LPV324IPWRG4 Equivalent & Substitute Parts

Part Overview

The LPV324IPWRG4 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 is classified as obsolete product status. Due to its obsolete classification, equivalent and substitute parts with active product status are necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through equivalent electrical characteristics and identical or compatible packaging specifications.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	LPV324IPWRG4	—
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 to 125	°C
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the LPV324IPWRG4 are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Number of Circuits: 4 (all substitutes must be quad amplifiers)
Output Type: Rail-to-Rail (all substitutes must support rail-to-rail output)
Package / Case: 14-TSSOP or compatible 14-pin surface mount packages
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 2.7 V to 5 V range (substitutes must support this range or broader)
Operating Temperature: -40°C to 125°C or -40°C to 85°C (substitutes must cover the required temperature range)

Secondary Compatibility Considerations:

Amplifier Type: General Purpose or CMOS (both are functionally compatible in general purpose applications)
Slew Rate: 0.1 V/µs or higher (higher slew rates are acceptable)
Gain Bandwidth Product: 237 kHz or higher (higher bandwidth is acceptable)
Current - Input Bias: 2 nA or lower (lower bias current is acceptable)
Voltage - Input Offset: 1.5 mV or lower (lower offset voltage is acceptable)
Current - Supply: 28 µA or higher (higher supply current is acceptable within design constraints)
Current - Output / Channel: 72 mA or higher (higher output current is acceptable)

Substitutes are grouped into two categories: Texas Instruments LMV324 Series (active status, enhanced performance) and Alternative Manufacturers (Rohm Semiconductor, Microchip Technology) offering equivalent or superior electrical characteristics.

Parameter Comparison

Parameter	LPV324IPWRG4	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
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 (V/µs)	0.1	1	1	0.1	0.1	0.4	10	10	1	0.35	1.1
Gain Bandwidth Product (kHz)	237	1000	1000	152	152	1000	10000	10000	2000	1400	2000
Current - Input Bias (nA)	2	15	15	2	2	50	1 pA	1 pA	1 pA	5	1 pA
Voltage - Input Offset (mV)	1.5	1.7	1.7	1.5	1.5	1	1	1	0.25	1	1.5
Current - Supply (µA)	28	410	410	28	28	1200	6000	6000	400	250	100
Current - Output / Channel (mA)	72	160	160	16	16	12	12	12	113	90	32
Voltage - Supply Span Min (V)	2.7	2.7	2.7	2.7	2.7	1.8	3	3	2.7	1.8	2
Voltage - Supply Span Max (V)	5	5.5	5.5	5	5	5	5.5	5.5	5.5	5	5.5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 105	-40 to 105	-40 to 85	-40 to 85	-40 to 125
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: LMV324MT/NOPB or LMV324MTX/NOPB

The LMV324 series represents the direct active-status successor to the obsolete LPV324IPWRG4. Both LMV324MT/NOPB (Tube packaging) and LMV324MTX/NOPB (Cut Tape & Digi-Reel packaging) maintain identical package specifications (14-TSSOP) and support the full operating temperature range (-40°C to 125°C). These parts offer enhanced electrical performance with 1 MHz gain bandwidth product and 1 V/µs slew rate compared to the original 237 kHz and 0.1 V/µs specifications. Both are ROHS3 compliant with MSL 1 rating. The LMV324MTX/NOPB variant provides higher inventory availability (10,300 pcs) in tape and reel format suitable for automated assembly.

Secondary Recommendation: LPV324MT/NOPB or LPV324MTX/NOPB

For applications requiring electrical characteristics identical to the LPV324IPWRG4 (0.1 V/µs slew rate, 152 kHz gain bandwidth product, 2 nA input bias current), the LPV324MT/NOPB and LPV324MTX/NOPB variants provide direct electrical equivalence with active product status. These parts maintain the same 14-TSSOP package and ROHS3 compliance. Operating temperature range is limited to -40°C to 85°C. The LPV324MTX/NOPB offers superior inventory availability (10,300 pcs) in tape and reel format.

Alternative Manufacturers:

BD12734FVJ-E2 (Rohm Semiconductor) provides general purpose amplifier functionality with 1 MHz bandwidth and 0.4 V/µs slew rate in 14-TSSOP package, supporting -40°C to 85°C temperature range. This part is suitable for applications where lower supply voltage operation (1.8 V minimum) is required.

BU7487FV-E2 and BU7487SFV-E2 (Rohm Semiconductor) are CMOS amplifiers offering superior slew rate (10 V/µs) and gain bandwidth product (10 MHz) with extremely low input bias current (1 pA). These parts operate at 3 V to 5.5 V supply range and -40°C to 105°C temperature range. Package is 14-LSSOP (compatible footprint with 14-TSSOP).

LMR344FVJ-E2 (Rohm Semiconductor) is a CMOS amplifier with 2 MHz bandwidth and 1 V/µs slew rate in 14-TSSOP package, supporting 2.7 V to 5.5 V supply range and -40°C to 85°C temperature range.

LMR934FVJ-E2 (Rohm Semiconductor) is a general purpose amplifier with 1.4 MHz bandwidth and 0.35 V/µs slew rate in 14-TSSOP package, supporting 1.8 V to 5 V supply range and -40°C to 85°C temperature range.

MCP6474-E/ST (Microchip Technology) is a CMOS amplifier with 2 MHz bandwidth and 1.1 V/µs slew rate in 14-TSSOP package, supporting 2 V to 5.5 V supply range and -40°C to 125°C temperature range. This part offers the broadest supply voltage range among alternatives.

All substitute parts are ROHS3 compliant with MSL 1 rating and maintain the 4-circuit, rail-to-rail, surface mount configuration required for functional compatibility.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace LPV324IPWRG4 with LMV324MT/NOPB without circuit modifications?

A: Yes. Both parts are 4-circuit rail-to-rail operational amplifiers in identical 14-TSSOP packages with compatible supply voltage ranges (2.7 V to 5 V for LPV324IPWRG4; 2.7 V to 5.5 V for LMV324MT/NOPB). The LMV324 offers enhanced performance (1 MHz vs. 237 kHz bandwidth) and maintains the same operating temperature range (-40°C to 125°C). Pin-for-pin compatibility is maintained. No circuit modifications are required.

Q2: What is the difference between LPV324MT/NOPB and LMV324MT/NOPB?

A: Both are Texas Instruments quad operational amplifiers in 14-TSSOP packages with active product status. The LPV324MT/NOPB maintains the original electrical characteristics (0.1 V/µs slew rate, 152 kHz bandwidth, 2 nA input bias current) with operating temperature range -40°C to 85°C. The LMV324MT/NOPB offers enhanced performance (1 V/µs slew rate, 1 MHz bandwidth, 15 nA input bias current) with extended operating temperature range -40°C to 125°C. Select LPV324MT/NOPB for applications requiring the original performance profile; select LMV324MT/NOPB for applications benefiting from higher bandwidth and full temperature range.

Q3: Are the Rohm Semiconductor alternatives (BD12734FVJ-E2, BU7487FV-E2, LMR344FVJ-E2, LMR934FVJ-E2) pin-compatible with LPV324IPWRG4?

A: All Rohm alternatives maintain the 14-pin surface mount package configuration and quad amplifier topology. BD12734FVJ-E2, LMR344FVJ-E2, and LMR934FVJ-E2 use 14-TSSOP packages identical to the original part. BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP packages with compatible footprints. Pin assignments for operational amplifier circuits (power supply, ground, input, output, compensation) follow industry-standard conventions. Verify specific pin assignments in device datasheets before implementation.

Q4: Which substitute part offers the lowest power consumption?

A: MCP6474-E/ST (Microchip Technology) offers the lowest supply current at 100 µA total for 4 channels, compared to 28 µA for the original LPV324IPWRG4. However, if maintaining the original 28 µA specification is critical, select LPV324MT/NOPB or LPV324MTX/NOPB, which provide identical supply current characteristics.

Q5: Can I use BU7487FV-E2 or BU7487SFV-E2 in place of LPV324IPWRG4?

A: BU7487FV-E2 and BU7487SFV-E2 are functionally compatible as quad rail-to-rail amplifiers in surface mount packages. However, these CMOS devices offer significantly different electrical characteristics: 10 V/µs slew rate (vs. 0.1 V/µs), 10 MHz bandwidth (vs. 237 kHz), and 1 pA input bias current (vs. 2 nA). The minimum supply voltage is 3 V (vs. 2.7 V). These parts are suitable for applications requiring high-speed operation and extremely low input bias current. Verify circuit requirements before substitution.

Q6: What is the difference between tube and tape & reel packaging options?

A: Tube packaging (LMV324MT/NOPB, LPV324MT/NOPB) is suitable for manual assembly and small-volume production. Cut Tape & Digi-Reel packaging (LMV324MTX/NOPB, LPV324MTX/NOPB) is optimized for automated pick-and-place assembly in high-volume manufacturing. Both packaging formats contain identical electronic components with identical electrical specifications. Select based on assembly process requirements and production volume.

Q7: Do all substitute parts meet RoHS3 compliance?

A: Yes. All substitute parts listed (LMV324MT/NOPB, LMV324MTX/NOPB, LPV324MT/NOPB, LPV324MTX/NOPB, BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, LMR934FVJ-E2, MCP6474-E/ST) are ROHS3 compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity level rating.

Q8: Which substitute part supports the widest supply voltage range?

A: MCP6474-E/ST (Microchip Technology) supports the widest supply voltage range at 2 V to 5.5 V, compared to 2.7 V to 5 V for the original LPV324IPWRG4. This extended lower voltage limit enables operation in battery-powered and low-voltage applications.

Q9: What is the operating temperature range for each substitute part?

A: LMV324MT/NOPB and LMV324MTX/NOPB support -40°C to 125°C (matching the original). LPV324MT/NOPB, LPV324MTX/NOPB, BD12734FVJ-E2, LMR344FVJ-E2, and LMR934FVJ-E2 support -40°C to 85°C. BU7487FV-E2 and BU7487SFV-E2 support -40°C to 105°C. MCP6474-E/ST supports -40°C to 125°C. Select based on application temperature requirements.

Q10: Are there any package footprint differences between substitute parts?

A: Most substitute parts use 14-TSSOP packages with identical footprints (0.173" width, 4.40mm). BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP packages, which have compatible but slightly different footprints. Verify PCB layout compatibility before design implementation. All parts maintain surface mount mounting type.

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