LM358AWPT Equivalent & Substitute Parts

Part Overview

The LM358AWPT is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in an 8-TSSOP surface-mount package. This dual-channel amplifier is designed for low-power applications requiring moderate bandwidth and precision input characteristics. The device operates across a wide supply voltage range of 3V to 30V and is qualified to AEC-Q100 automotive standards.

Substitute parts are necessary when the LM358AWPT becomes unavailable due to inventory constraints, end-of-life status, or when alternative packaging formats are required for manufacturing processes. The parts listed below maintain functional equivalence within the specified electrical and mechanical parameters.

Substiute Parts

LM358AWPT

STMicroelectronicsIn Stock: 1250LM358AWPT Datasheet

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LM358APW

Texas InstrumentsIn Stock: 1161LM358APW Datasheet

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LM358APWR

Texas InstrumentsIn Stock: 45163LM358APWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM358AWPT is determined by equivalence in the following critical parameters:

Mechanical Compatibility: All substitute parts must use the 8-TSSOP surface-mount package with identical 0.173" (4.40mm) width to ensure PCB footprint compatibility.

Functional Equivalence: All parts maintain dual-channel general-purpose amplifier architecture with identical output current capability (40 mA per channel) and supply voltage range (3V to 30V).

Electrical Performance: Substitute parts operate within the same temperature range (0°C to 70°C) and maintain compliance with RoHS3 and REACH standards.

Packaging Format: Substitute parts are available in different packaging formats (Tube, Cut Tape & Digi-Reel) but maintain identical component specifications for the 8-TSSOP package.

The LM358APW and LM358APWR are direct functional equivalents from Texas Instruments, sharing the same base product number (LM358) and package configuration. Differences in slew rate and gain bandwidth product represent performance variations within the LM358 family but do not preclude substitution in applications where these parameters are not critical design constraints.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: The LM358AWPT remains the recommended choice for new designs due to its Active product status and automotive-grade AEC-Q100 qualification. This part is currently in stock with 1156 units available.

Secondary Selection - LM358APWR: This Texas Instruments equivalent is the preferred substitute when LM358AWPT availability is constrained. The LM358APWR maintains Active product status with significantly higher inventory (45100 units) and is available in Cut Tape & Digi-Reel packaging. Both parts meet RoHS3 and REACH compliance requirements. The LM358APWR exhibits lower slew rate (0.3V/µs versus 0.6V/µs) and reduced gain bandwidth product (700 kHz versus 1.1 MHz), which may impact performance in high-frequency applications but is acceptable for general-purpose amplification.

Tertiary Selection - LM358APW: This Texas Instruments variant is available in Tube packaging and carries Last Time Buy status, indicating limited future availability. Selection of this part should be restricted to applications where Tube packaging is specifically required and inventory constraints on the LM358AWPT or LM358APWR are prohibitive.

Compliance Verification: All three parts maintain identical compliance certifications (RoHS3, REACH Unaffected, MSL 1) and operate within the same temperature range, ensuring regulatory equivalence across automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the LM358APW and LM358APWR be used interchangeably with the LM358AWPT?

A: Yes, within the constraints of the specified electrical parameters. All three parts share identical package geometry (8-TSSOP), supply voltage range (3V to 30V), output current capability (40 mA per channel), and operating temperature range (0°C to 70°C). The primary differences are slew rate and gain bandwidth product, which are lower in the Texas Instruments variants. Applications requiring the full 0.6V/µs slew rate or 1.1 MHz bandwidth of the LM358AWPT may not be suitable for substitution with the 0.3V/µs / 700 kHz alternatives.

Q: What is the impact of different packaging formats on component selection?

A: The LM358AWPT is supplied in Tape & Reel (TR) format, the LM358APW in Tube format, and the LM358APWR in Cut Tape & Digi-Reel format. These packaging differences affect manufacturing processes and handling but do not alter the electrical or mechanical specifications of the component itself. Selection should be based on assembly line compatibility and inventory management requirements.

Q: Why does the LM358APW show Last Time Buy status?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for this part number. While currently available, future procurement may become impossible. For new designs or long-term production requirements, the LM358APWR (Active status) or LM358AWPT (Active status) are preferred to ensure supply chain continuity.

Q: Are there differences in input bias current between these parts?

A: Yes. The LM358AWPT specifies 20 nA input bias current, while both Texas Instruments variants specify 15 nA. This 5 nA difference is negligible for most general-purpose applications but may be significant in precision instrumentation or high-impedance input circuits. Similarly, the LM358AWPT offers lower input offset voltage (1 mV) compared to the Texas Instruments parts (2 mV).

Q: Do all parts meet automotive qualification requirements?

A: The LM358AWPT carries AEC-Q100 automotive qualification. The LM358APW and LM358APWR do not list AEC-Q100 qualification in the provided specifications. For automotive applications requiring formal qualification, the LM358AWPT is the specified choice.

Q: What is the significance of the 700µA versus 500µA supply current specification?

A: The LM358AWPT specifies 700µA total supply current, while the Texas Instruments variants specify 500µA per channel (1000µA total for dual channels). The LM358AWPT's lower supply current may provide advantages in battery-powered or power-constrained applications. This parameter should be evaluated against the specific power budget of the target application.