LPV324IPWR Equivalent & Substitute Parts

Part Overview

The LPV324IPWR 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, which necessitates identification of equivalent and substitute components for ongoing design support and production continuity. The LPV324IPWR operates across a 2.7 V to 5 V supply range with rail-to-rail output capability, making it suitable for low-power analog signal processing applications. Due to its obsolete status, active alternatives with compatible electrical and mechanical characteristics are required for new designs and component replacement.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	LPV324IPWR	—
Manufacturer	Texas Instruments	—
Product Status	Obsolete	—
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	—
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5	V
Operating Temperature	-40°C ~ 125°C	—
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
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LPV324IPWR is determined by strict compatibility across electrical and mechanical parameters. The critical selection criteria are:

Mechanical Compatibility: All substitute parts must use the 14-TSSOP surface-mount package with 0.173" width and 4.40mm dimensions to ensure PCB footprint compatibility without layout redesign.

Electrical Compatibility: Substitute parts must operate within the 2.7 V to 5 V supply voltage range and maintain rail-to-rail output capability. The four-circuit configuration is mandatory for direct replacement in existing designs.

Performance Parameters: While the LPV324IPWR operates at 0.1 V/µs slew rate and 237 kHz gain bandwidth product, substitute parts may exceed these specifications without causing functional incompatibility, as higher performance parameters are backward-compatible in most applications.

Operating Temperature: The LPV324IPWR supports -40°C to 125°C operation. Substitute parts with equal or extended temperature ranges are acceptable.

Compliance & Status: All substitute parts must maintain ROHS3 compliance and MSL rating of 1 (Unlimited) or equivalent to ensure manufacturing and storage compatibility.

The substitute parts are grouped into two categories: direct Texas Instruments alternatives (LMV324 and LPV324 series variants) and cross-manufacturer equivalents (Rohm Semiconductor and Microchip Technology devices) that meet the same electrical and mechanical specifications.

Parameter Comparison

Parameter	LPV324IPWR	LMV324MT/NOPB	LMV324MTX/NOPB	LPV324MT/NOPB	LPV324MTX/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
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	5.5 V	5.5 V	5 V	5 V	5 V	5.5 V	5.5 V	5.5 V	5 V	5.5 V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C
Slew Rate	0.1 V/µs	1 V/µs	1 V/µs	0.1 V/µs	0.1 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	1 MHz	1 MHz	152 kHz	152 kHz	1 MHz	10 MHz	10 MHz	2 MHz	1.4 MHz	2 MHz
Current - Input Bias	2 nA	15 nA	15 nA	2 nA	2 nA	50 nA	1 pA	1 pA	1 pA	5 nA	1 pA
Voltage - Input Offset	1.5 mV	1.7 mV	1.7 mV	1.5 mV	1.5 mV	1 mV	1 mV	1 mV	250 µV	1 mV	1.5 mV
Current - Supply	28 µA	410 µA	410 µA	28 µA	28 µA	1.2 mA	6 mA	6 mA	400 µA	250 µA	100 µA
Current - Output / Channel	72 mA	160 mA	160 mA	16 mA	16 mA	12 mA	12 mA	12 mA	113 mA	90 mA	32 mA
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	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: LPV324MT/NOPB and LPV324MTX/NOPB

The LPV324MT/NOPB and LPV324MTX/NOPB are the preferred direct substitutes for the obsolete LPV324IPWR. Both parts maintain identical electrical specifications including 0.1 V/µs slew rate, 152 kHz gain bandwidth product, 2 nA input bias current, and 28 µA supply current. These devices are manufactured by Texas Instruments and carry active product status, ensuring long-term availability and supply chain continuity. Both variants use the 14-TSSOP package and maintain ROHS3 compliance with MSL rating of 1 (Unlimited). The LPV324MT/NOPB is packaged in Tube format, while the LPV324MTX/NOPB uses Tape & Reel (TR) packaging. The primary difference is operating temperature range: LPV324MT/NOPB supports -40°C to 85°C, while the original LPV324IPWR extends to 125°C. For applications requiring the full -40°C to 125°C range, LMV324MT/NOPB or MCP6474-E/ST are suitable alternatives.

Secondary Recommendation: LMV324MT/NOPB and LMV324MTX/NOPB

The LMV324 series variants offer enhanced performance with 1 V/µs slew rate and 1 MHz gain bandwidth product, representing a performance upgrade from the original LPV324IPWR. These devices maintain the 14-TSSOP package, 2.7 V to 5.5 V supply range, and support the full -40°C to 125°C operating temperature. LMV324MT/NOPB is supplied in Tube packaging with 2200 units in stock, while LMV324MTX/NOPB uses Cut Tape & Digi-Reel® packaging with 1795 units available. The LMV324MTX/NOPB carries MSL rating of 2 (1 Year), requiring controlled storage conditions. Both variants are ROHS3 compliant and maintain active product status.

Cross-Manufacturer Alternatives:

For applications where higher performance or extended supply voltage ranges are beneficial, the following cross-manufacturer alternatives are available:

BD12734FVJ-E2 (Rohm Semiconductor): General-purpose amplifier with 0.4 V/µs slew rate and 1 MHz gain bandwidth product. Supports 1.8 V to 5 V supply range, extending lower voltage operation. Operating temperature range is -40°C to 85°C. Current supply is 1.2 mA with 12 mA output per channel. ROHS3 compliant with MSL 1 (Unlimited).

LMR934FVJ-E2 (Rohm Semiconductor): General-purpose amplifier with 0.35 V/µs slew rate and 1.4 MHz gain bandwidth product. Supports 1.8 V to 5 V supply range. Operating temperature range is -40°C to 85°C. Current supply is 250 µA with 90 mA output per channel. ROHS3 compliant with MSL 1 (Unlimited).

LMR344FVJ-E2 (Rohm Semiconductor): CMOS amplifier with 1 V/µs slew rate and 2 MHz gain bandwidth product. Supports 2.7 V to 5.5 V supply range. Operating temperature range is -40°C to 85°C. Current supply is 400 µA with 113 mA output per channel. ROHS3 compliant with MSL 1 (Unlimited).

BU7487FV-E2 and BU7487SFV-E2 (Rohm Semiconductor): CMOS amplifiers with 10 V/µs slew rate and 10 MHz gain bandwidth product. Support 3 V to 5.5 V supply range. Operating temperature range is -40°C to 105°C. Current supply is 6 mA with 12 mA output per channel. Package is 14-LSSOP (0.173", 4.40mm Width). ROHS3 compliant with MSL 1 (Unlimited). Note: Package variant differs from LPV324IPWR.

MCP6474-E/ST (Microchip Technology): CMOS amplifier with 1.1 V/µs slew rate and 2 MHz gain bandwidth product. Supports 2 V to 5.5 V supply range. Operating temperature range is -40°C to 125°C. Current supply is 100 µA with 32 mA output per channel. 14-TSSOP package. ROHS3 compliant with MSL 1 (Unlimited).

Selection Criteria Summary:

For direct replacement without design modification, select LPV324MT/NOPB or LPV324MTX/NOPB. For enhanced performance with extended temperature range, select LMV324MT/NOPB or LMV324MTX/NOPB. For extended supply voltage range or specific performance requirements, evaluate cross-manufacturer alternatives based on application-specific electrical requirements. All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring manufacturing and storage compatibility with the original LPV324IPWR.

Frequently Asked Questions (FAQ)

Q1: Can LMV324MT/NOPB directly replace LPV324IPWR without PCB modifications?

A: Yes. Both devices use the 14-TSSOP package with identical 0.173" width and 4.40mm dimensions. PCB footprint compatibility is maintained. However, the LMV324MT/NOPB exhibits higher slew rate (1 V/µs vs. 0.1 V/µs) and gain bandwidth product (1 MHz vs. 237 kHz). These performance enhancements are backward-compatible in most applications and do not require circuit redesign.

Q2: What is the difference between LPV324MT/NOPB and LPV324MTX/NOPB?

A: Both parts are electrically identical with matching specifications. The primary difference is packaging format: LPV324MT/NOPB is supplied in Tube packaging, while LPV324MTX/NOPB uses Tape & Reel (TR) format. Selection depends on manufacturing process requirements and inventory management preferences. LPV324MTX/NOPB offers higher stock availability (10,300 units vs. 988 units).

Q3: Why does LMV324MTX/NOPB have MSL rating of 2 instead of 1?

A: MSL (Moisture Sensitivity Level) rating of 2 indicates a 1-year shelf life under controlled storage conditions (typically 30°C, 60% relative humidity). MSL 1 (Unlimited) allows indefinite storage without moisture control. For applications with extended storage periods or variable environmental conditions, MSL 1 rated parts (LPV324MT/NOPB, LPV324MTX/NOPB) are preferred. MSL 2 parts require baking before reflow soldering if storage exceeds specified limits.

Q4: Can BU7487FV-E2 replace LPV324IPWR in existing designs?

A: BU7487FV-E2 is electrically compatible but uses 14-LSSOP package instead of 14-TSSOP. While both packages have identical 0.173" width and 4.40mm dimensions, the LSSOP variant has different lead geometry. PCB footprint modification is required. Additionally, BU7487FV-E2 requires minimum 3 V supply (vs. 2.7 V for LPV324IPWR) and has higher supply current (6 mA vs. 28 µA). Use only if PCB redesign is acceptable and supply voltage is ≥3 V.

Q5: Which substitute offers the lowest power consumption?

A: LPV324MT/NOPB and LPV324MTX/NOPB maintain the original 28 µA supply current specification. MCP6474-E/ST offers 100 µA supply current, which is still low-power but higher than the LPV324 variants. For ultra-low-power applications, LPV324 series parts are optimal.

Q6: What is the maximum output current for each substitute?

A: LMV324MT/NOPB and LMV324MTX/NOPB provide 160 mA per channel. LPV324MT/NOPB and LPV324MTX/NOPB provide 16 mA per channel. LMR344FVJ-E2 provides 113 mA per channel. LMR934FVJ-E2 provides 90 mA per channel. BD12734FVJ-E2, BU7487FV-E2, and BU7487SFV-E2 provide 12 mA per channel. MCP6474-E/ST provides 32 mA per channel. Select based on load current requirements.

Q7: Are all substitutes ROHS3 compliant?

A: Yes. All recommended substitute parts carry ROHS3 compliance certification, ensuring compatibility with environmental regulations and manufacturing standards equivalent to the original LPV324IPWR.

Q8: Which substitute supports the widest supply voltage range?

A: MCP6474-E/ST supports 2 V to 5.5 V, offering the lowest minimum supply voltage. LMR934FVJ-E2 and BD12734FVJ-E2 support 1.8 V to 5 V. LMV324 series supports 2.7 V to 5.5 V. BU7487 series requires minimum 3 V. For applications with supply voltages below 2.7 V, cross-manufacturer alternatives are necessary.

Q9: Which substitute maintains the original operating temperature range of -40°C to 125°C?

A: LMV324MT/NOPB, LMV324MTX/NOPB, and MCP6474-E/ST all support -40°C to 125°C operation, matching the original LPV324IPWR specification. LPV324MT/NOPB and LPV324MTX/NOPB support -40°C to 85°C. All other substitutes support -40°C to 85°C or -40°C to 105°C. For extended temperature applications, select LMV324 or MCP6474 variants.

Q10: What is the input bias current specification for CMOS variants?

A: CMOS amplifiers (BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, MCP6474-E/ST) specify 1 pA input bias current, significantly lower than bipolar or general-purpose variants. This characteristic is beneficial for high-impedance input applications. General-purpose variants (LPV324, LMV324, BD12734FVJ-E2, LMR934FVJ-E2) specify 2 nA to 50 nA input bias current.

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