Request Quote
(Ships tomorrow)
LMV344IPWRG4 Equivalent & Substitute Parts
Part Overview
The LMV344IPWRG4 is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring four independent rail-to-rail operational amplifier circuits in a 14-TSSOP surface mount package. This device is classified as obsolete product status, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The LMV344IPWRG4 operates across a 2.5V to 5.5V supply voltage range with low input bias current and moderate bandwidth characteristics suitable for general-purpose analog signal conditioning applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | LMV344IPWRG4 | — |
| Manufacturer | Texas Instruments | — |
| Amplifier Type | CMOS | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Slew Rate | 1 | V/µs |
| Gain Bandwidth Product | 1 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 250 | µV |
| Current - Supply (x4 Channels) | 107 | µA |
| Current - Output / Channel | 113 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | 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 LMV344IPWRG4 is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Number of circuits: 4 independent amplifier channels
- Output type: Rail-to-rail configuration
- Package type: 14-TSSOP surface mount form factor
- Supply voltage range: Minimum 2.5V to maximum 5.5V overlap
- Amplifier type: CMOS technology preferred for input bias current matching
- Operating temperature range: -40°C to 125°C minimum coverage
- Mounting type: Surface mount only
Secondary Compatibility Parameters:
- Slew rate: 1 V/µs nominal
- Gain bandwidth product: 1 MHz nominal
- Input bias current: 1 pA (CMOS characteristic)
- Input offset voltage: 250 µV
- Output current per channel: 113 mA
- Supply current: 107 µA across four channels
Substitute parts are grouped into two categories: Direct Texas Instruments LMV344 series variants with identical electrical specifications but different packaging configurations, and cross-manufacturer alternatives that maintain functional equivalence within the specified parameter envelope while potentially offering enhanced performance characteristics or improved product status.
Parameter Comparison
| Parameter | LMV344IPWRG4 | LMV344IPWR | LMV344MT/NOPB | LMV344MTX/NOPB | BD12734FVJ-E2 | BU7487FV-E2 | BU7487SFV-E2 | ISL28413FVZ | LMR344FVJ-E2 | LMR934FVJ-E2 | MAX4403AUD+T |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | TI | TI | TI | TI | Rohm | Rohm | Rohm | Renesas | Rohm | Rohm | ADI/Maxim |
| Amplifier Type | CMOS | CMOS | CMOS | CMOS | General Purpose | CMOS | CMOS | General Purpose | CMOS | General Purpose | General Purpose |
| 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-LSSOP | 14-LSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP |
| Slew Rate (V/µs) | 1 | 1 | 1 | 1 | 0.4 | 10 | 10 | 1 | 1 | 0.35 | 1 |
| Gain Bandwidth Product (MHz) | 1 | 1 | 1 | 1 | 1 | 10 | 10 | 2 | 2 | 1.4 | 0.8 |
| Current - Input Bias (pA) | 1 | 1 | 0.02 | 0.02 | 50 nA | 1 | 1 | 3 | 1 | 5 nA | 0.1 |
| Voltage - Input Offset (µV) | 250 | 250 | 700 | 700 | 1000 | 1000 | 1000 | 500 | 250 | 1000 | 1000 |
| Current - Supply (µA) | 107 | 107 | 107 | 107 | 1200 | 6000 | 6000 | 90 | 400 | 250 | 410 |
| Current - Output / Channel (mA) | 113 | 113 | 113 | 113 | 12 | 12 | 12 | 22 | 113 | 90 | 30 |
| Voltage - Supply Span Min (V) | 2.5 | 2.5 | 2.7 | 2.7 | 1.8 | 3 | 3 | 1.8 | 2.7 | 1.8 | 2.5 |
| Voltage - Supply Span Max (V) | 5.5 | 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 85 | -40 to 105 | -40 to 105 | -40 to 125 | -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 Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 2 (1 Year) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Tier 1: Direct Manufacturer Equivalents (Texas Instruments LMV344 Series)
The LMV344IPWR, LMV344MT/NOPB, and LMV344MTX/NOPB represent direct functional equivalents to the obsolete LMV344IPWRG4. These parts maintain identical electrical specifications across all critical parameters including slew rate, gain bandwidth product, input bias current, and supply voltage range. The primary distinction between these three variants is packaging configuration: LMV344IPWR is supplied in Cut Tape and Digi-Reel format, LMV344MT/NOPB in Tube packaging, and LMV344MTX/NOPB in Tape & Reel format. All three variants carry Active product status, ensuring long-term availability and manufacturing support. These parts are recommended as first-choice substitutes due to identical electrical performance and ROHS3 compliance with MSL 1 rating.
Tier 2: Cross-Manufacturer CMOS Alternatives
The BU7487FV-E2 and BU7487SFV-E2 (Rohm Semiconductor) and LMR344FVJ-E2 (Rohm Semiconductor) provide CMOS amplifier solutions with four circuits in 14-pin surface mount packages. The BU7487 variants offer enhanced slew rate (10 V/µs) and gain bandwidth product (10 MHz) compared to the LMV344IPWRG4, with trade-offs in supply current (6 mA versus 107 µA) and reduced output current per channel (12 mA versus 113 mA). The LMR344FVJ-E2 maintains closer electrical alignment with 1 V/µs slew rate and 2 MHz bandwidth, though with higher supply current (400 µA). All Rohm alternatives carry Active status and ROHS3 compliance.
Tier 3: General Purpose Amplifier Alternatives
The BD12734FVJ-E2 (Rohm), ISL28413FVZ (Renesas), LMR934FVJ-E2 (Rohm), and MAX4403AUD+T (ADI/Maxim) represent general-purpose operational amplifier solutions with four circuits in 14-TSSOP packages. These alternatives maintain rail-to-rail output capability and surface mount configuration but exhibit variations in input bias current, slew rate, and supply current characteristics. The ISL28413FVZ and MAX4403AUD+T support the full -40°C to 125°C operating temperature range matching the original specification. All alternatives carry Active product status and ROHS3 compliance.
Selection Criteria Summary:
- For direct replacement with identical performance: Select LMV344IPWR, LMV344MT/NOPB, or LMV344MTX/NOPB based on required packaging format.
- For enhanced bandwidth applications: Consider BU7487FV-E2 or BU7487SFV-E2 with acceptance of increased supply current.
- For low-power applications: ISL28413FVZ offers reduced supply current (90 µA) with extended temperature range support.
- For cost optimization: Evaluate general-purpose alternatives with acceptance of modified input offset voltage and slew rate characteristics.
All recommended substitutes maintain ROHS3 compliance and MSL 1 or MSL 2 ratings suitable for standard surface mount assembly processes.
Frequently Asked Questions (FAQ)
Q1: Can LMV344IPWR be used as a direct replacement for LMV344IPWRG4?
A: Yes. The LMV344IPWR is electrically identical to the LMV344IPWRG4 across all specified parameters including slew rate, gain bandwidth product, input bias current, voltage offset, supply current, and output current. The primary difference is packaging format: LMV344IPWR is supplied in Cut Tape and Digi-Reel configuration versus the original part's unspecified packaging. Both parts are 14-TSSOP surface mount packages with identical pinout and electrical performance. LMV344IPWR carries Active product status, ensuring continued availability.
Q2: What is the difference between LMV344MT/NOPB and LMV344MTX/NOPB?
A: Both parts are electrically identical LMV344 variants with identical slew rate (1 V/µs), gain bandwidth product (1 MHz), and supply voltage range (2.7V to 5.5V minimum). The distinction is packaging format: LMV344MT/NOPB is supplied in Tube packaging, while LMV344MTX/NOPB is supplied in Tape & Reel format. Both carry Active status and ROHS3 compliance. Selection depends on assembly process requirements and inventory management preferences.
Q3: Why do BU7487FV-E2 and BU7487SFV-E2 have higher slew rate and bandwidth than LMV344IPWRG4?
A: The BU7487 series represents an enhanced performance variant with 10 V/µs slew rate and 10 MHz gain bandwidth product compared to the LMV344's 1 V/µs and 1 MHz specifications. This performance enhancement results in higher supply current consumption (6 mA versus 107 µA) and reduced output current per channel (12 mA versus 113 mA). These parts are suitable for applications requiring faster signal response, with acceptance of increased power dissipation and modified output drive capability.
Q4: Can general-purpose amplifiers like MAX4403AUD+T substitute for the CMOS LMV344IPWRG4?
A: General-purpose amplifiers can substitute for the LMV344IPWRG4 when application requirements permit tolerance of modified electrical characteristics. The MAX4403AUD+T maintains four rail-to-rail circuits in 14-TSSOP package with -40°C to 125°C operating range. However, it exhibits different input bias current (0.1 pA versus 1 pA), higher input offset voltage (1 mV versus 250 µV), and reduced gain bandwidth product (800 kHz versus 1 MHz). Substitution is valid only when these parameter variations do not compromise circuit performance.
Q5: What is the significance of MSL rating differences between substitute parts?
A: Moisture Sensitivity Level (MSL) rating indicates the maximum time a component can be exposed to ambient conditions before requiring baking prior to reflow soldering. The LMV344IPWRG4 and most substitutes carry MSL 1 (Unlimited), meaning no time restriction applies. The ISL28413FVZ carries MSL 2 (1 Year), requiring component baking if storage exceeds one year in standard humidity conditions. MSL rating affects component handling procedures and storage requirements but does not impact electrical performance or long-term reliability after assembly.
Q6: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts carry ROHS3 compliance certification, indicating conformance to Restriction of Hazardous Substances Directive requirements. This compliance is maintained across all Texas Instruments, Rohm Semiconductor, Renesas Electronics, and Analog Devices/Maxim Integrated alternatives listed. ROHS3 compliance ensures suitability for applications requiring hazardous substance restrictions and environmental compliance.
Q7: Which substitute offers the lowest supply current consumption?
A: The ISL28413FVZ (Renesas Electronics) offers the lowest supply current at 90 µA across four channels, compared to the LMV344IPWRG4's 107 µA. This represents approximately 16% reduction in quiescent current consumption. The ISL28413FVZ maintains 1 V/µs slew rate and supports the full -40°C to 125°C operating temperature range, making it suitable for battery-powered or power-constrained applications with acceptance of 2 MHz gain bandwidth product (versus 1 MHz) and 500 µV input offset voltage (versus 250 µV).
Q8: Can BU7487 variants be used in applications requiring 113 mA output current per channel?
A: No. The BU7487FV-E2 and BU7487SFV-E2 are limited to 12 mA output current per channel, compared to the LMV344IPWRG4's 113 mA specification. These parts are unsuitable for applications requiring high output drive capability. For applications requiring 113 mA output current, select LMV344IPWR, LMV344MT/NOPB, LMV344MTX/NOPB, or LMR344FVJ-E2, all of which maintain 113 mA output current per channel specification.
Q9: What is the operating temperature range limitation for Rohm LMR344FVJ-E2 and LMR934FVJ-E2?
A: Both Rohm LMR series parts are rated for -40°C to 85°C operating temperature range, compared to the LMV344IPWRG4's -40°C to 125°C specification. This represents a 40°C reduction in maximum operating temperature. These parts are unsuitable for applications requiring operation above 85°C. For full -40°C to 125°C temperature range support, select LMV344IPWR, LMV344MT/NOPB, LMV344MTX/NOPB, ISL28413FVZ, or MAX4403AUD+T.
Q10: Are there pin-compatible alternatives with different package types?
A: All recommended substitutes maintain 14-pin surface mount package configuration with identical pinout. The BU7487FV-E2 and BU7487SFV-E2 use 14-LSSOP (Low-profile Small Outline Package) versus the standard 14-TSSOP, but maintain identical pin assignments and electrical interface. Physical package dimensions differ slightly (0.173" width for both), but PCB footprint compatibility requires verification. All other substitutes use standard 14-TSSOP package with direct footprint compatibility.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts