LPV324PW Equivalent & Substitute Parts

Part Overview

The LPV324PW is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit rail-to-rail device in a 14-TSSOP surface-mount package. This part is classified as obsolete, indicating that Texas Instruments has discontinued active production and support. The LPV324PW operates across a 2.7 V to 5 V supply range with a slew rate of 0.1 V/µs and a gain bandwidth product of 237 kHz, making it suitable for low-speed, low-power analog signal processing applications.

Due to its obsolete status, sourcing new inventory from primary distributors becomes increasingly difficult. Equivalent and substitute parts provide viable alternatives that maintain functional compatibility while offering improved availability through active product lines or enhanced performance characteristics for specific application requirements.

Key Parameters

Parameter	LPV324PW
Manufacturer	Texas Instruments
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	Rail-to-Rail
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Slew Rate	0.1 V/µs
Gain Bandwidth Product	237 kHz
Current - Input Bias	2 nA
Voltage - Input Offset	1.5 mV
Current - Supply	28 µA (x4 Channels)
Current - Output / Channel	72 mA
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	5 V
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LPV324PW is determined by compatibility across the following critical parameters: package type (14-TSSOP surface mount), number of circuits (4), output configuration (rail-to-rail), supply voltage range (minimum 2.7 V), and operating temperature range (-40°C to 85°C or higher). Substitute parts are grouped into two categories based on their relationship to the original specification:

Category 1: Direct Packaging Equivalents (Same Base Product) Parts LPV324MT/NOPB and LPV324MTX/NOPB share the identical LPV324 base product number and maintain the same electrical performance characteristics as the LPV324PW. These parts differ only in packaging format (tube versus tape and reel) and represent the active production alternatives to the obsolete LPV324PW.

Category 2: Functional Substitutes (Enhanced Performance) Parts LMV324MT/NOPB and LMV324MTX/NOPB are Texas Instruments active-production alternatives that provide improved performance specifications while maintaining the same 14-TSSOP package footprint and 4-circuit configuration. These parts offer higher slew rate (1 V/µs versus 0.1 V/µs), increased gain bandwidth product (1 MHz versus 237 kHz), and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C).

Category 3: Cross-Manufacturer Alternatives Parts from Rohm Semiconductor (BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, LMR934FVJ-E2) and Microchip Technology (MCP6474-E/ST) provide 4-circuit rail-to-rail amplifiers in compatible 14-TSSOP or equivalent packages. These parts offer varying performance levels and amplifier types (general purpose or CMOS) to accommodate different application requirements.

Parameter Comparison

Parameter	LPV324PW	LPV324MT/NOPB	LPV324MTX/NOPB	LMV324MT/NOPB	LMV324MTX/NOPB	BD12734FVJ-E2	BU7487FV-E2	BU7487SFV-E2	LMR344FVJ-E2	LMR934FVJ-E2	MCP6474-E/ST
Manufacturer	TI	TI	TI	TI	TI	Rohm	Rohm	Rohm	Rohm	Rohm	Microchip
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	CMOS	CMOS	General Purpose	CMOS
Number of Circuits	4	4	4	4	4	4	4	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-LSSOP	14-LSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate	0.1 V/µs	0.1 V/µs	0.1 V/µs	1 V/µs	1 V/µs	0.4 V/µs	10 V/µs	10 V/µs	1 V/µs	0.35 V/µs	1.1 V/µs
Gain Bandwidth Product	237 kHz	152 kHz	152 kHz	1 MHz	1 MHz	1 MHz	10 MHz	10 MHz	2 MHz	1.4 MHz	2 MHz
Current - Input Bias	2 nA	2 nA	2 nA	15 nA	15 nA	50 nA	1 pA	1 pA	1 pA	5 nA	1 pA
Voltage - Input Offset	1.5 mV	1.5 mV	1.5 mV	1.7 mV	1.7 mV	1 mV	1 mV	1 mV	250 µV	1 mV	1.5 mV
Current - Supply	28 µA	28 µA	28 µA	410 µA	410 µA	1.2 mA	6 mA	6 mA	400 µA	250 µA	100 µA
Current - Output / Channel	72 mA	16 mA	16 mA	160 mA	160 mA	12 mA	12 mA	12 mA	113 mA	90 mA	32 mA
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	1.8 V	3 V	3 V	2.7 V	1.8 V	2 V
Voltage - Supply Span (Max)	5 V	5 V	5 V	5.5 V	5.5 V	5 V	5.5 V	5.5 V	5.5 V	5 V	5.5 V
Operating Temperature (Min)	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C
Operating Temperature (Max)	85°C	85°C	85°C	125°C	125°C	85°C	105°C	105°C	85°C	85°C	125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Replacement (Same Base Product)

LPV324MT/NOPB and LPV324MTX/NOPB are the primary recommended substitutes for the obsolete LPV324PW. Both parts maintain identical electrical specifications and are manufactured by Texas Instruments as active-production alternatives. The selection between these two depends on packaging requirements: LPV324MT/NOPB is supplied in tube packaging, while LPV324MTX/NOPB is supplied in tape and reel format. Both parts are ROHS3 compliant with MSL 1 rating and are suitable for direct board-level substitution without circuit redesign.

Enhanced Performance Alternative

LMV324MT/NOPB and LMV324MTX/NOPB offer improved performance characteristics while maintaining the same 14-TSSOP package footprint. These parts provide 10× higher slew rate (1 V/µs), 4× higher gain bandwidth product (1 MHz), and extended operating temperature range to 125°C. These substitutes are appropriate for applications where the original LPV324PW performance was marginal or where future thermal headroom is required. LMV324MTX/NOPB carries MSL 2 rating (1 year) compared to MSL 1 for other alternatives.

Cross-Manufacturer Alternatives

Rohm Semiconductor and Microchip Technology alternatives provide functional substitution with varying performance trade-offs. BD12734FVJ-E2 and LMR934FVJ-E2 maintain general-purpose amplifier topology with 14-TSSOP packaging. BU7487FV-E2 and BU7487SFV-E2 offer CMOS technology with significantly higher slew rate (10 V/µs) and gain bandwidth product (10 MHz) but require minimum 3 V supply. LMR344FVJ-E2 provides CMOS performance with 14-TSSOP packaging and lowest input offset voltage (250 µV). MCP6474-E/ST from Microchip offers CMOS technology with extended temperature range to 125°C and lowest minimum supply voltage (2 V).

All substitute parts are ROHS3 compliant and carry REACH unaffected status, meeting regulatory requirements equivalent to the original LPV324PW.

Frequently Asked Questions (FAQ)

Q: Can I directly replace LPV324PW with LPV324MT/NOPB or LPV324MTX/NOPB without circuit modifications?

A: Yes. LPV324MT/NOPB and LPV324MTX/NOPB are direct electrical and mechanical equivalents to the LPV324PW. Both parts share the same base product number (LPV324), identical electrical specifications, and 14-TSSOP package footprint. The only difference is packaging format (tube versus tape and reel). No circuit redesign is required.

Q: What is the difference between LPV324MTX/NOPB and LMV324MTX/NOPB?

A: Both parts are Texas Instruments active-production alternatives in 14-TSSOP packages, but they represent different product lines. LPV324MTX/NOPB maintains the original LPV324 specifications (0.1 V/µs slew rate, 152 kHz bandwidth, 28 µA supply current). LMV324MTX/NOPB is from the LMV324 product line with enhanced performance (1 V/µs slew rate, 1 MHz bandwidth, 410 µA supply current) and extended temperature range to 125°C. Selection depends on whether your application requires the original low-power characteristics or benefits from higher performance.

Q: Are the Rohm Semiconductor alternatives (BD12734FVJ-E2, BU7487FV-E2, LMR344FVJ-E2, LMR934FVJ-E2) pin-compatible with LPV324PW?

A: All Rohm alternatives are housed in 14-TSSOP or equivalent 14-LSSOP packages with the same 0.173" width and 4.40 mm pitch, providing mechanical compatibility. However, electrical performance characteristics vary significantly. BD12734FVJ-E2 and LMR934FVJ-E2 maintain general-purpose amplifier topology similar to LPV324PW. BU7487FV-E2 and BU7487SFV-E2 are CMOS devices with higher performance but require minimum 3 V supply. LMR344FVJ-E2 is CMOS with enhanced output current capability. Verify that your circuit design accommodates the specific performance characteristics of the selected alternative.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating difference between LPV324MTX/NOPB (MSL 2) and other alternatives (MSL 1)?

A: MSL 1 indicates unlimited shelf life under controlled storage conditions, while MSL 2 requires storage below 30°C and 60% relative humidity with a maximum shelf life of 1 year. For most applications with standard component handling and storage practices, this difference is not significant. However, if your supply chain involves extended storage periods or non-climate-controlled environments, MSL 1 rated parts (LPV324MT/NOPB, LPV324MTX/NOPB, LMV324MT/NOPB) provide greater flexibility.

Q: Can I use BU7487FV-E2 or BU7487SFV-E2 as substitutes if my circuit operates at 2.7 V supply voltage?

A: No. BU7487FV-E2 and BU7487SFV-E2 require a minimum supply voltage of 3 V, making them incompatible with circuits designed for 2.7 V operation. The LPV324PW, LPV324MT/NOPB, LPV324MTX/NOPB, LMV324MT/NOPB, and LMV324MTX/NOPB all support 2.7 V minimum supply. If you require a cross-manufacturer alternative for 2.7 V operation, select BD12734FVJ-E2, LMR344FVJ-E2, LMR934FVJ-E2, or MCP6474-E/ST.

Q: Which substitute offers the best low-power performance for battery-operated applications?

A: LPV324MT/NOPB and LPV324MTX/NOPB maintain the original LPV324PW's ultra-low supply current of 28 µA (x4 channels), making them ideal for battery-powered designs. MCP6474-E/ST offers moderate power consumption at 100 µA (x4 channels). LMV324MT/NOPB and LMV324MTX/NOPB consume 410 µA, while Rohm alternatives (BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, LMR934FVJ-E2) consume 1.2 mA to 6 mA, making them less suitable for ultra-low-power applications.

Q: What is the difference between the 14-TSSOP and 14-LSSOP packages used by these alternatives?

A: Both 14-TSSOP and 14-LSSOP are thin shrink small-outline packages with 0.173" width and 4.40 mm pitch, providing mechanical compatibility on standard PCB layouts. The primary difference is in lead geometry and thermal characteristics. BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP (14-SSOP-B) packaging, while most other alternatives use 14-TSSOP. For standard surface-mount assembly processes, both packages are interchangeable from a board layout perspective.

Q: Are all substitute parts ROHS3 compliant and REACH unaffected like the original LPV324PW?

A: Yes. All substitute parts listed (LPV324MT/NOPB, LPV324MTX/NOPB, LMV324MT/NOPB, LMV324MTX/NOPB, BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, LMR934FVJ-E2, MCP6474-E/ST) are ROHS3 compliant and REACH unaffected, meeting the same regulatory requirements as the original LPV324PW.

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