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LMV324IPWRQ1 Equivalent & Substitute Parts
Part Overview
The LMV324IPWRQ1 is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four independent circuits in a 14-TSSOP surface-mount package. This device is classified as Obsolete and has been superseded by active alternatives. The LMV324IPWRQ1 provides rail-to-rail output capability with a 1 MHz gain-bandwidth product, making it suitable for low-power analog signal processing applications requiring automotive-grade qualification (AEC-Q100).
Due to its obsolete status, locating equivalent or substitute parts is necessary for ongoing production, maintenance, and new design implementations. Active alternatives with comparable electrical characteristics and identical packaging 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 85 | °C |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the LMV324IPWRQ1 is determined by the following critical parameters:
Primary Substitution Criteria:
- Number of Circuits: Must be 4 independent amplifier circuits
- Output Type: Must be Rail-to-Rail
- Package / Case: Must be 14-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Must be Surface Mount
- Voltage - Supply Span: Must support minimum 2.7 V and maximum 5.5 V
- Slew Rate: Must be ≥ 1 V/µs for equivalent performance
- Gain Bandwidth Product: Must be ≥ 1 MHz for equivalent performance
Secondary Compatibility Factors:
- Operating temperature range (minimum -40°C, maximum ≥ 85°C)
- Current - Input Bias (lower values preferred for precision applications)
- Voltage - Input Offset (lower values preferred for precision applications)
- RoHS3 compliance and MSL rating
Substitute parts are grouped into two categories:
Category 1: Direct Equivalents (Texas Instruments LMV Series) Parts LMV324MT/NOPB and LMV324MTX/NOPB are direct successors with identical electrical specifications and active product status. These represent the primary substitution path.
Category 2: Functional Equivalents (Alternative Manufacturers) Parts from Analog Devices (AD8544ARUZ, ADA4891-4WARUZ-R7), Diodes Incorporated (APX324TSG-13), and Rohm Semiconductor (BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2) meet the core substitution criteria with variations in performance characteristics and supply current consumption.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Temp Range (°C) | Packaging |
|---|---|---|---|---|---|---|---|---|---|---|
| LMV324IPWRQ1 | Texas Instruments | Obsolete | 1 | 1 | 15 | 1.7 | 410 | 160 | -40 to 85 | 14-TSSOP |
| LMV324MT/NOPB | Texas Instruments | Active | 1 | 1 | 15 | 1.7 | 410 | 160 | -40 to 125 | 14-TSSOP |
| LMV324MTX/NOPB | Texas Instruments | Active | 1 | 1 | 15 | 1.7 | 410 | 160 | -40 to 125 | 14-TSSOP |
| LPV324MT/NOPB | Texas Instruments | Active | 0.1 | 0.152 | 2 | 1.5 | 28 | 16 | -40 to 85 | 14-TSSOP |
| LPV324MTX/NOPB | Texas Instruments | Active | 0.1 | 0.152 | 2 | 1.5 | 28 | 16 | -40 to 85 | 14-TSSOP |
| AD8544ARUZ | Analog Devices Inc. | Active | 0.92 | 1 | 0.004 | 1 | 45 | 30 | -40 to 125 | 14-TSSOP |
| ADA4891-4WARUZ-R7 | Analog Devices Inc. | Active | 170 | 105 | 0.002 | 2.5 | 4400 | 125 | -40 to 125 | 14-TSSOP |
| APX324TSG-13 | Diodes Incorporated | Active | 1 | 1 | 10 | 1.7 | 340 | 90 | -40 to 85 | 14-TSSOP |
| BD12734FVJ-E2 | Rohm Semiconductor | Active | 0.4 | 1 | 50 | 1 | 1200 | 12 | -40 to 85 | 14-TSSOP |
| BU7487FV-E2 | Rohm Semiconductor | Active | 10 | 10 | 0.001 | 1 | 6000 | 12 | -40 to 105 | 14-LSSOP |
| BU7487SFV-E2 | Rohm Semiconductor | Active | 10 | 10 | 0.001 | 1 | 6000 | 12 | -40 to 105 | 14-LSSOP |
Engineering Selection Recommendations
Tier 1: Direct Replacement (Recommended)
LMV324MT/NOPB and LMV324MTX/NOPB are the primary substitutes for LMV324IPWRQ1. Both parts are manufactured by Texas Instruments, maintain identical electrical specifications, and are in active production status. The key advantage is extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Packaging options differ: LMV324MT/NOPB is supplied in Tube packaging, while LMV324MTX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format. Both are ROHS3 compliant with MSL 1 rating.
Tier 2: Performance-Matched Alternatives
APX324TSG-13 (Diodes Incorporated) provides electrical performance closely matching the original part with 1 V/µs slew rate and 1 MHz gain-bandwidth product. This part is supplied in Tape & Reel (TR) format and maintains the same operating temperature range as the original (-40°C to 85°C). Supply current is slightly lower at 340 µA versus 410 µA, and output current per channel is reduced to 90 mA versus 160 mA.
AD8544ARUZ (Analog Devices Inc.) offers equivalent slew rate and gain-bandwidth product with superior input bias current (4 pA versus 15 nA) and extended temperature range to 125°C. This part is suitable for precision applications requiring lower input bias current.
Tier 3: Low-Power Alternatives
LPV324MT/NOPB and LPV324MTX/NOPB (Texas Instruments) are manufacturer-recommended alternatives for applications prioritizing power consumption. These parts reduce supply current to 28 µA (versus 410 µA) but operate at reduced slew rate (0.1 V/µs) and lower gain-bandwidth product (152 kHz). These are suitable only for applications where bandwidth and slew rate requirements are less stringent.
Tier 4: High-Performance Alternatives
ADA4891-4WARUZ-R7 (Analog Devices Inc.) is a CMOS amplifier with significantly higher performance: 170 V/µs slew rate and 105 MHz gain-bandwidth product. This part is suitable for applications requiring higher bandwidth and faster transient response but consumes substantially more supply current (4.4 mA).
Tier 5: Specialized Alternatives
BU7487FV-E2 and BU7487SFV-E2 (Rohm Semiconductor) are CMOS amplifiers with 10 V/µs slew rate and 10 MHz gain-bandwidth product. These parts feature extremely low input bias current (1 pA) but have reduced output current capability (12 mA per channel) and higher supply current consumption (6 mA).
BD12734FVJ-E2 (Rohm Semiconductor) is a general-purpose amplifier with 1 MHz gain-bandwidth product but reduced slew rate (0.4 V/µs) and significantly higher supply current (1.2 mA).
Compliance and Certification:
All substitute parts maintain ROHS3 compliance. The original LMV324IPWRQ1 carries automotive-grade qualification (AEC-Q100). Direct replacements LMV324MT/NOPB and LMV324MTX/NOPB do not explicitly list AEC-Q100 qualification in the provided data; verification with Texas Instruments is recommended for automotive applications requiring this certification.
Frequently Asked Questions (FAQ)
Q1: Can LMV324MT/NOPB directly replace LMV324IPWRQ1 in existing designs?
A: Yes. LMV324MT/NOPB is electrically identical to LMV324IPWRQ1 with identical slew rate (1 V/µs), gain-bandwidth product (1 MHz), input bias current (15 nA), and input offset voltage (1.7 mV). Both are packaged in 14-TSSOP with rail-to-rail output. The primary difference is extended operating temperature range (125°C maximum versus 85°C) and active product status. Packaging format differs: LMV324MT/NOPB uses Tube packaging while LMV324MTX/NOPB uses Cut Tape & Digi-Reel®. Verify AEC-Q100 qualification status with Texas Instruments if automotive certification is required.
Q2: What is the difference between LMV324MT/NOPB and LMV324MTX/NOPB?
A: Both parts are electrically identical. The difference is packaging and moisture sensitivity level (MSL). LMV324MT/NOPB is supplied in Tube packaging with MSL 1 (Unlimited shelf life). LMV324MTX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format with MSL 2 (1 Year shelf life). Select based on procurement and storage requirements.
Q3: Why would I choose APX324TSG-13 over LMV324MT/NOPB?
A: APX324TSG-13 (Diodes Incorporated) offers lower supply current consumption (340 µA versus 410 µA) while maintaining equivalent slew rate and gain-bandwidth product. This part is suitable for battery-powered or power-constrained applications. However, output current per channel is reduced to 90 mA versus 160 mA. Verify output current requirements before substitution.
Q4: When should I use LPV324MT/NOPB instead of LMV324MT/NOPB?
A: LPV324MT/NOPB is a low-power alternative consuming only 28 µA supply current (versus 410 µA). However, this part operates at reduced slew rate (0.1 V/µs versus 1 V/µs) and lower gain-bandwidth product (152 kHz versus 1 MHz). Use LPV324MT/NOPB only in applications where bandwidth and slew rate requirements are less stringent and power consumption is the primary design constraint.
Q5: Is AD8544ARUZ a suitable replacement for precision applications?
A: AD8544ARUZ (Analog Devices Inc.) is suitable for precision applications requiring lower input bias current (4 pA versus 15 nA). This part maintains equivalent slew rate (0.92 V/µs, slightly lower than 1 V/µs) and gain-bandwidth product (1 MHz). Extended operating temperature range to 125°C is an additional advantage. Supply current is lower at 45 µA, but output current per channel is reduced to 30 mA.
Q6: What are the package compatibility considerations?
A: All substitute parts except BU7487FV-E2 and BU7487SFV-E2 use 14-TSSOP packaging identical to the original LMV324IPWRQ1. BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP (14-SSOP-B) packaging, which has different pin spacing and is not directly compatible with 14-TSSOP footprints. Verify PCB layout compatibility before selecting these alternatives.
Q7: Which substitute part has the lowest input bias current?
A: BU7487FV-E2 and BU7487SFV-E2 (Rohm Semiconductor) have the lowest input bias current at 1 pA. ADA4891-4WARUZ-R7 (Analog Devices Inc.) has 2 pA input bias current. These CMOS amplifiers are suitable for high-impedance input applications. However, both have significantly higher supply current consumption and reduced output current capability compared to the original part.
Q8: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed are ROHS3 compliant. Moisture sensitivity levels vary: most parts have MSL 1 (Unlimited), while LMV324MTX/NOPB has MSL 2 (1 Year) and APX324TSG-13 has MSL 3 (168 Hours). Select based on storage and handling requirements.
Q9: Can I use ADA4891-4WARUZ-R7 for high-speed applications?
A: Yes. ADA4891-4WARUZ-R7 is a high-performance CMOS amplifier with 170 V/µs slew rate and 105 MHz gain-bandwidth product, significantly exceeding the original part's specifications. This part is suitable for applications requiring higher bandwidth and faster transient response. However, supply current consumption is substantially higher at 4.4 mA, and output current per channel is 125 mA (lower than the original 160 mA).
Q10: What is the recommended substitute for automotive applications requiring AEC-Q100 qualification?
A: LMV324MT/NOPB or LMV324MTX/NOPB are the recommended substitutes as they are manufactured by Texas Instruments, the original manufacturer. However, AEC-Q100 qualification status is not explicitly confirmed in the provided data. Contact Texas Instruments directly to verify AEC-Q100 qualification before finalizing automotive designs. If AEC-Q100 certification cannot be confirmed, alternative qualified suppliers should be evaluated.
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