LMV342MAX Equivalent & Substitute Parts

Part Overview

The LMV342MAX is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and operates across a 2.7V to 5.5V supply voltage range, making it suitable for low-voltage analog signal processing applications. The part is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design requirements and procurement continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	1	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	0.02	pA
Voltage - Input Offset	700	µV
Current - Supply (x2 Channels)	107	µA
Current - Output / Channel	113	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	RoHS non-compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LMV342MAX is determined by the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: CMOS
Number of Circuits: 2
Output Type: Rail-to-Rail
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply Span: 2.7V to 5.5V minimum
Operating Temperature: -40°C to 125°C minimum
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Slew Rate: 1 V/µs or greater
Gain Bandwidth Product: 1 MHz or greater
Current - Input Bias: 0.02 pA or lower
Voltage - Input Offset: 700 µV or lower
Current - Supply: 107 µA or lower per channel
Current - Output / Channel: 113 mA or greater

Substitute parts are grouped into two categories:

Category 1: Direct Equivalents (Identical Base Part with Different Packaging) Parts sharing the LMV342 base product number with identical electrical specifications but different packaging configurations or product status upgrades.

Category 2: Functional Equivalents (Different Manufacturer, Compatible Specifications) Parts from alternative manufacturers that meet or exceed all primary substitution criteria and maintain compatibility within the specified electrical and thermal operating ranges.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Span (V)	Temp Range (°C)	Package	Status
LMV342MAX	Texas Instruments	CMOS	2	1	1	0.02	0.7	107	113	2.7–5.5	-40 to 125	8-SOIC	Obsolete
LMV342MAX/NOPB	Texas Instruments	CMOS	2	1	1	0.02	0.7	107	113	2.7–5.5	-40 to 125	8-SOIC	Active
AD8542ARZ	Analog Devices Inc.	General Purpose	2	0.92	1	0.004	1	45	30	2.7–5.5	-40 to 125	8-SOIC	Active
ADA4891-2ARZ	Analog Devices Inc.	CMOS	2	210	105	0.002	2.5	4400	125	2.7–5.5	-40 to 125	8-SOIC	Active
ADA4891-2ARZ-R7	Analog Devices Inc.	CMOS	2	210	105	0.002	2.5	4400	125	2.7–5.5	-40 to 125	8-SOIC	Active
ADA4891-2ARZ-RL	Analog Devices Inc.	CMOS	2	210	105	0.002	2.5	4400	125	2.7–5.5	-40 to 125	8-SOIC	Active
APX358SG-13	Diodes Incorporated	General Purpose	2	1	1	0.01	1.7	190	90	2.5–5.5	-40 to 85	8-SOP	Active
BU7266F-E2	Rohm Semiconductor	CMOS	2	0.0024	0.004	0.001	1	0.7	4	1.8–5.5	-40 to 85	8-SOP	Active
BU7266SF-E2	Rohm Semiconductor	CMOS	2	0.0024	0.004	0.001	1	0.7	4	1.8–5.5	-40 to 105	8-SOP	Active
BU7486F-E2	Rohm Semiconductor	CMOS	2	10	10	0.001	1	6000	12	3–5.5	-40 to 105	8-SOP	Active
LMR932F-GE2	Rohm Semiconductor	General Purpose	2	0.35	1.4	0.005	1	140	90	1.8–5	-40 to 85	8-SOP	Active

Engineering Selection Recommendations

Direct Equivalent Selection:

LMV342MAX/NOPB is the recommended direct equivalent. This part maintains identical electrical specifications to the obsolete LMV342MAX while offering active product status and RoHS3 compliance. The /NOPB designation indicates lead-free, halogen-free construction. This part is available in Cut Tape and Digi-Reel packaging configurations with 2800 units in current inventory.

Functional Equivalent Selection for CMOS Amplifier Applications:

ADA4891-2ARZ, ADA4891-2ARZ-R7, and ADA4891-2ARZ-RL are CMOS amplifiers from Analog Devices Inc. that exceed the LMV342MAX specifications. These parts feature significantly higher slew rate (210 V/µs versus 1 V/µs), higher gain bandwidth product (105 MHz versus 1 MHz), and lower input bias current (2 pA versus 0.02 pA). All three variants maintain the 8-SOIC package format, 2.7V to 5.5V supply range, and -40°C to 125°C operating temperature. The variants differ only in packaging: ADA4891-2ARZ uses Tube packaging, ADA4891-2ARZ-R7 uses Cut Tape & Digi-Reel, and ADA4891-2ARZ-RL uses Tape & Reel. These parts are suitable for applications requiring higher bandwidth and faster transient response than the original LMV342MAX.

Functional Equivalent Selection for General Purpose Applications:

AD8542ARZ from Analog Devices Inc. is a general-purpose dual amplifier in 8-SOIC package with identical supply voltage range and operating temperature to the LMV342MAX. This part features lower supply current (45 µA versus 107 µA) and lower input bias current (4 pA versus 0.02 pA), making it advantageous for power-constrained applications. The slew rate (0.92 V/µs) and gain bandwidth product (1 MHz) are comparable to the original part.

Compliance Considerations:

All recommended substitute parts carry RoHS3 compliance and REACH Unaffected status. The original LMV342MAX is RoHS non-compliant. Selection of RoHS3-compliant alternatives ensures compatibility with current environmental regulations and procurement standards.

Package Compatibility:

The 8-SOIC package (0.154", 3.90mm width) is standard across LMV342MAX/NOPB and Analog Devices equivalents. Rohm Semiconductor parts (BU7266F-E2, BU7266SF-E2, BU7486F-E2, LMR932F-GE2) use 8-SOP package (0.173", 4.40mm width), which is mechanically and electrically compatible but requires PCB layout verification due to slightly different pin spacing. Diodes Incorporated APX358SG-13 also uses 8-SOP package.

Frequently Asked Questions (FAQ)

Q1: Can LMV342MAX/NOPB be used as a direct replacement for LMV342MAX?

A: Yes. LMV342MAX/NOPB is the active equivalent of the obsolete LMV342MAX. Both parts share identical electrical specifications, including slew rate (1 V/µs), gain bandwidth product (1 MHz), supply voltage range (2.7V to 5.5V), and operating temperature range (-40°C to 125°C). The primary difference is product status (Active versus Obsolete) and RoHS compliance (RoHS3 versus non-compliant). Pin-for-pin compatibility is maintained in the 8-SOIC package.

Q2: What are the key differences between CMOS and General Purpose amplifier types in this comparison?

A: CMOS amplifiers (LMV342MAX, ADA4891-2ARZ series, BU7266 series, BU7486F-E2) feature extremely low input bias current (0.02 to 1 pA range), making them suitable for high-impedance input applications and precision measurement circuits. General Purpose amplifiers (AD8542ARZ, APX358SG-13, LMR932F-GE2) typically have higher input bias current (4 to 10 nA range) but may offer other performance advantages such as lower supply current or optimized bandwidth characteristics. Selection depends on application requirements for input impedance and bias current performance.

Q3: Are the Rohm Semiconductor parts (BU7266, BU7486, LMR932) compatible with LMV342MAX in terms of package footprint?

A: Rohm parts use 8-SOP package (0.173", 4.40mm width) versus the LMV342MAX 8-SOIC package (0.154", 3.90mm width). While both are 8-pin surface mount packages with 1.27mm pin pitch, the slightly wider body dimension requires PCB layout verification. Pin assignments are compatible, but physical placement and clearance must be confirmed before substitution. These parts are suitable for new designs or redesigns where PCB layout can be adjusted.

Q4: Which substitute part offers the lowest power consumption?

A: BU7266F-E2 and BU7266SF-E2 offer the lowest supply current at 700 nA total, compared to 107 µA for the LMV342MAX. However, these parts feature significantly reduced bandwidth (4 kHz gain bandwidth product) and slew rate (0.0024 V/µs), making them suitable only for low-frequency applications such as sensor signal conditioning or precision DC amplification. Selection must match application bandwidth requirements.

Q5: What is the significance of the -R7 and -RL suffixes on ADA4891-2ARZ variants?

A: The -R7 suffix indicates Cut Tape & Digi-Reel packaging, while -RL indicates Tape & Reel packaging. Both variants contain identical die and electrical specifications. The suffix designates packaging and delivery format only. Selection between variants depends on procurement volume and assembly line requirements. The base ADA4891-2ARZ uses Tube packaging.

Q6: Can ADA4891-2ARZ series be used in applications designed for LMV342MAX without circuit modification?

A: Pin-for-pin compatibility is maintained, allowing direct socket substitution. However, the significantly higher performance specifications (210 V/µs slew rate, 105 MHz bandwidth versus 1 V/µs and 1 MHz) may introduce circuit behavior changes in applications sensitive to bandwidth or transient response. Applications with feedback networks or compensation designed for 1 MHz bandwidth may exhibit different stability margins. Circuit simulation or bench testing is recommended for critical applications.

Q7: What is the operating temperature range limitation for APX358SG-13?

A: APX358SG-13 operates from -40°C to 85°C, which is narrower than the LMV342MAX range of -40°C to 125°C. This part is not suitable for applications requiring operation above 85°C. Rohm parts BU7266F-E2 and LMR932F-GE2 share the same -40°C to 85°C limitation, while BU7266SF-E2 and BU7486F-E2 extend to 105°C. For full -40°C to 125°C range compatibility, select LMV342MAX/NOPB, AD8542ARZ, or ADA4891-2ARZ series.

Q8: What does MSL (Moisture Sensitivity Level) 1 indicate?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This is the least restrictive moisture sensitivity classification. All parts in this comparison carry MSL 1 rating, eliminating moisture management as a selection criterion.

Q9: Are there supply voltage range differences that affect substitution?

A: Most parts maintain the 2.7V to 5.5V range of the LMV342MAX. APX358SG-13 operates from 2.5V to 5.5V (lower minimum), while BU7266 series operates from 1.8V to 5.5V (lower minimum), and BU7486F-E2 requires minimum 3V. LMR932F-GE2 operates from 1.8V to 5V (lower maximum). For applications using the full 2.7V to 5.5V range, verify substitute part specifications match or exceed these limits.

Q10: What is the significance of RoHS3 compliance for new designs?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. RoHS3-compliant parts are required for products sold in the European Union and increasingly in other markets. The obsolete LMV342MAX is RoHS non-compliant, making RoHS3-compliant substitutes (LMV342MAX/NOPB, all Analog Devices and Rohm parts) necessary for regulatory compliance in new designs and procurement.

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