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LMV324MTX Equivalent & Substitute Parts
Part Overview
The LMV324MTX is a general-purpose operational amplifier featuring four independent circuits in a 14-TSSOP surface-mount package. Manufactured by Texas Instruments, this device provides rail-to-rail output capability with a supply voltage range of 2.7 V to 5.5 V and operates across the industrial temperature range of -40°C to 125°C.
The LMV324MTX carries a "Not For New Designs" product status, indicating that Texas Instruments has discontinued active development for this part number. This status necessitates identification of equivalent and substitute components for ongoing production requirements, maintenance applications, and new design implementations. Equivalent parts with active product status and improved compliance certifications are available from multiple manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 1 | V/µs |
| Gain Bandwidth Product | 1 | MHz |
| Current - Input Bias | 15 | nA |
| Voltage - Input Offset | 1.7 | mV |
| Current - Supply (x4 Channels) | 410 | µA |
| Current - Output / Channel | 160 | mA |
| Voltage - Supply Span (Min) | 2.7 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
Substitute Part Grouping Explanation
Substitution of the LMV324MTX is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Four independent operational amplifier circuits
- Rail-to-rail output configuration
- 14-TSSOP surface-mount package (0.173" width, 4.40mm)
- Supply voltage range encompassing 2.7 V to 5.5 V minimum
- Operating temperature range of -40°C to 125°C or broader
Performance Parameters Affecting Substitution:
- Slew rate (1 V/µs baseline)
- Gain bandwidth product (1 MHz baseline)
- Input bias current (15 nA baseline)
- Input offset voltage (1.7 mV baseline)
- Supply current per channel (410 µA baseline)
- Output current per channel (160 mA baseline)
Substitute parts are grouped into two categories:
Category 1: Direct Equivalents (General Purpose Amplifiers) Parts maintaining identical or closely matched electrical performance specifications with general-purpose amplifier topology. These include LMV324MTX/NOPB, APX324TSG-13, BD12734FVJ-E2, and LMR934FVJ-E2.
Category 2: Enhanced Performance Substitutes (CMOS Amplifiers) Parts offering superior electrical performance characteristics, particularly in slew rate, gain bandwidth product, and input bias current, while maintaining package compatibility and supply voltage requirements. These include ADA4891-4ARUZ variants, BU7487FV-E2, BU7487SFV-E2, and LMR344FVJ-E2.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Temp Range (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LMV324MTX | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 410 | 160 | -40 to 125 | Not For New Designs | Non-compliant |
| LMV324MTX/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 410 | 160 | -40 to 125 | Active | ROHS3 Compliant |
| ADA4891-4ARUZ | Analog Devices Inc. | CMOS | 210 | 105 | 0.002 | 2.5 | 4400 | 125 | -40 to 125 | Active | ROHS3 Compliant |
| ADA4891-4ARUZ-R7 | Analog Devices Inc. | CMOS | 210 | 105 | 0.002 | 2.5 | 4400 | 125 | -40 to 125 | Active | ROHS3 Compliant |
| ADA4891-4ARUZ-RL | Analog Devices Inc. | CMOS | 210 | 105 | 0.002 | 2.5 | 4400 | 125 | -40 to 125 | Active | ROHS3 Compliant |
| APX324TSG-13 | Diodes Incorporated | General Purpose | 1 | 1 | 10 | 1.7 | 340 | 90 | -40 to 85 | Active | ROHS3 Compliant |
| BD12734FVJ-E2 | Rohm Semiconductor | General Purpose | 0.4 | 1 | 50 | 1 | 1200 | 12 | -40 to 85 | Active | ROHS3 Compliant |
| BU7487FV-E2 | Rohm Semiconductor | CMOS | 10 | 10 | 0.001 | 1 | 6000 | 12 | -40 to 105 | Active | ROHS3 Compliant |
| BU7487SFV-E2 | Rohm Semiconductor | CMOS | 10 | 10 | 0.001 | 1 | 6000 | 12 | -40 to 105 | Active | ROHS3 Compliant |
| LMR344FVJ-E2 | Rohm Semiconductor | CMOS | 1 | 2 | 0.001 | 0.25 | 400 | 113 | -40 to 85 | Active | ROHS3 Compliant |
| LMR934FVJ-E2 | Rohm Semiconductor | General Purpose | 0.35 | 1.4 | 5 | 1 | 250 | 90 | -40 to 85 | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For Direct Replacement with Active Product Status:
LMV324MTX/NOPB is the primary direct equivalent, offering identical electrical specifications to the original LMV324MTX while maintaining active product status from Texas Instruments. This part carries ROHS3 compliance certification, addressing regulatory requirements absent in the original part number. Packaging options include Cut Tape and Digi-Reel formats with 1795 units in current inventory.
For General-Purpose Applications with Extended Temperature Range:
APX324TSG-13 (Diodes Incorporated) provides general-purpose amplifier functionality with active product status and ROHS3 compliance. This part operates across -40°C to 85°C and demonstrates reduced input bias current (10 nA versus 15 nA) and lower supply current (340 µA versus 410 µA). Output current capability is reduced to 90 mA per channel. Inventory availability is substantial at 72,900 units.
For Low-Power Supply Current Applications:
LMR934FVJ-E2 (Rohm Semiconductor) offers the lowest supply current specification at 250 µA total, representing a 39% reduction from the LMV324MTX baseline. This part maintains general-purpose amplifier topology with active product status and ROHS3 compliance. Operating temperature range extends to -40°C to 85°C. Input bias current is reduced to 5 nA.
For Enhanced Performance with Higher Bandwidth Requirements:
ADA4891-4ARUZ series (Analog Devices Inc.) provides CMOS amplifier topology with significantly enhanced performance: 210 V/µs slew rate (210× improvement), 105 MHz gain bandwidth product (105× improvement), and 2 pA input bias current. These parts maintain -40°C to 125°C operating range and ROHS3 compliance. Available in three packaging configurations: Tube (ADA4891-4ARUZ), Cut Tape/Digi-Reel (ADA4891-4ARUZ-R7), and Tape & Reel (ADA4891-4ARUZ-RL).
For Balanced Performance and Low Input Offset Voltage:
LMR344FVJ-E2 (Rohm Semiconductor) combines CMOS amplifier topology with 1 V/µs slew rate and 2 MHz gain bandwidth product. This part features exceptionally low input offset voltage at 250 µV and maintains 113 mA output current per channel. Operating range is -40°C to 85°C with ROHS3 compliance and active product status.
All recommended substitutes carry ROHS3 compliance certification and active product status, addressing the regulatory and lifecycle limitations of the original LMV324MTX.
Frequently Asked Questions (FAQ)
Q: Can LMV324MTX/NOPB be used as a direct replacement for LMV324MTX?
A: Yes. LMV324MTX/NOPB is electrically identical to LMV324MTX, with identical specifications across all electrical parameters, package configuration, and operating temperature range. The primary differences are active product status and ROHS3 compliance certification. Packaging options differ (Cut Tape/Digi-Reel versus the original specification), but the component itself is functionally equivalent.
Q: What is the primary limitation of using APX324TSG-13 as a substitute?
A: APX324TSG-13 operates across -40°C to 85°C, which is narrower than the LMV324MTX range of -40°C to 125°C. Applications requiring operation above 85°C cannot use this substitute. Additionally, output current per channel is reduced to 90 mA versus 160 mA in the original part.
Q: Are CMOS amplifier substitutes (ADA4891, BU7487, LMR344) compatible with existing LMV324MTX circuit designs?
A: CMOS substitutes maintain the same 14-TSSOP package footprint and supply voltage range (2.7 V to 5.5 V), enabling direct PCB-level replacement. However, significantly enhanced performance characteristics—particularly slew rate and gain bandwidth product—may alter circuit behavior in applications with frequency-dependent feedback networks or high-speed signal processing. Circuit validation is necessary to confirm functional equivalence in specific applications.
Q: What is the difference between ADA4891-4ARUZ, ADA4891-4ARUZ-R7, and ADA4891-4ARUZ-RL?
A: These three part numbers are electrically identical with identical specifications. The differences are packaging and delivery format: ADA4891-4ARUZ is supplied in Tube packaging; ADA4891-4ARUZ-R7 is supplied in Cut Tape with Digi-Reel format; ADA4891-4ARUZ-RL is supplied in Tape & Reel format. Selection depends on assembly process requirements and inventory management preferences.
Q: Which substitute offers the lowest power consumption?
A: LMR934FVJ-E2 provides the lowest total supply current at 250 µA across four channels, representing 39% reduction from the LMV324MTX specification of 410 µA. This part is suitable for battery-powered and low-power applications while maintaining general-purpose amplifier functionality.
Q: Can BU7487FV-E2 and BU7487SFV-E2 be used interchangeably?
A: Yes. BU7487FV-E2 and BU7487SFV-E2 are electrically identical with identical specifications. The difference is packaging format: BU7487FV-E2 is supplied in Cut Tape with Digi-Reel; BU7487SFV-E2 is also supplied in Cut Tape with Digi-Reel. Both are CMOS amplifiers with 10 V/µs slew rate and 10 MHz gain bandwidth product.
Q: What is the significance of "Not For New Designs" status on the original LMV324MTX?
A: "Not For New Designs" indicates that Texas Instruments has discontinued active development and support for this part number. While existing inventory may be available, the manufacturer does not recommend this part for new circuit designs. All recommended substitutes carry "Active" product status, ensuring ongoing manufacturer support, documentation updates, and supply chain continuity.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts carry ROHS3 compliance certification. The original LMV324MTX is listed as RoHS non-compliant. This compliance difference is significant for applications subject to RoHS regulations in the European Union and other jurisdictions.
Q: Which substitute maintains the closest electrical performance match to LMV324MTX?
A: LMV324MTX/NOPB provides identical electrical specifications across all parameters. For alternative manufacturers, LMR934FVJ-E2 (Rohm Semiconductor) offers the closest performance match with general-purpose amplifier topology, 1.4 MHz gain bandwidth product, and 0.35 V/µs slew rate, while reducing input bias current to 5 nA and supply current to 250 µA.
Q: What packaging considerations apply when substituting these parts?
A: All substitute parts use 14-TSSOP surface-mount package with 0.173" width and 4.40mm body width, matching the original LMV324MTX footprint. PCB layout and reflow soldering profiles remain compatible. Delivery formats vary (Tube, Cut Tape, Digi-Reel, Tape & Reel), affecting assembly process integration but not component functionality or PCB compatibility.
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