LMV934IPWRE4 Equivalent & Substitute Parts

Part Overview

The LMV934IPWRE4 is a general purpose operational amplifier manufactured by Texas Instruments, configured as a quad (4-circuit) rail-to-rail output device in a 14-TSSOP surface mount package. This component is classified as obsolete product status, which necessitates identification of active equivalent and substitute parts for ongoing design requirements and procurement needs.

The LMV934IPWRE4 operates across a supply voltage range of 1.8V to 5V with low input bias current (15 nA) and moderate bandwidth characteristics (1.5 MHz gain-bandwidth product). The obsolete status of this part requires engineers to evaluate functionally equivalent alternatives that maintain electrical and mechanical compatibility within system designs.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	LMV934IPWRE4	—
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)	—
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
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LMV934IPWRE4 is determined by the following critical parameters:

Primary Compatibility Criteria:

Number of Circuits: 4 (quad configuration required)
Output Type: Rail-to-Rail (mandatory for supply voltage utilization)
Package / Case: 14-TSSOP form factor (mechanical and thermal compatibility)
Mounting Type: Surface Mount (PCB assembly compatibility)
Voltage - Supply Span: Minimum 1.8V to Maximum 5V overlap (operational envelope)
Operating Temperature: -40°C to 125°C range (thermal specification)

Secondary Performance Parameters:

Slew Rate: 0.42 V/µs (signal fidelity in time-dependent applications)
Gain Bandwidth Product: 1.5 MHz (frequency response characteristics)
Current - Input Bias: 15 nA (input impedance and signal integrity)
Voltage - Input Offset: 1 mV (DC accuracy specification)
Current - Supply: 116 µA per 4 channels (power consumption profile)
Current - Output / Channel: 100 mA (load driving capability)

Substitute parts are grouped into two categories:

Category A - Direct Functional Equivalents (National Semiconductor LMV934 Series): Parts LMV934MT/NOPB and LMV934MTX/NOPB maintain identical electrical specifications with enhanced product status (Active) and automotive qualification (AEC-Q100). These parts satisfy all primary and secondary compatibility criteria with maximum supply voltage extended to 5.5V.

Category B - Enhanced Performance Alternatives: Parts including AD8648ARUZ, BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2, LMR934FVJ-E2, and MCP6424-E/ST provide functional substitution with trade-offs in performance parameters. These alternatives maintain 14-TSSOP packaging and rail-to-rail output configuration but exhibit variations in slew rate, bandwidth, input bias current, and supply current characteristics.

Parameter Comparison

Parameter	LMV934IPWRE4	LMV934MT/NOPB	LMV934MTX/NOPB	AD8648ARUZ	AD8648ARUZ-REEL	BD12734FVJ-E2	BU7487FV-E2	BU7487SFV-E2	LMR344FVJ-E2	LMR934FVJ-E2	MCP6424-E/ST
Manufacturer	Texas Instruments	National Semiconductor	National Semiconductor	Analog Devices Inc.	Analog Devices Inc.	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Microchip Technology
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
Slew Rate (V/µs)	0.42	0.42	0.42	11	11	0.4	10	10	1	0.35	0.05
Gain Bandwidth Product (MHz)	1.5	1.5	1.5	24	24	1	10	10	2	1.4	0.09
Current - Input Bias (nA)	15	14	14	0.0003	0.0003	50	0.001	0.001	0.001	5	0.001
Voltage - Input Offset (mV)	1	1	1	0.6	0.6	1	1	1	0.25	1	1
Current - Supply (µA)	116	116	116	1500	1500	1200	6000	6000	400	250	4.4
Current - Output / Channel (mA)	100	100	100	120	120	12	12	12	113	90	22
Voltage - Supply Span Min (V)	1.8	1.8	1.8	2.7	2.7	1.8	3	3	2.7	1.8	1.8
Voltage - Supply Span Max (V)	5	5.5	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 125	-40 to 125	-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

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Highest Compatibility):

LMV934MT/NOPB and LMV934MTX/NOPB are the primary recommended substitutes. Both parts maintain identical electrical specifications to the LMV934IPWRE4 across all critical parameters: 4-circuit configuration, rail-to-rail output, 14-TSSOP packaging, 0.42 V/µs slew rate, 1.5 MHz bandwidth, and 1.8V to 5V supply range. These parts carry Active product status, ensuring long-term availability and supply chain stability. LMV934MTX/NOPB offers superior inventory availability (17,700 units) compared to LMV934MT/NOPB (2,049 units). Both parts are AEC-Q100 qualified for automotive applications, providing enhanced reliability documentation.

Tier 2 - Performance-Enhanced Alternatives (Conditional Substitution):

AD8648ARUZ and AD8648ARUZ-REEL provide significantly enhanced performance characteristics with 11 V/µs slew rate and 24 MHz bandwidth, suitable for applications requiring higher frequency response. However, these parts exhibit substantially higher supply current (1.5 mA vs. 116 µA) and require minimum 2.7V supply voltage. Substitution is appropriate only when system power budget accommodates increased consumption and minimum supply voltage requirement is satisfied.

Tier 3 - Low-Power Alternatives (Power-Constrained Applications):

MCP6424-E/ST delivers ultra-low supply current (4.4 µA) with extended supply range (1.8V to 5.5V), making it suitable for battery-powered or energy-harvesting applications. Trade-offs include significantly reduced slew rate (0.05 V/µs) and bandwidth (90 kHz). Substitution is appropriate only when application bandwidth requirements are below 90 kHz and power consumption is the primary design constraint.

Tier 4 - Rohm Semiconductor Alternatives (Regional Availability):

LMR934FVJ-E2, LMR344FVJ-E2, BD12734FVJ-E2, BU7487FV-E2, and BU7487SFV-E2 provide regional alternatives with varying performance trade-offs. LMR934FVJ-E2 maintains closest electrical similarity to the original part with 0.35 V/µs slew rate and 1.4 MHz bandwidth. Operating temperature range is reduced to -40°C to 85°C for most Rohm alternatives, limiting suitability for extended temperature applications.

Compliance and Certification Considerations:

All recommended substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly processes. Parts designated with AEC-Q100 qualification (LMV934MT/NOPB and LMV934MTX/NOPB) provide enhanced reliability documentation suitable for automotive and mission-critical applications.

Frequently Asked Questions (FAQ)

Q1: Can LMV934MTX/NOPB directly replace LMV934IPWRE4 without circuit modification?

A: Yes. LMV934MTX/NOPB maintains identical electrical specifications across all critical parameters: 4-circuit configuration, rail-to-rail output, 14-TSSOP packaging, 0.42 V/µs slew rate, 1.5 MHz gain-bandwidth product, and 1.8V to 5V supply range. The extended maximum supply voltage (5.5V vs. 5V) provides additional operational margin. No circuit modifications are required for direct substitution.

Q2: What is the primary difference between LMV934MT/NOPB and LMV934MTX/NOPB?

A: Both parts are electrically identical. The primary difference is packaging designation and inventory availability. LMV934MTX/NOPB is available in significantly higher quantities (17,700 units) compared to LMV934MT/NOPB (2,049 units), making it the preferred choice for production volume requirements.

Q3: Can AD8648ARUZ be used as a drop-in replacement for LMV934IPWRE4?

A: AD8648ARUZ is mechanically compatible (14-TSSOP package) but not electrically equivalent. The AD8648ARUZ exhibits 26x higher slew rate (11 V/µs vs. 0.42 V/µs), 16x higher bandwidth (24 MHz vs. 1.5 MHz), and 13x higher supply current (1.5 mA vs. 116 µA). Substitution is appropriate only when application requirements demand enhanced frequency response and system power budget accommodates increased consumption. Minimum supply voltage requirement increases to 2.7V.

Q4: Is MCP6424-E/ST suitable for applications requiring 1.5 MHz bandwidth?

A: No. MCP6424-E/ST provides only 90 kHz bandwidth, which is 16.7 times lower than the LMV934IPWRE4 specification. This part is suitable only for DC and low-frequency applications (below 90 kHz). Substitution is appropriate exclusively for power-constrained applications where bandwidth requirements are fundamentally below 90 kHz.

Q5: What are the thermal operating range limitations when substituting with Rohm Semiconductor alternatives?

A: Most Rohm alternatives (LMR934FVJ-E2, LMR344FVJ-E2, BD12734FVJ-E2, BU7487FV-E2, BU7487SFV-E2) operate to maximum 85°C or 105°C, compared to the original LMV934IPWRE4 specification of 125°C. Applications requiring operation at temperatures above 85°C must use LMV934MT/NOPB, LMV934MTX/NOPB, AD8648ARUZ, or MCP6424-E/ST, which all support the full -40°C to 125°C range.

Q6: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification. All parts also maintain MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard surface mount assembly processes without special handling requirements.

Q7: Which substitute part offers the best inventory availability?

A: LMV934MTX/NOPB provides the highest inventory availability at 17,700 units in stock. This part maintains complete electrical equivalence to the LMV934IPWRE4 and is the recommended primary substitute for production volume requirements.

Q8: Can substitute parts be mixed within a single PCB assembly?

A: Yes, provided all parts are selected from the same substitution tier and application requirements are satisfied by the lowest-performance part in the mix. Mixing parts from different tiers (e.g., LMV934MTX/NOPB with MCP6424-E/ST) is not recommended due to significant performance differences that may create circuit behavior inconsistencies.

Q9: What is the significance of AEC-Q100 qualification on LMV934MT/NOPB and LMV934MTX/NOPB?

A: AEC-Q100 qualification indicates the parts have undergone automotive-grade reliability testing and documentation. This certification is relevant for automotive, aerospace, and mission-critical applications requiring enhanced reliability assurance. Non-automotive applications do not require this qualification.

Q10: How does the 14-LSSOP package of BU7487FV-E2 and BU7487SFV-E2 differ from the 14-TSSOP package of LMV934IPWRE4?

A: Both packages are 14-pin surface mount packages with identical 0.173" (4.40mm) width. The LSSOP designation indicates a slightly different lead configuration (shrink small outline package) compared to TSSOP (thin shrink small outline package). PCB footprints are similar but not identical. Verification of PCB layout compatibility is required before substitution.

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