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LPV324PWR Equivalent & Substitute Parts
Part Overview
The LPV324PWR is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four independent circuits in a 14-TSSOP surface-mount package. This device is designed for rail-to-rail output applications with low-power consumption characteristics. The LPV324PWR is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement. Substitute parts must maintain compatibility with the original 14-TSSOP package format and support the same supply voltage range of 2.7 V to 5 V.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 0.1 | V/µs |
| Gain Bandwidth Product | 237 | kHz |
| Current - Input Bias | 2 | nA |
| Voltage - Input Offset | 1.5 | mV |
| Current - Supply (x4 Channels) | 28 | µA |
| Current - Output / Channel | 72 | mA |
| Voltage - Supply Span (Min) | 2.7 | V |
| Voltage - Supply Span (Max) | 5 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LPV324PWR are grouped based on the following critical parameters that determine functional compatibility:
Primary Compatibility Criteria:
- Package format: 14-TSSOP or equivalent 14-pin surface-mount package
- Number of circuits: 4 independent amplifier circuits
- Output configuration: Rail-to-rail output capability
- Supply voltage range: Minimum 2.7 V, maximum 5 V or higher
- Operating temperature range: Minimum -40°C, maximum 85°C or higher
- Mounting type: Surface mount
Substitution Categories:
Category 1: Direct Pin-Compatible Replacements (Same Base Product Line) LPV324MT/NOPB and LPV324MTX/NOPB maintain identical electrical specifications to the LPV324PWR, including slew rate (0.1 V/µs), gain bandwidth product (152 kHz for tube/reel variants), and supply current (28 µA). These parts differ only in packaging format (tube versus tape & reel) and product status (active versus obsolete).
Category 2: Enhanced Performance Alternatives (Texas Instruments LMV Series) LMV324MT/NOPB and LMV324MTX/NOPB provide improved performance characteristics while maintaining the same package footprint and supply voltage compatibility. These active-status parts feature increased slew rate (1 V/µs), higher gain bandwidth product (1 MHz), and extended maximum operating temperature (125°C). Supply current increases to 410 µA, and output current per channel increases to 160 mA.
Category 3: Alternative Manufacturer Solutions (Rohm Semiconductor) BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, and LMR934FVJ-E2 provide functionally equivalent four-circuit amplifier solutions in compatible 14-pin surface-mount packages. These parts maintain rail-to-rail output and support the required supply voltage range, though with varying performance characteristics and amplifier types (general purpose or CMOS).
Category 4: Microchip Technology Alternative MCP6474-E/ST offers a CMOS-based four-circuit amplifier in 14-TSSOP package with active product status and extended temperature range (-40°C to 125°C). This part maintains compatibility with the 2 V to 5.5 V supply range and provides enhanced performance metrics.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Slew Rate (V/µs) | GBW (kHz/MHz) | Supply Current (µA/mA) | Output Current/Ch (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|
| LPV324PWR | Texas Instruments | Obsolete | General Purpose | 0.1 | 237 kHz | 28 µA | 72 | -40 to 85 | 14-TSSOP |
| LPV324MT/NOPB | Texas Instruments | Active | General Purpose | 0.1 | 152 kHz | 28 µA | 16 | -40 to 85 | 14-TSSOP |
| LPV324MTX/NOPB | Texas Instruments | Active | General Purpose | 0.1 | 152 kHz | 28 µA | 16 | -40 to 85 | 14-TSSOP |
| LMV324MT/NOPB | Texas Instruments | Active | General Purpose | 1 | 1 MHz | 410 µA | 160 | -40 to 125 | 14-TSSOP |
| LMV324MTX/NOPB | Texas Instruments | Active | General Purpose | 1 | 1 MHz | 410 µA | 160 | -40 to 125 | 14-TSSOP |
| BD12734FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 0.4 | 1 MHz | 1.2 mA | 12 | -40 to 85 | 14-TSSOP |
| BU7487FV-E2 | Rohm Semiconductor | Active | CMOS | 10 | 10 MHz | 6 mA | 12 | -40 to 105 | 14-LSSOP |
| BU7487SFV-E2 | Rohm Semiconductor | Active | CMOS | 10 | 10 MHz | 6 mA | 12 | -40 to 105 | 14-LSSOP |
| LMR344FVJ-E2 | Rohm Semiconductor | Active | CMOS | 1 | 2 MHz | 400 µA | 113 | -40 to 85 | 14-TSSOP |
| LMR934FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 0.35 | 1.4 MHz | 250 µA | 90 | -40 to 85 | 14-TSSOP |
| MCP6474-E/ST | Microchip Technology | Active | CMOS | 1.1 | 2 MHz | 100 µA | 32 | -40 to 125 | 14-TSSOP |
Engineering Selection Recommendations
For Direct Replacement with Identical Specifications: Select LPV324MT/NOPB (tube packaging) or LPV324MTX/NOPB (tape & reel packaging) when the original LPV324PWR electrical characteristics must be preserved exactly. Both parts maintain the 0.1 V/µs slew rate, 28 µA supply current, and -40°C to 85°C operating range. These parts are active-status products from Texas Instruments, ensuring long-term availability and supply chain stability. The primary difference is packaging format; LPV324MTX/NOPB offers higher inventory availability (10,300 units) compared to LPV324MT/NOPB (988 units).
For Enhanced Performance with Extended Temperature Range: Select LMV324MT/NOPB or LMV324MTX/NOPB when design requirements permit increased supply current consumption (410 µA versus 28 µA) and higher output current per channel (160 mA versus 72 mA). These parts provide significantly improved slew rate (1 V/µs) and gain bandwidth product (1 MHz), with extended maximum operating temperature of 125°C. Both are active-status Texas Instruments products with ROHS3 compliance. LMV324MTX/NOPB is recommended for high-volume applications due to superior inventory availability.
For Alternative Manufacturer Solutions: BD12734FVJ-E2 (Rohm Semiconductor) provides general-purpose amplifier functionality with 1 MHz gain bandwidth product and maintains the -40°C to 85°C temperature range. This part is suitable for applications where Rohm component qualification is required.
LMR934FVJ-E2 (Rohm Semiconductor) offers general-purpose amplifier performance with 1.4 MHz gain bandwidth product and 250 µA supply current, positioned between the low-power LPV324 and higher-performance LMV324 series.
LMR344FVJ-E2 (Rohm Semiconductor) provides CMOS amplifier technology with 2 MHz gain bandwidth product and 400 µA supply current, suitable for applications requiring CMOS input characteristics.
MCP6474-E/ST (Microchip Technology) delivers CMOS amplifier performance with 2 MHz gain bandwidth product, 100 µA supply current, and extended temperature range (-40°C to 125°C). This part is recommended for designs requiring Microchip component qualification or extended temperature operation.
For High-Performance CMOS Applications: BU7487FV-E2 or BU7487SFV-E2 (Rohm Semiconductor) provide CMOS amplifier technology with 10 MHz gain bandwidth product and 10 V/µs slew rate. These parts support extended operating temperature to 105°C and are suitable for applications requiring significantly higher bandwidth than the original LPV324PWR. Note: Package designation is 14-LSSOP rather than 14-TSSOP; verify PCB footprint compatibility before selection.
Compliance and Certification: All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original LPV324PWR certifications. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001. Moisture sensitivity levels range from MSL 1 (unlimited) to MSL 2 (1 year), with most parts rated MSL 1.
Frequently Asked Questions (FAQ)
Q: Can LPV324MT/NOPB or LPV324MTX/NOPB be used as direct replacements for LPV324PWR?
A: Yes. LPV324MT/NOPB and LPV324MTX/NOPB are functionally identical to LPV324PWR in all electrical specifications, including slew rate (0.1 V/µs), supply current (28 µA), and operating temperature range (-40°C to 85°C). The only differences are packaging format (tube versus tape & reel) and product status (active versus obsolete). Both parts use the same 14-TSSOP package footprint and are fully compatible with existing PCB designs.
Q: What is the primary advantage of LMV324MT/NOPB or LMV324MTX/NOPB over the original LPV324PWR?
A: The LMV324 series provides enhanced performance with 10× higher slew rate (1 V/µs versus 0.1 V/µs), 4× higher gain bandwidth product (1 MHz versus 237 kHz), and 2× higher output current per channel (160 mA versus 72 mA). Additionally, the LMV324 series extends the maximum operating temperature to 125°C. These improvements make the LMV324 series suitable for applications requiring faster signal processing or operation in higher-temperature environments. The trade-off is increased supply current consumption (410 µA versus 28 µA).
Q: Are the Rohm Semiconductor alternatives (BD12734FVJ-E2, LMR934FVJ-E2, LMR344FVJ-E2, BU7487FV-E2, BU7487SFV-E2) pin-compatible with LPV324PWR?
A: All Rohm alternatives maintain the same 14-pin surface-mount package format and pin configuration as LPV324PWR, ensuring mechanical and electrical pin compatibility. However, verify that your design does not depend on specific electrical characteristics that differ between parts. For example, BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP package designation (versus 14-TSSOP), which may have minor footprint differences; confirm PCB compatibility before selection.
Q: What is the difference between LPV324MTX/NOPB and LMV324MTX/NOPB?
A: Both parts use identical 14-TSSOP package and tape & reel packaging. The primary differences are: (1) LPV324MTX/NOPB maintains the original low-power specifications (0.1 V/µs slew rate, 28 µA supply current, 152 kHz GBW), while LMV324MTX/NOPB provides enhanced performance (1 V/µs slew rate, 410 µA supply current, 1 MHz GBW); (2) LPV324MTX/NOPB operates to 85°C maximum, while LMV324MTX/NOPB operates to 125°C; (3) LMV324MTX/NOPB has significantly higher inventory availability (1,795 units versus 10,300 units for LPV324MTX/NOPB). Select LPV324MTX/NOPB for low-power applications; select LMV324MTX/NOPB for higher-performance requirements.
Q: Can MCP6474-E/ST from Microchip Technology be used as a substitute?
A: Yes. MCP6474-E/ST is a four-circuit CMOS amplifier in 14-TSSOP package with rail-to-rail output, supporting the 2 V to 5.5 V supply range (which encompasses the LPV324PWR range of 2.7 V to 5 V). MCP6474-E/ST provides 2 MHz gain bandwidth product and 1.1 V/µs slew rate with extended temperature range (-40°C to 125°C). This part is suitable for applications where Microchip component qualification is required or where extended temperature operation is beneficial. Supply current is 100 µA per four channels, positioning it between the low-power LPV324 and higher-current LMV324 series.
Q: What are the key differences between general-purpose and CMOS amplifier types in the substitute list?
A: General-purpose amplifiers (LPV324, LMV324, BD12734, LMR934) use bipolar or mixed-signal technology with higher input bias current (typically 2 nA to 50 nA) and lower input impedance. CMOS amplifiers (BU7487, LMR344, MCP6474) feature extremely low input bias current (1 pA) and very high input impedance, making them suitable for high-impedance signal sources and applications requiring minimal input loading. CMOS amplifiers typically offer higher slew rates and gain bandwidth products but may consume more supply current. Select based on your application's input impedance requirements and signal bandwidth needs.
Q: Is the BU7487FV-E2 package (14-LSSOP) compatible with LPV324PWR PCB footprints designed for 14-TSSOP?
A: BU7487FV-E2 uses 14-LSSOP package designation, which differs from the 14-TSSOP package of LPV324PWR. While both are 14-pin surface-mount packages with 0.173" width and 4.40mm body width, minor footprint differences may exist. Verify PCB footprint compatibility with your design documentation before selecting BU7487FV-E2. If footprint compatibility cannot be confirmed, select alternative parts using standard 14-TSSOP package (LPV324MT/NOPB, LMV324MT/NOPB, BD12734FVJ-E2, LMR344FVJ-E2, LMR934FVJ-E2, or MCP6474-E/ST).
Q: Which substitute part offers the best balance of performance and low power consumption?
A: LMR934FVJ-E2 (Rohm Semiconductor) provides an optimal balance with 1.4 MHz gain bandwidth product, 0.35 V/µs slew rate, and 250 µA supply current. This part offers approximately 9× higher gain bandwidth product than LPV324PWR while maintaining supply current only 9× higher (250 µA versus 28 µA). For applications requiring moderate performance improvement without excessive power consumption increase, LMR934FVJ-E2 is a suitable choice. Alternatively, MCP6474-E/ST offers 2 MHz gain bandwidth product with only 100 µA supply current, providing superior power efficiency for CMOS-compatible designs.
Q: What is the significance of MSL (Moisture Sensitivity Level) ratings in the substitute parts?
A: Most substitute parts are rated MSL 1 (unlimited moisture sensitivity), identical to LPV324PWR, indicating no special moisture control requirements during storage or handling. LMV324MTX/NOPB is rated MSL 2 (1 year), requiring moisture control measures if the component is stored for extended periods before assembly. For standard manufacturing environments with normal storage conditions, MSL rating differences are not significant. If your facility has extended component storage periods, verify MSL compatibility with your moisture control procedures.
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