LPV324ID Equivalent & Substitute Parts

Part Overview

The LPV324ID is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit rail-to-rail amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement.

The LPV324ID operates across a 2.7 V to 5 V supply range with low input bias current (2 nA) and minimal input offset voltage (1.5 mV). Its primary application domain includes low-power signal conditioning and general-purpose amplification in battery-powered and low-voltage systems.

Due to its obsolete status, alternative components must be evaluated to ensure design continuity and component availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	LPV324ID	—
Manufacturer	Texas Instruments	—
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
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
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LPV324ID is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Package type: 14-SOIC surface mount (0.154", 3.90mm width)
Number of circuits: 4-channel configuration
Output type: Rail-to-Rail
Supply voltage range: Minimum 2.7 V, Maximum ≥ 5 V
Operating temperature range: Minimum -40°C, Maximum ≥ 125°C
Mounting type: Surface Mount

Performance Parameters Affecting Substitution:

Slew rate (0.1 V/µs baseline)
Gain bandwidth product (237 kHz baseline)
Input bias current (2 nA baseline)
Input offset voltage (1.5 mV baseline)
Supply current per channel (28 µA baseline)
Output current per channel (72 mA baseline)

Substitute parts are grouped into two categories:

Category A - Direct Replacements (LPV324 Series): Parts maintaining identical electrical performance characteristics and operating temperature range (-40°C to 85°C or -40°C to 125°C). These include LPV324M/NOPB and LPV324MX/NOPB, which preserve the low slew rate and low supply current profile of the original device.

Category B - Functional Equivalents (Enhanced Performance): Parts providing superior performance specifications while maintaining package compatibility and supply voltage range. These include LMV324M/NOPB, LMV324MX/NOPB, MCP6484-E/SL, MCP6474-E/SL, MCP6474T-E/SL, LMR934F-GE2, LMV324AM14X, and BU7487F-E2. These devices offer higher slew rates, increased gain bandwidth products, and improved output current capabilities.

All substitute parts comply with ROHS3 and maintain MSL 1 (Unlimited) moisture sensitivity classification.

Parameter Comparison

Parameter	LPV324ID	LPV324M/NOPB	LPV324MX/NOPB	LMV324M/NOPB	LMV324MX/NOPB	MCP6484-E/SL	MCP6474-E/SL	LMR934F-GE2	LMV324AM14X	BU7487F-E2
Manufacturer	TI	TI	TI	TI	TI	Microchip	Microchip	Rohm	onsemi	Rohm
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Obsolete	Active
Number of Circuits	4	4	4	4	4	4	4	4	4	4
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	CMOS	General Purpose	General Purpose	CMOS
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
Package / Case	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.173", 4.40mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.173", 4.40mm)
Slew Rate (V/µs)	0.1	0.1	0.1	1	1	2.7	1.1	0.35	1.5	10
Gain Bandwidth Product (kHz)	237	152	152	1000	1000	4000	2000	1400	1400	10000
Current - Input Bias (nA)	2	2	2	15	15	1	1	5	1	1
Voltage - Input Offset (mV)	1.5	1.5	1.5	1.7	1.7	1.5	1.5	1	1	1
Current - Supply (µA)	28	28	28	410	410	240	100	250	100	6000
Current - Output / Channel (mA)	72	16	16	160	160	12	32	90	34	12
Voltage - Supply Span Min (V)	2.7	2.7	2.7	2.7	2.7	2.2	2	1.8	2.7	3
Voltage - Supply Span Max (V)	5	5	5	5.5	5.5	5.5	5.5	5	5.5	5.5
Operating Temperature (°C)	-40 to 125	-40 to 85	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 125	-40 to 105
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Performance Profile):

Select LPV324M/NOPB or LPV324MX/NOPB when the original LPV324ID electrical characteristics must be preserved exactly. Both parts maintain the 0.1 V/µs slew rate, 152 kHz gain bandwidth product, and 28 µA supply current per channel. The primary difference is packaging: LPV324M/NOPB is supplied in Tube packaging, while LPV324MX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format. Both are active products with ROHS3 compliance and MSL 1 rating.

Note: Operating temperature range is limited to -40°C to 85°C for both LPV324 variants, compared to the original -40°C to 125°C specification. Verify temperature requirements before selection.

For Enhanced Performance with Extended Temperature Range:

Select LMV324M/NOPB or LMV324MX/NOPB when higher slew rate (1 V/µs) and increased gain bandwidth product (1 MHz) are acceptable. These parts maintain the 2.7 V to 5.5 V supply range and -40°C to 125°C operating temperature. Supply current increases to 410 µA per channel, and output current increases to 160 mA per channel. LMV324M/NOPB is supplied in Tube packaging; LMV324MX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format. Both are active products.

For CMOS Technology with Ultra-Low Input Bias Current:

Select MCP6484-E/SL when CMOS amplifier characteristics with 1 pA input bias current are required. This Microchip part offers 2.7 V/µs slew rate, 4 MHz gain bandwidth product, and operates across 2.2 V to 5.5 V supply range at -40°C to 125°C. Supply current is 240 µA per channel. Supplied in Tube packaging. Active product status.

Select MCP6474-E/SL or MCP6474T-E/SL for CMOS technology with moderate performance (1.1 V/µs slew rate, 2 MHz gain bandwidth product). MCP6474-E/SL is supplied in Tube packaging; MCP6474T-E/SL is supplied in Tape & Reel (TR) format. Both are active products operating at -40°C to 125°C.

For Rohm Semiconductor Alternatives:

Select LMR934F-GE2 for a general-purpose amplifier with 0.35 V/µs slew rate and 1.4 MHz gain bandwidth product. This part operates across 1.8 V to 5 V supply range at -40°C to 85°C. Note: Package width is 4.40mm (0.173"), which differs from the standard 3.90mm (0.154") footprint. Supplied in Cut Tape (CT) & Digi-Reel® format. Active product status.

Select BU7487F-E2 for CMOS technology with high slew rate (10 V/µs) and 10 MHz gain bandwidth product. This part operates at -40°C to 105°C with 3 V to 5.5 V supply range. Package width is 4.40mm (0.173"). Supplied in Cut Tape (CT) & Digi-Reel® format. Active product status.

For onsemi Alternative:

Select LMV324AM14X for a general-purpose amplifier with 1.5 V/µs slew rate and 1.4 MHz gain bandwidth product. This part maintains the 14-SOIC (0.154", 3.90mm) package footprint and operates at -40°C to 125°C across 2.7 V to 5.5 V supply range. Note: Product status is obsolete. Supplied in Cut Tape (CT) & Digi-Reel® format.

Compliance and Regulatory Considerations:

All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, matching the original LPV324ID specifications. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001. No additional regulatory evaluation is required for substitution.

Frequently Asked Questions (FAQ)

Q1: Can LPV324MX/NOPB be used as a direct replacement for LPV324ID?

A: LPV324MX/NOPB is electrically compatible with LPV324ID in terms of slew rate (0.1 V/µs), gain bandwidth product (152 kHz), input bias current (2 nA), and supply voltage range (2.7 V to 5 V). However, the operating temperature range is limited to -40°C to 85°C, compared to the original -40°C to 125°C. Verify that your application does not require operation above 85°C before selecting this substitute.

Q2: What is the primary difference between LMV324M/NOPB and LPV324M/NOPB?

A: Both parts are Texas Instruments 4-channel rail-to-rail amplifiers in 14-SOIC packaging. The LMV324 series offers enhanced performance with 1 V/µs slew rate and 1 MHz gain bandwidth product, compared to the LPV324 series at 0.1 V/µs and 152 kHz. The LMV324 also supports extended supply voltage (up to 5.5 V) and maintains the full -40°C to 125°C operating temperature range. Supply current increases from 28 µA to 410 µA per channel.

Q3: Are MCP6484-E/SL and MCP6474-E/SL interchangeable?

A: Both are Microchip CMOS 4-channel amplifiers in 14-SOIC packaging with 1 pA input bias current. MCP6484-E/SL offers higher performance (2.7 V/µs slew rate, 4 MHz gain bandwidth product, 240 µA supply current) compared to MCP6474-E/SL (1.1 V/µs slew rate, 2 MHz gain bandwidth product, 100 µA supply current). Selection depends on required bandwidth and power budget. Both operate at -40°C to 125°C.

Q4: Why do LMR934F-GE2 and BU7487F-E2 have different package widths?

A: LMR934F-GE2 and BU7487F-E2 are both specified as 14-SOP packages with 0.173" (4.40mm) width, compared to the standard 14-SOIC at 0.154" (3.90mm) width. This represents a different package variant. Verify PCB layout compatibility before selecting these parts, as they may not fit existing 14-SOIC footprints without layout modification.

Q5: What is the significance of product status (Active vs. Obsolete)?

A: Active products are in current production with guaranteed long-term availability and supply chain support. Obsolete products are no longer manufactured and may have limited inventory. LPV324ID and LMV324AM14X are obsolete; all other listed substitutes are active. For new designs, prioritize active products to ensure component availability throughout the product lifecycle.

Q6: How does input bias current affect circuit performance?

A: Input bias current determines the DC offset voltage developed across high-impedance source resistances. The LPV324ID specifies 2 nA input bias current. CMOS alternatives (MCP6484-E/SL, MCP6474-E/SL, BU7487F-E2) offer 1 pA input bias current, reducing offset errors by approximately 2000x in high-impedance applications. General-purpose alternatives (LMV324, LMR934F-GE2, LMV324AM14X) specify 1-15 nA input bias current.

Q7: What packaging options are available for each substitute?

A: Tube packaging is suitable for manual assembly and small-volume production. Cut Tape (CT) & Digi-Reel® packaging is optimized for automated pick-and-place assembly. Tape & Reel (TR) packaging is standard for high-volume manufacturing. Verify your assembly process requirements before selecting packaging format.

Q8: Can I use a substitute with higher supply current in a battery-powered application?

A: Higher supply current directly reduces battery runtime. The LPV324ID draws 28 µA per channel (112 µA total for 4 channels). LMV324 series draws 410 µA per channel (1.64 mA total), approximately 14.6x higher. For battery-powered applications, maintain supply current specifications close to the original design, or recalculate battery capacity requirements.

Q9: What is the significance of slew rate in amplifier selection?

A: Slew rate determines the maximum rate of output voltage change. The LPV324ID specifies 0.1 V/µs, limiting bandwidth in high-frequency applications. Higher slew rates (1-10 V/µs) support faster signal transitions and higher bandwidth. Select slew rate based on signal frequency content and settling time requirements.

Q10: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this document are ROHS3 compliant and carry identical REACH status (REACH Unaffected) and ECCN classification (EAR99) as the original LPV324ID. No additional regulatory compliance evaluation is required for substitution.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message