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LPV358M Equivalent & Substitute Parts
Part Overview
The LPV358M is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-SOIC surface-mount package with rail-to-rail output capability. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The LPV358M operates across a 2.7 V to 5 V supply range with low input bias current and is suitable for low-power analog signal processing applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 0.1 | V/µs |
| Gain Bandwidth Product | 152 | kHz |
| Current - Input Bias | 2 | nA |
| Voltage - Input Offset | 1.5 | mV |
| Current - Supply (x2 Channels) | 15 | µA |
| Current - Output / Channel | 16 | mA |
| Voltage - Supply Span (Min) | 2.7 | V |
| Voltage - Supply Span (Max) | 5 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | RoHS non-compliant | — |
Substitute Part Grouping Explanation
Substitution of the LPV358M is determined by the following critical parameters: dual-circuit configuration, general-purpose amplifier topology, rail-to-rail output capability, 8-SOIC package format, and supply voltage range compatibility (2.7 V to 5 V minimum). Substitute parts are grouped into two categories based on electrical performance alignment:
Category 1: Direct Functional Equivalents — Parts maintaining identical or near-identical electrical specifications within the LPV358M performance envelope, including slew rate, gain-bandwidth product, input bias current, and output current capability. These parts are pin-compatible and package-compatible with the LPV358M.
Category 2: Enhanced Performance Alternatives — Parts with superior electrical characteristics (higher slew rate, increased gain-bandwidth product, extended temperature range, or improved supply voltage span) that provide functional substitution with enhanced capabilities. These parts maintain package compatibility and dual-circuit configuration but operate at higher performance levels.
The following parameters determine substitution eligibility:
- Number of Circuits: 2 (mandatory)
- Output Type: Rail-to-Rail (mandatory)
- Package / Case: 8-SOIC or equivalent 8-pin surface-mount (mandatory)
- Voltage - Supply Span (Min): ≤ 2.7 V (mandatory)
- Voltage - Supply Span (Max): ≥ 5 V (mandatory)
- Mounting Type: Surface Mount (mandatory)
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (kHz) | Input Bias (nA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| LPV358M | Texas Instruments | General Purpose | 0.1 | 152 | 2 | 2.7 | 5 | -40 to 85 | Obsolete | Non-compliant |
| LPV358M/NOPB | Texas Instruments | General Purpose | 0.1 | 152 | 2 | 2.7 | 5 | -40 to 85 | Active | ROHS3 Compliant |
| LMV358ID | Texas Instruments | General Purpose | 1 | 1000 | 15 | 2.7 | 5.5 | -40 to 125 | Last Time Buy | ROHS3 Compliant |
| LMV358IDRG4 | Texas Instruments | General Purpose | 1 | 1000 | 15 | 2.7 | 5.5 | -40 to 125 | Discontinued at DiGi Electronics | ROHS3 Compliant |
| LMV358QDR | Texas Instruments | General Purpose | 1 | 1000 | 15 | 2.7 | 5.5 | -40 to 125 | Active | ROHS3 Compliant |
| LMV358LIDT | STMicroelectronics | General Purpose | 0.7 | 1300 | 27 | 2.7 | 5.5 | -40 to 125 | Active | ROHS3 Compliant |
| LMR932F-GE2 | Rohm Semiconductor | General Purpose | 0.35 | 1400 | 5 | 1.8 | 5 | -40 to 85 | Active | ROHS3 Compliant |
| BU7266F-E2 | Rohm Semiconductor | CMOS | 0.0024 | 4 | 0.001 | 1.8 | 5.5 | -40 to 85 | Active | ROHS3 Compliant |
| BU7266SF-E2 | Rohm Semiconductor | CMOS | 0.0024 | 4 | 0.001 | 1.8 | 5.5 | -40 to 105 | Active | ROHS3 Compliant |
| BU7486F-E2 | Rohm Semiconductor | CMOS | 10 | 10000 | 0.001 | 3 | 5.5 | -40 to 105 | Active | ROHS3 Compliant |
| LMV358IDR | UMW | Voltage Feedback | 1 | 1000 | 0.01 | 2.1 | 5.5 | -25 to 85 | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: LPV358M/NOPB
The LPV358M/NOPB is the direct equivalent of the obsolete LPV358M, maintaining identical electrical specifications and package format. This part is manufactured by Texas Instruments, carries Active product status, and is ROHS3 compliant. The LPV358M/NOPB is supplied in Tube packaging and provides the most direct substitution path with no design modifications required.
Secondary Recommendation: LMV358QDR
The LMV358QDR is a Texas Instruments general-purpose dual operational amplifier in 8-SOIC package with Active product status and ROHS3 compliance. This part offers enhanced performance characteristics including 10× higher slew rate (1 V/µs versus 0.1 V/µs), 6.6× higher gain-bandwidth product (1 MHz versus 152 kHz), and extended operating temperature range (-40°C to 125°C). The LMV358QDR is suitable for applications requiring improved dynamic response while maintaining supply voltage compatibility (2.7 V to 5.5 V).
Tertiary Recommendation: LMV358LIDT
The LMV358LIDT is manufactured by STMicroelectronics and maintains Active product status with ROHS3 compliance. This part provides intermediate performance between the LPV358M and higher-performance alternatives, with 7× higher slew rate (0.7 V/µs) and 8.6× higher gain-bandwidth product (1.3 MHz). The extended temperature range (-40°C to 125°C) and supply voltage span (2.7 V to 5.5 V) support broader application requirements.
Alternative for Ultra-Low Power Applications: BU7266F-E2 or BU7266SF-E2
For applications prioritizing minimal power consumption, the Rohm Semiconductor BU7266F-E2 and BU7266SF-E2 CMOS amplifiers offer 21.4× lower supply current (700 nA versus 15 µA) and 2000× lower input bias current (1 pA versus 2 nA). These parts are suitable only for applications with relaxed bandwidth requirements (4 kHz gain-bandwidth product) and are not recommended for general-purpose signal processing requiring higher frequency response.
Alternative for High-Speed Applications: BU7486F-E2
The Rohm Semiconductor BU7486F-E2 provides 100× higher slew rate (10 V/µs) and 65.8× higher gain-bandwidth product (10 MHz) compared to the LPV358M. This part is suitable for applications requiring fast transient response and high-frequency signal processing. Minimum supply voltage is 3 V, which may limit use in lower-voltage systems.
All recommended substitutes maintain the mandatory dual-circuit configuration, rail-to-rail output capability, and 8-pin surface-mount package format required for direct substitution.
Frequently Asked Questions (FAQ)
Q1: Can LPV358M/NOPB be used as a direct replacement for LPV358M?
Yes. The LPV358M/NOPB is electrically and mechanically identical to the LPV358M, with identical pin configuration, package dimensions (8-SOIC, 0.154" width, 3.90mm), and electrical specifications. The primary difference is product status (Active versus Obsolete) and RoHS compliance (ROHS3 Compliant versus non-compliant). No circuit modifications are required.
Q2: What is the key difference between LPV358M and LMV358QDR?
The LMV358QDR offers enhanced performance: 10× higher slew rate (1 V/µs versus 0.1 V/µs), 6.6× higher gain-bandwidth product (1 MHz versus 152 kHz), and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Both parts maintain identical package format (8-SOIC) and supply voltage compatibility (2.7 V minimum). The LMV358QDR is suitable for applications requiring faster signal processing.
Q3: Are the Rohm Semiconductor BU7266 and BU7486 series compatible with LPV358M designs?
The BU7266F-E2 and BU7266SF-E2 are package-compatible (8-SOIC) but have significantly reduced bandwidth (4 kHz versus 152 kHz) and are intended for ultra-low-power applications only. The BU7486F-E2 is package-compatible with enhanced performance but requires minimum 3 V supply voltage. Both Rohm parts are suitable only for specific application requirements and are not general-purpose replacements.
Q4: What is the significance of the 8-SOIC package specification?
The 8-SOIC (Small Outline Integrated Circuit) package with 0.154" width and 3.90mm body width is the physical and electrical interface standard for this device family. All substitute parts must maintain this package specification to ensure PCB footprint compatibility, pin assignment alignment, and thermal characteristics. Package variations (such as 14-SOP) indicate different pinout configurations and are not compatible.
Q5: Why is RoHS compliance important for LPV358M substitution?
The original LPV358M is RoHS non-compliant, indicating it may contain lead or other restricted substances. Modern manufacturing standards and regulatory requirements (particularly in EU markets) mandate ROHS3 compliance. All recommended substitutes are ROHS3 compliant, ensuring compatibility with current procurement and environmental regulations.
Q6: Can LMV358IDR (UMW manufacturer) be used instead of Texas Instruments parts?
The LMV358IDR is manufactured by UMW and maintains functional compatibility with the LPV358M in terms of package (8-SOIC), dual-circuit configuration, and rail-to-rail output. However, the device package specification differs (14-SOP versus 8-SOIC), indicating a different pinout configuration. This part is not pin-compatible and requires circuit redesign. Verification of pinout compatibility is mandatory before selection.
Q7: What supply voltage range must substitute parts support?
The LPV358M operates across 2.7 V to 5 V supply range. All substitute parts must support a minimum supply voltage of 2.7 V or lower and maximum supply voltage of 5 V or higher to ensure compatibility with existing power supply designs. Parts with supply ranges of 2.7 V to 5.5 V or 1.8 V to 5.5 V are acceptable; parts with minimum supply voltage above 2.7 V or maximum below 5 V are not suitable.
Q8: How does input bias current affect substitution decisions?
The LPV358M specifies 2 nA input bias current. Substitute parts with higher input bias current (such as LMV358ID at 15 nA or LMV358LIDT at 27 nA) may introduce increased input offset voltage drift and reduced input impedance in high-impedance signal paths. For applications sensitive to input bias current, the LPV358M/NOPB or BU7266 series (1 pA) are preferred. For general-purpose applications, input bias current differences are typically acceptable.
Q9: What is the significance of "Last Time Buy" and "Discontinued at DiGi Electronics" product status?
"Last Time Buy" status (LMV358ID) indicates the manufacturer has announced end-of-life with a final purchase window. "Discontinued at DiGi Electronics" status (LMV358IDRG4) indicates the distributor has ceased stocking but the part may remain available from other sources or the manufacturer. Both statuses indicate limited future availability. Parts with "Active" status are recommended for new designs to ensure long-term supply continuity.
Q10: Can multiple substitute parts be used interchangeably in the same design?
No. Each substitute part has distinct electrical characteristics (slew rate, gain-bandwidth product, input bias current, supply current). Interchanging parts within a design may alter circuit performance, frequency response, and power consumption. Once a substitute part is selected and validated, it should be maintained throughout production. Design changes requiring different electrical characteristics require full circuit re-evaluation and testing.
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