LMV934ID Equivalent & Substitute Parts

Part Overview

The LMV934ID is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. Manufactured by Texas Instruments, this device provides rail-to-rail output capability with a 1.5 MHz gain-bandwidth product and operates across a 1.8 V to 5 V supply range. The LMV934ID is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and new project implementations. Substitute parts must maintain functional compatibility while meeting the same electrical specifications and mechanical packaging requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Slew Rate	0.42	V/µs
Gain Bandwidth Product	1.5	MHz
Current - Input Bias	15	nA
Voltage - Input Offset	1	mV
Current - Supply (x4 Channels)	116	µA
Current - Output / Channel	100	mA
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5	V
Operating Temperature	-40 to 125	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the LMV934ID are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Amplifier Type: General Purpose
Number of Circuits: 4
Output Type: Rail-to-Rail
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: -40°C to 125°C minimum
Voltage Supply Span: Minimum 1.8 V to 5 V overlap required

Secondary Compatibility Parameters:

Slew Rate: 0.42 V/µs (baseline; substitutes may vary)
Gain Bandwidth Product: 1.5 MHz (baseline; substitutes may vary)
Current - Input Bias: 15 nA (baseline; substitutes may vary)
Voltage - Input Offset: 1 mV (baseline; substitutes may vary)

Substitutes are grouped into two categories:

Category 1: Direct Texas Instruments Equivalents Parts LMV934MA/NOPB and LMV934MAX/NOPB are manufacturer-recommended equivalents with identical base product number (LMV934) and active product status. These maintain all critical electrical parameters and package specifications.

Category 2: Cross-Manufacturer Alternatives Parts from Rohm Semiconductor, onsemi, STMicroelectronics, and Microchip Technology provide functional substitution with variations in secondary parameters. These parts maintain the four-circuit general-purpose amplifier architecture, rail-to-rail output, 14-SOIC packaging, and compatible supply voltage ranges, but may differ in slew rate, bandwidth, or supply current characteristics.

Parameter Comparison

Part Number	Manufacturer	Product Status	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Supply Span Min (V)	Supply Span Max (V)	Output Current (mA)	Temp Range (°C)	Package
LMV934ID	Texas Instruments	Obsolete	0.42	1.5	15	1.8	5.0	100	-40 to 125	14-SOIC
LMV934MA/NOPB	Texas Instruments	Active	0.42	1.5	14	1.8	5.5	100	-40 to 125	14-SOIC
LMV934MAX/NOPB	Texas Instruments	Active	0.42	1.5	14	1.8	5.5	100	-40 to 125	14-SOIC
BU7487F-E2	Rohm Semiconductor	Active	10.0	10.0	0.001	3.0	5.5	12	-40 to 105	14-SOP
LMR934F-GE2	Rohm Semiconductor	Active	0.35	1.4	5	1.8	5.0	90	-40 to 85	14-SOP
LMV324AM14X	onsemi	Obsolete	1.5	1.4	1	2.7	5.5	34	-40 to 125	14-SOIC
LMV324IYDT	STMicroelectronics	Active	0.45	1.3	16	2.7	6.0	160	-40 to 125	14-SOIC
MCP6234T-E/SL	Microchip Technology	Active	0.15	0.3	0.001	1.8	6.0	23	-40 to 125	14-SOIC
MCP6424-E/SL	Microchip Technology	Active	0.05	0.09	0.001	1.8	5.5	22	-40 to 125	14-SOIC
MCP6424T-E/SL	Microchip Technology	Active	0.05	0.09	0.001	1.8	5.5	22	-40 to 125	14-SOIC
MCP6474-E/SL	Microchip Technology	Active	1.1	2.0	0.001	2.0	5.5	32	-40 to 125	14-SOIC

Engineering Selection Recommendations

Tier 1: Manufacturer-Recommended Direct Equivalents

LMV934MA/NOPB and LMV934MAX/NOPB are the primary substitutes for LMV934ID. Both are active products from Texas Instruments with identical electrical performance and package specifications. LMV934MAX/NOPB offers higher inventory availability (32,900 units) and is supplied in Cut Tape & Digi-Reel packaging, making it suitable for high-volume production. LMV934MA/NOPB is supplied in Tube packaging with 1,899 units in stock. Both parts extend the maximum supply voltage to 5.5 V compared to the original 5 V specification, providing enhanced design margin. These parts are ROHS3 compliant and carry MSL 1 rating.

Tier 2: Cross-Manufacturer Active Alternatives

LMV324IYDT (STMicroelectronics) is an active product with automotive-grade qualification (AEC-Q100) and maintains the critical four-circuit general-purpose architecture in 14-SOIC packaging. This part operates across -40°C to 125°C and supports supply voltages from 2.7 V to 6 V. The higher output current capability (160 mA per channel) and lower input offset voltage (100 µV) provide performance advantages in certain applications, though supply current is higher at 162 µA.

MCP6474-E/SL (Microchip Technology) is an active CMOS amplifier with enhanced slew rate (1.1 V/µs) and higher gain-bandwidth product (2 MHz), suitable for applications requiring faster signal processing. This part maintains 14-SOIC packaging and operates across -40°C to 125°C with supply range 2 V to 5.5 V.

Tier 3: Low-Power and Specialized Alternatives

MCP6424-E/SL and MCP6424T-E/SL (Microchip Technology) are ultra-low-power alternatives with supply current of only 4.4 µA per channel. These parts are suitable for battery-powered and energy-constrained applications. The trade-off is significantly reduced bandwidth (90 kHz) and slew rate (0.05 V/µs), limiting use to low-frequency signal conditioning.

MCP6234T-E/SL (Microchip Technology) offers moderate power consumption (20 µA) with improved bandwidth (300 kHz) compared to MCP6424 series, providing a balance between power efficiency and signal processing capability.

Tier 4: Rohm Semiconductor Options

LMR934F-GE2 (Rohm Semiconductor) maintains general-purpose amplifier architecture with slew rate of 0.35 V/µs and 1.4 MHz bandwidth. This part operates across -40°C to 85°C (reduced upper temperature limit) with supply range 1.8 V to 5 V. Higher supply current (250 µA) is a consideration for power-sensitive designs.

BU7487F-E2 (Rohm Semiconductor) is a CMOS amplifier with significantly enhanced performance: 10 V/µs slew rate and 10 MHz bandwidth. However, the minimum supply voltage is 3 V (incompatible with 1.8 V designs), and output current is limited to 12 mA per channel. This part is suitable only for applications with higher supply voltages and lower output current requirements.

Compliance and Certification

All recommended substitutes are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original LMV934ID specifications. All parts are classified as EAR99 for export control purposes and are REACH unaffected.

Frequently Asked Questions (FAQ)

Q1: Can LMV934MAX/NOPB directly replace LMV934ID without circuit modifications?

A: Yes. LMV934MAX/NOPB is a manufacturer-recommended equivalent with identical electrical specifications and 14-SOIC package. The extended maximum supply voltage (5.5 V vs. 5 V) provides additional design margin. No circuit modifications are required for direct substitution.

Q2: What is the key difference between LMV934MA/NOPB and LMV934MAX/NOPB?

A: Both parts are electrically identical. The primary difference is packaging format: LMV934MA/NOPB is supplied in Tube packaging, while LMV934MAX/NOPB is supplied in Cut Tape & Digi-Reel format. LMV934MAX/NOPB has significantly higher inventory availability (32,900 units vs. 1,899 units).

Q3: Can I use MCP6424-E/SL as a substitute for LMV934ID?

A: MCP6424-E/SL is functionally compatible in terms of package (14-SOIC), supply voltage range (1.8 V to 5.5 V), and operating temperature (-40°C to 125°C). However, the bandwidth is significantly reduced (90 kHz vs. 1.5 MHz) and slew rate is much lower (0.05 V/µs vs. 0.42 V/µs). This substitute is suitable only for low-frequency applications such as DC signal conditioning, sensor interfacing, or precision measurement circuits where bandwidth is not a limiting factor.

Q4: Is LMV324IYDT suitable for automotive applications?

A: Yes. LMV324IYDT carries AEC-Q100 automotive qualification and is rated for -40°C to 125°C operation. This part is suitable for automotive-grade designs requiring general-purpose amplification in 14-SOIC packaging.

Q5: What are the supply voltage compatibility constraints for cross-manufacturer substitutes?

A: The original LMV934ID operates from 1.8 V to 5 V. Most substitutes support this range or extend it. However, BU7487F-E2 has a minimum supply voltage of 3 V, making it incompatible with 1.8 V designs. LMR934F-GE2 maintains the 1.8 V to 5 V range. When selecting substitutes, verify that the substitute's supply voltage range encompasses your design's operating point.

Q6: Which substitute offers the lowest power consumption?

A: MCP6424-E/SL and MCP6424T-E/SL offer the lowest supply current at 4.4 µA per channel (17.6 µA total for four channels). These parts are optimized for battery-powered and ultra-low-power applications. The trade-off is significantly reduced bandwidth (90 kHz) and slew rate (0.05 V/µs).

Q7: Are all substitutes ROHS3 compliant?

A: Yes. All recommended substitutes are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original LMV934ID specifications.

Q8: What is the difference between 14-SOIC and 14-SOP packaging?

A: Both are 14-pin surface-mount packages with similar footprints. 14-SOIC (Small Outline Integrated Circuit) typically has a body width of 0.154 inches (3.90 mm), while 14-SOP (Small Outline Package) may have a body width of 0.173 inches (4.40 mm). These are mechanically compatible for most PCB designs, though verification of specific footprint requirements is recommended before substitution.

Q9: Can I substitute LMV934ID with BU7487F-E2 in a 1.8 V powered circuit?

A: No. BU7487F-E2 has a minimum supply voltage of 3 V and is not compatible with 1.8 V designs. This substitute is suitable only for applications with supply voltages of 3 V or higher.

Q10: Which substitute provides the best performance match to LMV934ID?

A: LMV934MA/NOPB and LMV934MAX/NOPB are the best performance matches, as they are manufacturer-recommended equivalents with identical electrical specifications. If these are unavailable, LMR934F-GE2 (Rohm Semiconductor) provides the closest performance match with slew rate of 0.35 V/µs and bandwidth of 1.4 MHz, though it operates at a reduced upper temperature limit of 85°C.

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