LPV324MT/NOPB Equivalent & Substitute Parts

Part Overview

The LPV324MT/NOPB is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface-mount package. This device operates across a 2.7 V to 5 V supply span with an operating temperature range of -40°C to 85°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the LPV324MT/NOPB reaches end-of-life status, inventory constraints occur, or application requirements demand enhanced electrical performance characteristics such as higher slew rate, increased gain-bandwidth product, or extended temperature operating ranges.

Key Parameters

Parameter	LPV324MT/NOPB
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
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	5 V
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution logic for the LPV324MT/NOPB is determined by the following critical parameters:

Mechanical Compatibility:

Package type: 14-TSSOP form factor (0.173", 4.40mm Width)
Mounting type: Surface Mount
Pin count and pinout configuration: 14-pin

Electrical Compatibility:

Number of circuits: 4 independent amplifier stages
Output type: Rail-to-Rail configuration
Supply voltage range: Minimum 2.7 V, Maximum 5 V (substitute must support this range or exceed it)
Operating temperature: -40°C to 85°C minimum requirement

Performance Parameters (Secondary Consideration):

Slew Rate: 0.1 V/µs (baseline)
Gain Bandwidth Product: 152 kHz (baseline)
Current - Input Bias: 2 nA (baseline)
Voltage - Input Offset: 1.5 mV (baseline)
Current - Supply: 28 µA per 4 channels (baseline)
Current - Output / Channel: 16 mA (baseline)

Substitute parts must maintain mechanical compatibility and support the minimum electrical operating envelope. Enhanced performance parameters (higher slew rate, increased bandwidth, lower input bias current) represent functional improvements suitable for direct substitution.

Parameter Comparison

Parameter	LPV324MT/NOPB	LMV324IPWR	LMV324QPWR	BD12734FVJ-E2	BU7487FV-E2	LMR934FVJ-E2	LMV324LIPT	MAX4478AUD+	MAX4478AUD+T	MCP6474-E/ST	MCP6484-E/ST
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	STMicroelectronics	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Microchip Technology	Microchip Technology
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	General Purpose
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	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-LSSOP	14-TSSOP	14-TSSOP	14-TSSOP	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	1 V/µs	1 V/µs	0.4 V/µs	10 V/µs	0.35 V/µs	0.7 V/µs	3 V/µs	3 V/µs	1.1 V/µs	2.7 V/µs
Gain Bandwidth Product	152 kHz	1 MHz	1 MHz	1 MHz	10 MHz	1.4 MHz	1.3 MHz	10 MHz	10 MHz	2 MHz	4 MHz
Current - Input Bias	2 nA	15 nA	15 nA	50 nA	1 pA	5 nA	27 nA	1 pA	1 pA	1 pA	1 pA
Voltage - Input Offset	1.5 mV	1.7 mV	1.7 mV	1 mV	1 mV	1 mV	1 mV	70 µV	70 µV	1.5 mV	1.5 mV
Current - Supply (x4 Channels)	28 µA	410 µA	410 µA	1.2 mA	6 mA	250 µA	130 µA	2.5 mA	2.5 mA	100 µA	240 µA
Current - Output / Channel	16 mA	40 mA	40 mA	12 mA	12 mA	90 mA	70 mA	48 mA	48 mA	32 mA	12 mA
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.7 V	1.8 V	3 V	1.8 V	2.7 V	2.7 V	2.7 V	2 V	2.2 V
Voltage - Supply Span (Max)	5 V	5.5 V	5.5 V	5 V	5.5 V	5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°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)	2 (1 Year)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the LPV324MT/NOPB baseline.

Direct Substitutes (Highest Compatibility):

LMV324IPWR and LMV324QPWR (Texas Instruments) represent the closest functional equivalents. Both devices maintain the same base product number (LMV324) and 14-TSSOP package configuration. These parts support the required 2.7 V to 5.5 V supply range and operate across -40°C to 125°C, extending the upper temperature limit. Performance improvements include 1 V/µs slew rate and 1 MHz gain-bandwidth product. MSL rating changes from 1 to 2, requiring 1-year shelf-life management.

LMV324LIPT (STMicroelectronics) provides equivalent mechanical and electrical compatibility with identical 14-TSSOP packaging. This part maintains MSL 1 (unlimited) rating and supports -40°C to 125°C operation. Slew rate increases to 0.7 V/µs with 1.3 MHz bandwidth.

Cross-Manufacturer Substitutes (Verified Compatibility):

BD12734FVJ-E2 (Rohm Semiconductor) operates within the original 2.7 V to 5 V supply range and -40°C to 85°C temperature envelope, maintaining MSL 1 rating. Package designation is 14-TSSOP-BJ. Slew rate of 0.4 V/µs and 1 MHz bandwidth provide moderate performance enhancement.

LMR934FVJ-E2 (Rohm Semiconductor) supports 1.8 V to 5 V supply range with -40°C to 85°C operation and MSL 1 rating. Package is 14-TSSOP-BJ. Output current per channel reaches 90 mA, significantly exceeding the original 16 mA specification.

Enhanced Performance Substitutes:

MAX4478AUD+ and MAX4478AUD+T (Analog Devices Inc./Maxim Integrated) deliver superior performance with 3 V/µs slew rate, 10 MHz gain-bandwidth product, and 1 pA input bias current. Push-pull output configuration provides additional drive capability. Both variants support 2.7 V to 5.5 V supply and -40°C to 125°C operation with MSL 1 rating.

MCP6474-E/ST (Microchip Technology) offers CMOS architecture with 1 pA input bias current and 1.1 V/µs slew rate. Supports 2 V to 5.5 V supply range and -40°C to 125°C operation with MSL 1 rating.

MCP6484-E/ST (Microchip Technology) provides 2.7 V/µs slew rate and 4 MHz bandwidth with 1 pA input bias current. Supports 2.2 V to 5.5 V supply and -40°C to 125°C operation with MSL 1 rating.

Package Consideration:

BU7487FV-E2 (Rohm Semiconductor) uses 14-LSSOP (14-SSOP-B) package designation, which differs from the standard 14-TSSOP form factor. PCB layout modifications may be required despite identical 0.173" width specification.

Frequently Asked Questions (FAQ)

Q: Can LMV324IPWR directly replace LPV324MT/NOPB without PCB modifications?

A: Yes. Both devices use identical 14-TSSOP packaging with matching pin assignments. Electrical compatibility is confirmed across the 2.7 V to 5 V supply range. MSL rating changes from 1 to 2, requiring proper moisture control during storage and handling.

Q: What is the primary difference between LMV324QPWR and LMV324IPWR?

A: Both parts share identical electrical specifications and 14-TSSOP packaging. The difference lies in packaging format: LMV324IPWR uses Cut Tape (CT) & Digi-Reel format, while LMV324QPWR uses Tape & Reel (TR) format. Electrical performance and pin compatibility are equivalent.

Q: Does BU7487FV-E2 require PCB layout changes?

A: BU7487FV-E2 uses 14-LSSOP (14-SSOP-B) package designation rather than standard 14-TSSOP. Although width specification matches (0.173", 4.40mm), footprint differences may exist. PCB layout verification is required before implementation.

Q: Which substitute offers the lowest power consumption?

A: MAX4478AUD+ and MAX4478AUD+T consume 2.5 mA across 4 channels, representing a significant reduction from the LPV324MT/NOPB baseline of 28 µA. However, this comparison reflects different amplifier architectures. MCP6474-E/ST consumes 100 µA, providing moderate power reduction while maintaining general-purpose amplifier characteristics.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the regulatory requirement of the LPV324MT/NOPB.

Q: What is the significance of MSL rating changes?

A: LMV324IPWR and LMV324QPWR carry MSL 2 rating (1-year shelf life) compared to the original MSL 1 (unlimited). This requires implementation of moisture control procedures during storage, transportation, and handling. Devices must be stored in dry conditions and used within 1 year of package opening.

Q: Can I use MAX4478AUD+ in applications requiring the original 152 kHz bandwidth?

A: Yes. MAX4478AUD+ provides 10 MHz gain-bandwidth product, which exceeds the original 152 kHz specification. The device operates as a direct functional upgrade. Circuit behavior may differ due to increased bandwidth; stability analysis is recommended for high-impedance source applications.

Q: Which substitute maintains the tightest input offset voltage specification?

A: MAX4478AUD+ and MAX4478AUD+T specify 70 µV input offset voltage, compared to the LPV324MT/NOPB baseline of 1.5 mV. This represents a 21-fold improvement in offset accuracy.

Q: Is LMV324LIPT (STMicroelectronics) a direct pin-for-pin replacement?

A: Yes. LMV324LIPT uses identical 14-TSSOP packaging with matching pinout. Electrical specifications support the original 2.7 V to 5 V supply range, with extended temperature operation to 125°C. MSL rating remains at 1 (unlimited).

Q: What is the primary advantage of LMR934FVJ-E2?

A: LMR934FVJ-E2 provides 90 mA output current per channel, compared to the original 16 mA specification. This 5.6-fold increase in output drive capability suits applications requiring higher load currents. Supply range extends to 1.8 V minimum, enabling low-voltage operation.

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