LPV358MMX Equivalent & Substitute Parts

Part Overview

The LPV358MMX is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-VSSOP surface-mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The LPV358MMX delivers rail-to-rail output capability with low input bias current and operates across a 2.7 V to 5 V supply range, making it suitable for low-power analog signal processing applications.

Substiute Parts

LPV358MMX

Texas InstrumentsIn Stock: 18497LPV358MMX Datasheet

Current PartRFQ

LPV358MMX/NOPB

Texas InstrumentsIn Stock: 23158LPV358MMX/NOPB Datasheet

DirectRFQ

BU7266FVM-TR

Rohm SemiconductorIn Stock: 5825BU7266FVM-TR Datasheet

MFR RecommendedRFQ

BU7266SFVM-TR

Rohm SemiconductorIn Stock: 6190BU7266SFVM-TR Datasheet

MFR RecommendedRFQ

BU7486FVM-TR

Rohm SemiconductorIn Stock: 4185BU7486FVM-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPV358MMX is determined by the following critical parameters: dual-circuit configuration, rail-to-rail output capability, 8-pin surface-mount packaging (8-VSSOP or 8-MSOP), and operating temperature range. The substitute parts are grouped into two categories based on functional equivalence and compliance status.

Category 1: Direct Equivalent (Active Status) LPV358MMX/NOPB is the direct successor from Texas Instruments, maintaining identical electrical specifications and packaging while transitioning to active product status and RoHS3 compliance.

Category 2: Functional Substitutes (Alternative Manufacturers) BU7266FVM-TR, BU7266SFVM-TR, and BU7486FVM-TR from Rohm Semiconductor provide dual-circuit, rail-to-rail amplification in compatible 8-MSOP packaging. These parts differ in slew rate, gain-bandwidth product, and supply current characteristics, requiring application-specific evaluation based on circuit performance requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): LPV358MMX/NOPB is the recommended substitute for the obsolete LPV358MMX. This part maintains identical electrical performance specifications while offering active product status and RoHS3 compliance. The transition from obsolete to active status ensures long-term availability and supply chain continuity. Both parts share the same base product number (LPV358) and are pin-compatible in 8-VSSOP packaging.

For Alternative Substitution (Application-Dependent): Rohm Semiconductor parts (BU7266FVM-TR, BU7266SFVM-TR, BU7486FVM-TR) provide functional alternatives with dual-circuit, rail-to-rail architecture in compatible 8-MSOP packaging. Selection among these alternatives depends on specific circuit requirements:

BU7266FVM-TR and BU7266SFVM-TR are suitable for ultra-low-power applications, offering 700 nA supply current compared to the LPV358MMX's 15 µA. The BU7266SFVM-TR extends the operating temperature range to 105°C. However, these parts exhibit significantly lower slew rate (0.0024 V/µs) and gain-bandwidth product (4 kHz), restricting use to low-frequency signal conditioning.

BU7486FVM-TR accommodates high-speed applications with 10 V/µs slew rate and 10 MHz gain-bandwidth product, but requires minimum 3 V supply and draws 6 mA supply current, making it unsuitable for 2.7 V minimum supply designs.

All substitute parts carry RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can LPV358MMX/NOPB be used as a direct replacement for LPV358MMX? A: Yes. LPV358MMX/NOPB is the direct equivalent with identical electrical specifications, pin configuration, and 8-VSSOP packaging. The primary differences are active product status and RoHS3 compliance. No circuit modifications are required.

Q: What are the key differences between the Texas Instruments LPV358 series and Rohm BU7266/BU7486 alternatives? A: The LPV358MMX and LPV358MMX/NOPB are general-purpose bipolar amplifiers. The Rohm parts are CMOS-based, resulting in significantly lower input bias current (1 pA vs. 2 nA) and lower supply current. However, BU7266 variants have reduced slew rate and bandwidth, while BU7486 has higher supply current and higher minimum supply voltage. Selection depends on application bandwidth and power budget requirements.

Q: Are all substitute parts compatible with the original 8-VSSOP package footprint? A: LPV358MMX/NOPB uses 8-VSSOP packaging identical to the original. Rohm parts (BU7266FVM-TR, BU7266SFVM-TR, BU7486FVM-TR) use 8-MSOP packaging with slightly different dimensions (0.110" vs. 0.118" width). PCB layout verification is required before substitution with Rohm parts, though both package types are 8-pin surface-mount configurations suitable for standard reflow assembly.

Q: What is the minimum supply voltage for each substitute part? A: LPV358MMX and LPV358MMX/NOPB require minimum 2.7 V. BU7266FVM-TR and BU7266SFVM-TR operate at minimum 1.8 V, enabling ultra-low-voltage applications. BU7486FVM-TR requires minimum 3 V supply. Verify circuit supply voltage compatibility before selection.

Q: Which substitute part is recommended for extended temperature range applications? A: BU7266SFVM-TR and BU7486FVM-TR both support -40°C to 105°C operating range, compared to -40°C to 85°C for the LPV358MMX series. For applications requiring extended high-temperature operation, these Rohm parts provide additional thermal margin.

Q: Are there compliance or regulatory differences between the substitute parts? A: All substitute parts (LPV358MMX/NOPB, BU7266FVM-TR, BU7266SFVM-TR, BU7486FVM-TR) are RoHS3 compliant and REACH unaffected. The original LPV358MMX is RoHS non-compliant. For designs requiring regulatory compliance, use only the active substitute parts listed.