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LMV342MMX CMOS Amplifier Equivalent & Substitute Parts
Part Overview
The LMV342MMX is a dual-channel CMOS operational amplifier manufactured by Texas Instruments, housed in an 8-VSSOP surface mount package. This device features rail-to-rail output capability and operates across a 2.7 V to 5.5 V supply voltage range, making it suitable for low-power analog signal conditioning applications.
The LMV342MMX is classified as obsolete. Identifying functionally equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems currently utilizing this component.
Substiute Parts
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 |
| Mounting Type | Surface Mount | — |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | — |
| Supplier Device Package | 8-VSSOP | — |
| Product Status | Obsolete | — |
| RoHS Status | RoHS non-compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the LMV342MMX are grouped based on strict alignment with the following critical parameters:
Primary Substitution Criteria:
- Dual-channel configuration (2 circuits)
- Rail-to-rail output capability
- CMOS or voltage feedback amplifier topology
- 8-pin surface mount package (8-VSSOP, 8-MSOP, or 8-TSSOP)
- Supply voltage range compatibility (minimum 2.7 V, maximum 5.5 V)
- Operating temperature range (-40°C to 125°C or compatible subset)
Secondary Compatibility Factors:
- Slew rate and gain bandwidth product (functional performance characteristics)
- Input bias current and input offset voltage (signal integrity parameters)
- Supply current and output current per channel (power consumption and drive capability)
Substitutes are presented in order of direct equivalence, followed by parts with enhanced performance characteristics or alternative compliance certifications.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (µV) | Supply Current (µA) | Output Current (mA) | Temp Range (°C) | Package | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LMV342MMX | Texas Instruments | CMOS | 1 | 1 | 0.02 | 700 | 107 | 113 | -40 to 125 | 8-VSSOP | Obsolete |
| LMV342MMX/NOPB | National Semiconductor | CMOS | 1 | 1 | 0.02 | 700 | 107 | 113 | -40 to 125 | 8-VSSOP | Active |
| LMV358DMR2G | onsemi | Voltage Feedback | 1 | 1 | 1000 | 1700 | 100 | 160 | -40 to 85 | 8-MSOP | Active |
| LMV358M8G-13 | Diodes Incorporated | General Purpose | 1 | 1 | 15000 | 1700 | 190 | 90 | -40 to 125 | 8-MSOP | Active |
| MCP6422-E/MS | Microchip Technology | General Purpose | 0.05 | 0.09 | 1 | 1000 | 4.4 | 22 | -40 to 125 | 8-MSOP | Active |
| ADA4891-2ARMZ | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2500 | 4400 | 125 | -40 to 125 | 8-MSOP | Active |
| ADA4891-2ARMZ-R7 | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2500 | 4400 | 125 | -40 to 125 | 8-MSOP | Active |
| ADA4891-2ARMZ-RL | Analog Devices Inc. | CMOS | 210 | 105 | 2 | 2500 | 4400 | 125 | -40 to 125 | 8-MSOP | Active |
| BU7266FVM-TR | Rohm Semiconductor | CMOS | 0.0024 | 0.004 | 1 | 1000 | 700 | 4 | -40 to 85 | 8-MSOP | Active |
| BU7266SFVM-TR | Rohm Semiconductor | CMOS | 0.0024 | 0.004 | 1 | 1000 | 700 | 4 | -40 to 105 | 8-MSOP | Active |
| BU7486FVM-TR | Rohm Semiconductor | CMOS | 10 | 10 | 1 | 1000 | 6000 | 12 | -40 to 105 | 8-MSOP | Active |
Engineering Selection Recommendations
Direct Equivalent (Highest Compatibility):
LMV342MMX/NOPB is the direct equivalent substitute. This part maintains identical electrical specifications and package configuration as the original LMV342MMX. The primary distinction is product status: LMV342MMX/NOPB is active and available in production quantities (4600 pcs in stock), whereas the original is obsolete. This part is manufactured by National Semiconductor and carries the same RoHS non-compliant status as the original.
Active Substitutes with Matching Core Parameters:
LMV358DMR2G (onsemi) and LMV358M8G-13 (Diodes Incorporated) both provide dual-channel, rail-to-rail CMOS amplification in 8-MSOP packages with 1 V/µs slew rate and 1 MHz gain bandwidth product. Both are active products with RoHS3 compliance. LMV358M8G-13 extends the operating temperature range to -40°C to 125°C, matching the original specification. LMV358DMR2G operates to 85°C.
Performance-Enhanced Substitutes:
ADA4891-2ARMZ, ADA4891-2ARMZ-R7, and ADA4891-2ARMZ-RL (Analog Devices Inc.) offer significantly enhanced performance with 210 V/µs slew rate and 105 MHz gain bandwidth product. These parts are available in multiple packaging formats (Tube, Cut Tape & Digi-Reel, and Tape & Reel) and are RoHS3 compliant. All three variants maintain the -40°C to 125°C operating temperature range and 8-MSOP package compatibility.
Low-Power Alternatives:
MCP6422-E/MS (Microchip Technology) provides ultra-low supply current (4.4 µA) suitable for battery-powered applications. This part operates across -40°C to 125°C and is RoHS3 compliant. Trade-offs include reduced slew rate (0.05 V/µs) and lower gain bandwidth product (90 kHz).
BU7266FVM-TR and BU7266SFVM-TR (Rohm Semiconductor) deliver extremely low quiescent current (700 nA) for ultra-low-power designs. BU7266SFVM-TR extends the operating temperature to 105°C. Both are RoHS3 compliant. These parts are suitable only for applications tolerating minimal slew rate (0.0024 V/µs) and gain bandwidth product (4 kHz).
BU7486FVM-TR (Rohm Semiconductor) provides moderate performance enhancement (10 V/µs slew rate, 10 MHz gain bandwidth product) with reduced supply current (6 mA) compared to the original. Operating temperature extends to 105°C, and the part is RoHS3 compliant.
Compliance Considerations:
The original LMV342MMX is RoHS non-compliant. All active substitutes listed (LMV342MMX/NOPB excepted) are RoHS3 compliant, supporting modern procurement and environmental requirements. All parts carry REACH Unaffected status and EAR99 export classification.
Frequently Asked Questions (FAQ)
Q: Can LMV342MMX/NOPB be used as a direct replacement for LMV342MMX?
A: Yes. LMV342MMX/NOPB is electrically and mechanically identical to LMV342MMX. Both parts feature identical slew rate (1 V/µs), gain bandwidth product (1 MHz), input bias current (0.02 pA), input offset voltage (700 µV), supply current (107 µA per channel), output current (113 mA per channel), and operating temperature range (-40°C to 125°C). The 8-VSSOP package is identical. The primary difference is product status: LMV342MMX/NOPB is active and available in production quantities.
Q: What are the key differences between LMV358DMR2G and the original LMV342MMX?
A: LMV358DMR2G maintains the same slew rate (1 V/µs) and gain bandwidth product (1 MHz) as LMV342MMX. However, input bias current is higher (1 nA vs. 0.02 pA), input offset voltage is higher (1.7 mV vs. 700 µV), and supply current is slightly lower (100 µA vs. 107 µA per channel). Output current per channel is higher (160 mA vs. 113 mA). The operating temperature range is -40°C to 85°C, which does not extend to 125°C. The package is 8-MSOP instead of 8-VSSOP. LMV358DMR2G is RoHS3 compliant and active.
Q: Are the ADA4891-2ARMZ variants suitable for direct replacement?
A: ADA4891-2ARMZ, ADA4891-2ARMZ-R7, and ADA4891-2ARMZ-RL are not direct replacements but are performance-enhanced alternatives. These parts offer 210 V/µs slew rate and 105 MHz gain bandwidth product, compared to 1 V/µs and 1 MHz for the original. Input bias current is higher (2 pA vs. 0.02 pA), and input offset voltage is higher (2.5 mV vs. 700 µV). Supply current is significantly higher (4.4 mA vs. 107 µA per channel). These parts are suitable for applications requiring higher bandwidth and slew rate performance. All three variants are RoHS3 compliant and active. The differences between variants are packaging format only: Tube, Cut Tape & Digi-Reel, and Tape & Reel, respectively.
Q: What is the difference between 8-VSSOP and 8-MSOP packages?
A: Both 8-VSSOP and 8-MSOP are 8-pin surface mount packages with similar footprints. The 8-VSSOP package has a body width of 3.00 mm (0.118"), while 8-MSOP has a body width of 2.80 mm to 3.00 mm depending on manufacturer. Pin pitch and lead configuration are compatible for most applications. Verify PCB layout compatibility with specific package drawings before substitution.
Q: Can MCP6422-E/MS replace LMV342MMX in all applications?
A: MCP6422-E/MS is not a direct replacement. While both are dual-channel, rail-to-rail amplifiers in 8-MSOP packages with -40°C to 125°C operating range, MCP6422-E/MS has significantly reduced performance: slew rate is 0.05 V/µs (vs. 1 V/µs), and gain bandwidth product is 90 kHz (vs. 1 MHz). Supply current is much lower (4.4 µA vs. 107 µA per channel), making it suitable for ultra-low-power applications. Output current per channel is lower (22 mA vs. 113 mA). MCP6422-E/MS is suitable only for applications tolerating reduced bandwidth and slew rate.
Q: What are the advantages of BU7266FVM-TR and BU7266SFVM-TR?
A: Both parts offer extremely low quiescent current (700 nA), making them ideal for battery-powered and energy-harvesting applications. BU7266SFVM-TR extends the operating temperature range to 105°C compared to 85°C for BU7266FVM-TR. However, both parts have severely limited performance: slew rate is 0.0024 V/µs and gain bandwidth product is 4 kHz. These parts are suitable only for DC or very low-frequency signal conditioning applications. Both are RoHS3 compliant and active.
Q: Which substitute offers the best performance enhancement?
A: ADA4891-2ARMZ (and its packaging variants ADA4891-2ARMZ-R7 and ADA4891-2ARMZ-RL) provide the most significant performance enhancement with 210 V/µs slew rate and 105 MHz gain bandwidth product, compared to 1 V/µs and 1 MHz for the original. These parts are suitable for high-speed signal conditioning, transimpedance amplifier applications, and other bandwidth-demanding circuits. All three variants are RoHS3 compliant and active.
Q: What is the difference between the three ADA4891-2ARMZ variants?
A: ADA4891-2ARMZ, ADA4891-2ARMZ-R7, and ADA4891-2ARMZ-RL are electrically identical. The differences are packaging and delivery format only: ADA4891-2ARMZ is supplied in Tube packaging; ADA4891-2ARMZ-R7 is supplied in Cut Tape & Digi-Reel format; ADA4891-2ARMZ-RL is supplied in Tape & Reel format. Select based on assembly process requirements and inventory management preferences.
Q: Is RoHS compliance important for LMV342MMX substitution?
A: The original LMV342MMX is RoHS non-compliant. Most active substitutes (LMV358DMR2G, LMV358M8G-13, MCP6422-E/MS, ADA4891-2ARMZ variants, BU7266FVM-TR, BU7266SFVM-TR, BU7486FVM-TR) are RoHS3 compliant. If procurement policies or customer requirements mandate RoHS compliance, select from the active, RoHS3-compliant alternatives. LMV342MMX/NOPB maintains the original RoHS non-compliant status.
Q: Can BU7486FVM-TR be used as a middle-ground substitute?
A: Yes. BU7486FVM-TR offers moderate performance enhancement (10 V/µs slew rate, 10 MHz gain bandwidth product) compared to the original (1 V/µs, 1 MHz), while maintaining lower supply current (6 mA vs. 107 µA per channel). Operating temperature extends to 105°C. This part is suitable for applications requiring improved bandwidth without the power consumption of high-performance alternatives like ADA4891-2ARMZ. BU7486FVM-TR is RoHS3 compliant and active.
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