REEL7 (Analog Devices Inc.) in SC-70-5 package and ADCMP394ARZ series in 8-SOIC package provide functional comparison capability but require PCB layout modifications. ADCMP394ARZ offers superior input offset voltage (5mV vs. 6mV) and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). Both alternatives carry Active product status and RoHS3 compliance.

Compliance and Supply Considerations:

All recommended substitutes maintain RoHS3 compliance and MSL rating of 1 (Unlimited). Product status verification confirms that Tier 1 and Tier 2 alternatives are in Active production with substantial inventory levels, ensuring long-term supply continuity. Selection should prioritize Active status parts to avoid future obsolescence.

Frequently Asked Questions (FAQ)

Q: Can LMV7235M5/NOPB directly replace LMV7235M5 without circuit modifications?

A: Yes. LMV7235M5/NOPB is electrically and mechanically identical to LMV7235M5. The "/NOPB" suffix indicates lead-free, RoHS-compliant packaging. No design changes are required. This part is currently in Active production status with higher inventory availability.

Q: What is the difference between LMV7235M5X and LMV7235M5?

A: LMV7235M5X and LMV7235M5 are parametrically equivalent with identical electrical specifications. The "X" designation indicates a different manufacturing process or qualification level. Both are suitable substitutes. LMV7235M5X/NOPB is recommended due to Active product status and higher stock levels (24,271 units).

Q: Why do MAX9140AAUK+T and MCP6541 series have different output types?

A: The LMV7235M5 features open-drain output, which requires an external pull-up resistor and allows wire-OR logic configurations. MAX9140AAUK+T provides push-pull (CMOS) output, which actively drives both high and low states. MCP6541 series also provides push-pull output. Output type selection depends on circuit requirements. Open-drain output is necessary for multi-comparator OR logic; push-pull output is suitable for direct logic gate interfacing.

Q: Can MCP6541 variants replace LMV7235M5 in timing-critical applications?

A: No. MCP6541 propagation delay is 8µs, compared to 62ns for LMV7235M5. This 128-fold increase makes MCP6541 unsuitable for high-speed comparison applications. MCP6541 is appropriate only for low-frequency threshold detection where propagation delay is not critical.

Q: What are the supply voltage compatibility considerations?

A: LMV7235M5 operates from 2.7V to 5.5V. MCP6541 series extends this range to 1.6V to 5.5V, enabling operation in lower-voltage applications. ADCMP370AKSZ-REEL7 operates from 2.25V to 5.5V. If your application requires operation below 2.7V, MCP6541 is the only SOT-23-5 alternative. Otherwise, voltage range is not a limiting factor.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitutes carry RoHS3 compliance certification. MSL rating is 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions during storage and handling.

Q: What packaging options are available for LMV7235M5 substitutes?

A: Direct equivalents (LMV7235M5/NOPB, LMV7235M5X/NOPB) and Tier 2 alternatives (MAX9140AAUK+T, MCP6541 series) are available in SOT-23-5 package, requiring no PCB changes. Tier 3 alternatives are available in SC-70-5 (ADCMP370AKSZ-REEL7) and 8-SOIC (ADCMP394ARZ series), requiring PCB redesign.

Q: Which substitute offers the best inventory availability?

A: MCP6541T-I/OT provides the highest inventory level at 55,100 units in stock. LMV7235M5X/NOPB offers 24,271 units, and LMV7235M5/NOPB offers 19,357 units. For immediate supply assurance, MCP6541T-I/OT is recommended if propagation delay requirements permit its use.

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