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LMV324IPWRG4Q1 Equivalent & Substitute Parts Reference
Part Overview
The LMV324IPWRG4Q1 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 product status, making it necessary to identify functionally equivalent alternatives for new designs and ongoing production requirements.
The LMV324IPWRG4Q1 operates across a 2.7 V to 5.5 V supply range with rail-to-rail output capability, making it suitable for low-voltage analog signal processing applications. Its automotive-grade qualification (AEC-Q100) and ROHS3 compliance support use in regulated environments.
Due to its obsolete status, sourcing new inventory becomes increasingly difficult. Equivalent substitute parts maintain the same electrical performance envelope while offering active product status and improved availability.
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 (4 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 LMV324IPWRG4Q1 is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Number of Circuits: 4 independent amplifier channels
- Output Type: Rail-to-Rail configuration
- Package / Case: 14-TSSOP form factor (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
- Voltage - Supply Span: Minimum 2.7 V, Maximum 5.5 V
- Operating Temperature Range: Minimum -40°C, Maximum ≥85°C
Secondary Compatibility Parameters:
- Slew Rate: 1 V/µs (allows tolerance within application requirements)
- Gain Bandwidth Product: 1 MHz (allows tolerance within application requirements)
- Current - Input Bias: 15 nA (allows tolerance within application requirements)
- Voltage - Input Offset: 1.7 mV (allows tolerance within application requirements)
Substitute parts are grouped into two categories:
Category 1: Direct Electrical Equivalents (Texas Instruments LMV Series) Parts LMV324MT/NOPB and LMV324MTX/NOPB maintain identical electrical specifications to the main part while offering active product status. These parts differ only in packaging format (Tube vs. Cut Tape & Digi-Reel) and operating temperature maximum (125°C vs. 85°C).
Category 2: Functional Equivalents with Modified Performance Envelope Parts LPV324MT/NOPB and LPV324MTX/NOPB provide lower power consumption (28 µA vs. 410 µA) and reduced slew rate (0.1 V/µs vs. 1 V/µs), suitable for applications where bandwidth and output current requirements are less stringent.
Category 3: Cross-Manufacturer Alternatives Parts from Analog Devices Inc., Diodes Incorporated, and Rohm Semiconductor provide equivalent functionality within the 14-TSSOP package while maintaining rail-to-rail output and 2.7 V to 5.5 V supply compatibility. These alternatives vary in amplifier type (General Purpose vs. CMOS), slew rate, and gain bandwidth product.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Supply Current (µA) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|
| LMV324IPWRG4Q1 | Texas Instruments | Obsolete | General Purpose | 1 | 1 | 410 | 160 | -40 to 85 | 14-TSSOP |
| LMV324MT/NOPB | Texas Instruments | Active | General Purpose | 1 | 1 | 410 | 160 | -40 to 125 | 14-TSSOP |
| LMV324MTX/NOPB | Texas Instruments | Active | General Purpose | 1 | 1 | 410 | 160 | -40 to 125 | 14-TSSOP |
| LPV324MT/NOPB | Texas Instruments | Active | General Purpose | 0.1 | 0.152 | 28 | 16 | -40 to 85 | 14-TSSOP |
| LPV324MTX/NOPB | Texas Instruments | Active | General Purpose | 0.1 | 0.152 | 28 | 16 | -40 to 85 | 14-TSSOP |
| AD8544ARUZ-REEL | Analog Devices Inc. | Active | General Purpose | 0.92 | 1 | 45 | 30 | -40 to 125 | 14-TSSOP |
| ADA4891-4WARUZ-R7 | Analog Devices Inc. | Active | CMOS | 170 | 105 | 4400 | 125 | -40 to 125 | 14-TSSOP |
| APX324TSG-13 | Diodes Incorporated | Active | General Purpose | 1 | 1 | 340 | 90 | -40 to 85 | 14-TSSOP |
| BD12734FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 0.4 | 1 | 1200 | 12 | -40 to 85 | 14-TSSOP |
| BU7487FV-E2 | Rohm Semiconductor | Active | CMOS | 10 | 10 | 6000 | 12 | -40 to 105 | 14-LSSOP |
| BU7487SFV-E2 | Rohm Semiconductor | Active | CMOS | 10 | 10 | 6000 | 12 | -40 to 105 | 14-LSSOP |
Engineering Selection Recommendations
For Direct Replacement (Identical Electrical Performance):
LMV324MT/NOPB and LMV324MTX/NOPB are the primary recommended substitutes. Both parts maintain identical electrical specifications to the LMV324IPWRG4Q1 while offering active product status. The distinction between these two parts is packaging format: LMV324MT/NOPB is supplied in Tube packaging, while LMV324MTX/NOPB is supplied in Cut Tape & Digi-Reel format. Both achieve extended operating temperature range to 125°C, providing additional thermal margin. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).
For Low-Power Applications:
LPV324MT/NOPB and LPV324MTX/NOPB reduce supply current consumption to 28 µA (versus 410 µA in the main part), making these suitable for battery-powered or energy-constrained applications. These parts sacrifice slew rate (0.1 V/µs) and gain bandwidth product (152 kHz) compared to the main part. Selection of these parts requires verification that application bandwidth and slew rate requirements do not exceed these reduced specifications. Both parts maintain 2.7 V to 5.5 V supply compatibility and ROHS3 compliance.
For High-Performance Applications:
ADA4891-4WARUZ-R7 provides significantly elevated slew rate (170 V/µs) and gain bandwidth product (105 MHz), suitable for applications requiring higher-frequency signal processing. This CMOS amplifier increases supply current consumption to 4.4 mA and operates across -40°C to 125°C. Selection requires verification that increased power consumption is acceptable within the application power budget.
For Cross-Manufacturer Standardization:
APX324TSG-13 (Diodes Incorporated) provides electrical performance closely matching the main part (1 V/µs slew rate, 1 MHz gain bandwidth product) while offering active product status and high inventory availability (72,900 pcs). This part reduces supply current to 340 µA and output current to 90 mA compared to the main part. Operating temperature range matches the main part (-40°C to 85°C).
For Automotive and Regulated Applications:
All recommended substitute parts maintain ROHS3 compliance and surface-mount 14-TSSOP packaging. Parts from Texas Instruments (LMV324 series) and Analog Devices (AD8544ARUZ-REEL) provide extended operating temperature to 125°C, supporting automotive thermal requirements. Verify specific AEC-Q100 qualification requirements with component datasheets if automotive-grade certification is mandatory.
Frequently Asked Questions (FAQ)
Q1: Can LMV324MT/NOPB directly replace LMV324IPWRG4Q1 in existing designs?
A: Yes. LMV324MT/NOPB maintains identical electrical specifications including slew rate (1 V/µs), gain bandwidth product (1 MHz), supply current (410 µA), and output current (160 mA). Both parts operate across 2.7 V to 5.5 V supply range with rail-to-rail output in 14-TSSOP package. The primary difference is product status (Active vs. Obsolete) and extended operating temperature range (125°C vs. 85°C). No circuit modifications are required.
Q2: What is the difference between LMV324MT/NOPB and LMV324MTX/NOPB?
A: Both parts are electrically identical. The difference is packaging format and moisture sensitivity level. LMV324MT/NOPB is supplied in Tube packaging with MSL 1 (Unlimited). LMV324MTX/NOPB is supplied in Cut Tape & Digi-Reel format with MSL 2 (1 Year). For high-volume production, LMV324MTX/NOPB offers reel compatibility with automated assembly equipment. For lower-volume applications, LMV324MT/NOPB provides unlimited shelf life.
Q3: When should LPV324MT/NOPB be selected instead of LMV324MT/NOPB?
A: LPV324MT/NOPB is selected when power consumption is a critical design constraint. This part reduces supply current from 410 µA to 28 µA, a 93% reduction. However, this comes with reduced slew rate (0.1 V/µs vs. 1 V/µs) and reduced gain bandwidth product (152 kHz vs. 1 MHz). Selection requires verification that the application does not require fast signal transitions or high-frequency response. Typical applications include precision DC measurement, low-frequency filtering, and battery-powered sensor interfaces.
Q4: Is APX324TSG-13 compatible with LMV324IPWRG4Q1?
A: APX324TSG-13 provides functional compatibility within the 14-TSSOP package and 2.7 V to 5.5 V supply range. Electrical specifications are closely matched: slew rate (1 V/µs), gain bandwidth product (1 MHz), and input offset voltage (1.7 mV). Differences include reduced supply current (340 µA vs. 410 µA) and reduced output current per channel (90 mA vs. 160 mA). Verify that the application output current requirement does not exceed 90 mA per channel. Operating temperature range matches (-40°C to 85°C).
Q5: Can ADA4891-4WARUZ-R7 replace LMV324IPWRG4Q1?
A: ADA4891-4WARUZ-R7 provides functional replacement within the 14-TSSOP package and 2.7 V to 5.5 V supply range. However, this is a CMOS amplifier with significantly different performance characteristics: slew rate increases to 170 V/µs and gain bandwidth product increases to 105 MHz. Supply current increases to 4.4 mA. This part is suitable only for applications requiring higher bandwidth and faster signal transitions. Verify that increased power consumption and different frequency response characteristics are acceptable before selection.
Q6: What packaging formats are available for substitute parts?
A: Substitute parts are available in three packaging formats: Tube (standard packaging for lower-volume applications), Cut Tape & Digi-Reel (compatible with automated pick-and-place equipment), and Tape & Reel (high-volume production format). All substitute parts maintain the 14-TSSOP surface-mount form factor with 0.173" width and 4.40mm body width, ensuring PCB footprint compatibility with the original LMV324IPWRG4Q1.
Q7: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance. All parts are also REACH Unaffected and classified as EAR99 for export control purposes. Moisture sensitivity levels vary between MSL 1 (Unlimited) and MSL 3 (168 Hours), affecting storage and handling requirements. Verify specific MSL requirements for your supply chain and manufacturing environment.
Q8: Which substitute part offers the highest inventory availability?
A: ADA4891-4WARUZ-R7 offers the highest inventory availability at 50,400 pieces in stock, followed by LPV324MTX/NOPB at 10,300 pieces and APX324TSG-13 at 72,900 pieces. For immediate sourcing requirements, APX324TSG-13 provides the best combination of availability, electrical compatibility, and active product status.
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