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LMV934IPWRG4 Equivalent & Substitute Parts
Part Overview
The LMV934IPWRG4 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 device is classified as obsolete product status, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.
The LMV934IPWRG4 operates across a supply voltage range of 1.8V to 5V with low power consumption of 116µA across all four channels. Its primary application domain includes low-power analog signal conditioning, filtering, and general-purpose amplification in battery-powered and portable electronic systems.
Due to its obsolete status, active substitute parts with compatible electrical and mechanical characteristics are required for new designs and production continuity.
Substiute Parts
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 (4 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-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the LMV934IPWRG4 is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Amplifier Type: General Purpose
- Number of Circuits: 4 (quad configuration)
- Output Type: Rail-to-Rail
- Package / Case: 14-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
Secondary Compatibility Parameters:
- Voltage - Supply Span (Min): 1.8V minimum
- Voltage - Supply Span (Max): 5V or greater
- Operating Temperature: -40°C to 125°C or compatible range
- Current - Supply: Low power operation (under 300µA for 4 channels preferred)
- Current - Output / Channel: 90mA or greater
Substitute parts are grouped into two categories based on electrical performance alignment:
Category A - Direct Electrical Equivalents: Parts with slew rate and gain bandwidth product within ±30% of the LMV934IPWRG4 specification (0.42V/µs slew rate, 1.5MHz GBW).
Category B - Enhanced Performance Alternatives: Parts with superior slew rate and gain bandwidth product, suitable for applications requiring higher bandwidth while maintaining quad general-purpose amplifier functionality and 14-TSSOP packaging.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|
| LMV934IPWRG4 | Texas Instruments | Obsolete | General Purpose | 0.42 | 1.5 | 1.8 | 5 | -40 to 125 | 14-TSSOP |
| LMV934MT/NOPB | National Semiconductor | Active | General Purpose | 0.42 | 1.5 | 1.8 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV934MTX/NOPB | National Semiconductor | Active | General Purpose | 0.42 | 1.5 | 1.8 | 5.5 | -40 to 125 | 14-TSSOP |
| AD8648ARUZ | Analog Devices Inc. | Active | General Purpose | 11 | 24 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| AD8648ARUZ-REEL | Analog Devices Inc. | Active | General Purpose | 11 | 24 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| BD12734FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 0.4 | 1 | 1.8 | 5 | -40 to 85 | 14-TSSOP |
| BU7487FV-E2 | Rohm Semiconductor | Active | CMOS | 10 | 10 | 3 | 5.5 | -40 to 105 | 14-LSSOP |
| BU7487SFV-E2 | Rohm Semiconductor | Active | CMOS | 10 | 10 | 3 | 5.5 | -40 to 105 | 14-LSSOP |
| LMR344FVJ-E2 | Rohm Semiconductor | Active | CMOS | 1 | 2 | 2.7 | 5.5 | -40 to 85 | 14-TSSOP |
| LMR934FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 0.35 | 1.4 | 1.8 | 5 | -40 to 85 | 14-TSSOP |
| LMV324IPT | STMicroelectronics | Active | General Purpose | 0.45 | 1.3 | 2.7 | 6 | -40 to 125 | 14-TSSOP |
Engineering Selection Recommendations
Direct Substitutes (Highest Compatibility):
The LMV934MT/NOPB and LMV934MTX/NOPB from National Semiconductor are direct electrical equivalents to the LMV934IPWRG4. Both parts maintain identical slew rate (0.42V/µs) and gain bandwidth product (1.5MHz) specifications. The LMV934MTX/NOPB variant offers the highest inventory availability (17,700 pieces) and is qualified to AEC-Q100 automotive standards with active product status. The extended maximum supply voltage (5.5V versus 5V) provides additional design margin. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications.
Compatible General Purpose Alternatives:
The LMV324IPT from STMicroelectronics provides general purpose quad amplifier functionality in 14-TSSOP packaging with active status and extensive inventory (35,890 pieces). Operating parameters remain within acceptable tolerance: slew rate of 0.45V/µs (7% higher), gain bandwidth product of 1.3MHz (13% lower), and extended supply voltage range (2.7V to 6V). Operating temperature range matches the original specification (-40°C to 125°C). This part is suitable for applications where the original 1.8V minimum supply voltage is not required.
The LMR934FVJ-E2 from Rohm Semiconductor offers general purpose quad amplifier configuration in 14-TSSOP packaging with slew rate of 0.35V/µs and gain bandwidth product of 1.4MHz. Supply voltage range (1.8V to 5V) and input bias current (5nA) align closely with the original specification. Operating temperature range is -40°C to 85°C. This part is suitable for applications not requiring the full 125°C upper temperature limit.
Enhanced Performance Alternatives:
The AD8648ARUZ and AD8648ARUZ-REEL from Analog Devices Inc. provide significantly enhanced performance with slew rate of 11V/µs and gain bandwidth product of 24MHz. These parts are suitable for applications requiring higher bandwidth and faster transient response. Minimum supply voltage is 2.7V (higher than the original 1.8V specification). Both variants are ROHS3 compliant with active product status and extensive inventory availability.
Compliance and Certification:
All recommended substitute parts maintain ROHS3 compliance and carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications as the original LMV934IPWRG4. The LMV934MTX/NOPB variant includes AEC-Q100 automotive qualification, suitable for automotive and industrial applications requiring enhanced reliability standards.
Frequently Asked Questions (FAQ)
Q: Can the LMV934MTX/NOPB directly replace the LMV934IPWRG4 in existing designs?
A: Yes. The LMV934MTX/NOPB maintains identical electrical specifications for slew rate (0.42V/µs) and gain bandwidth product (1.5MHz). Both parts use the 14-TSSOP package with identical pinout and mechanical dimensions (0.173", 4.40mm width). The extended maximum supply voltage (5.5V versus 5V) provides additional design margin. Packaging format differs (tape & reel versus bulk), but electrical performance and pin compatibility are equivalent.
Q: What is the difference between LMV934MT/NOPB and LMV934MTX/NOPB?
A: Both parts are electrically identical with matching slew rate and gain bandwidth product specifications. The primary differences are packaging format and inventory availability. The LMV934MTX/NOPB offers significantly higher inventory (17,700 pieces versus 2,049 pieces) and includes AEC-Q100 automotive qualification. Both are active products from National Semiconductor with ROHS3 compliance.
Q: Can I use the AD8648ARUZ as a substitute if my application requires higher bandwidth?
A: Yes, if your circuit design can accommodate the enhanced performance characteristics. The AD8648ARUZ provides slew rate of 11V/µs (26× faster) and gain bandwidth product of 24MHz (16× higher) compared to the LMV934IPWRG4. However, the minimum supply voltage is 2.7V (higher than the original 1.8V). Verify that your power supply design meets this requirement. The higher performance may introduce increased noise and power consumption (1.5mA versus 116µA for four channels) in your application.
Q: Are there package compatibility issues with any substitute parts?
A: Most substitute parts use the 14-TSSOP package with identical mechanical dimensions. However, the BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP packaging (14-SSOP-B variant), which has different mechanical specifications. Verify PCB footprint compatibility before selecting these alternatives. All other recommended substitutes use standard 14-TSSOP packaging compatible with the original LMV934IPWRG4 footprint.
Q: What is the minimum supply voltage requirement for each substitute?
A: The LMV934IPWRG4 operates at 1.8V minimum. Direct equivalents (LMV934MT/NOPB, LMV934MTX/NOPB) maintain this 1.8V minimum. The LMR934FVJ-E2 also supports 1.8V minimum. The LMV324IPT requires 2.7V minimum. The AD8648ARUZ variants require 2.7V minimum. The BU7487 series requires 3V minimum. Select substitutes based on your circuit's minimum supply voltage requirement.
Q: Which substitute offers the best inventory availability?
A: The LMV324IPT from STMicroelectronics provides the highest inventory availability with 35,890 pieces in stock. The LMV934MTX/NOPB from National Semiconductor offers the second-highest availability with 17,700 pieces. Both parts are active products with established supply chains suitable for production requirements.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts listed in this document maintain ROHS3 compliance status, matching the environmental compliance of the original LMV934IPWRG4. All parts carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications for export and tariff purposes.
Q: What is the operating temperature range difference between substitutes?
A: The LMV934IPWRG4 operates from -40°C to 125°C. Direct equivalents (LMV934MT/NOPB, LMV934MTX/NOPB) and the LMV324IPT maintain this full range. The LMR934FVJ-E2, BD12734FVJ-E2, and BU7487 series are limited to -40°C to 85°C or -40°C to 105°C. Verify your application's temperature requirements before selecting a substitute with a reduced upper temperature limit.
Q: Can I use CMOS amplifiers (BU7487, LMR344) as substitutes for the general purpose LMV934IPWRG4?
A: CMOS amplifiers (BU7487FV-E2, BU7487SFV-E2, LMR344FVJ-E2) offer different electrical characteristics including extremely low input bias current (1pA) and different slew rate and bandwidth specifications. These parts are functionally compatible as quad rail-to-rail amplifiers in 14-TSSOP packaging but exhibit different performance profiles. Use CMOS substitutes only if your circuit design has been verified to accommodate their specific electrical characteristics, particularly input impedance and frequency response differences.
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