LM158APT Equivalent & Substitute Parts

Part Overview

The LM158APT is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in an 8-TSSOP surface-mount package. This device is classified as obsolete, indicating it has been discontinued and is no longer in active production. The LM158APT is qualified to AEC-Q100 automotive standards and operates across an extended temperature range of -55°C to 125°C, making it suitable for automotive and industrial applications requiring reliability in harsh environments.

Due to its obsolete status, locating equivalent or substitute components is necessary for ongoing production, maintenance, and design continuity. Substitute parts must maintain functional compatibility while meeting the same electrical specifications and package requirements.

Substiute Parts

LM158APT

STMicroelectronicsIn Stock: 28029LM158APT Datasheet

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BA4560YFV-MGE2

Rohm SemiconductorIn Stock: 2586BA4560YFV-MGE2 Datasheet

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LM2904AVQPWRG4

Texas InstrumentsIn Stock: 1293LM2904AVQPWRG4 Datasheet

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LM2904PW

Texas InstrumentsIn Stock: 4962LM2904PW Datasheet

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LM2904PWR

Rohm SemiconductorIn Stock: 65156LM2904PWR Datasheet

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LM2904PWRG3

Texas InstrumentsIn Stock: 6711LM2904PWRG3 Datasheet

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UPC1251GR-9LG-E1-A

Renesas Electronics CorporationIn Stock: 3738UPC1251GR-9LG-E1-A Datasheet

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UPC358GR-9LG-E1-A

Renesas Electronics CorporationIn Stock: 808UPC358GR-9LG-E1-A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM158APT is determined by the following critical parameters:

Functional Compatibility Requirements:

• Dual-circuit general-purpose operational amplifier configuration
• 8-TSSOP surface-mount package with 0.173" width and 4.40mm dimensions
• Supply voltage range spanning minimum 3V to maximum 30V
• Output current capability of 40mA per channel
• Input bias current of 20nA
• Input offset voltage of 2mV
• Operating temperature range of -55°C to 125°C (automotive grade)
• AEC-Q100 automotive qualification
• ROHS3 compliance and MSL 1 rating

Substitute parts are grouped into two categories based on their deviation from these core parameters:

Category 1: Direct Functional Equivalents — Parts maintaining identical or superior electrical specifications within the specified parameter ranges, compatible with the 8-TSSOP package, and meeting automotive qualification requirements.

Category 2: Functional Alternatives — Parts with comparable dual-circuit general-purpose amplifier functionality but with variations in slew rate, gain-bandwidth product, supply current, or temperature range that may require application-level verification.

Parameter Comparison

Engineering Selection Recommendations

For Automotive Applications Requiring AEC-Q100 Qualification:

The BA4560YFV-MGE2 manufactured by Rohm Semiconductor is the primary substitute for the LM158APT in automotive applications. Both devices carry AEC-Q100 automotive qualification and maintain the required dual-circuit general-purpose amplifier configuration in an 8-TSSOP package. The BA4560YFV-MGE2 operates across the full 3V to 30V supply range and maintains the 40mA output current per channel. However, the BA4560YFV-MGE2 exhibits a higher slew rate (4V/µs versus 0.6V/µs) and gain-bandwidth product (4MHz versus 1.1MHz), which may affect circuit behavior in bandwidth-sensitive applications. The operating temperature range of the BA4560YFV-MGE2 extends to 105°C, which is narrower than the LM158APT's -55°C to 125°C range. The minimum supply voltage requirement is 8V, which exceeds the LM158APT's 3V minimum.

For Non-Automotive Applications with Extended Temperature Requirements:

The LM2904AVQPWRG4 from Texas Instruments provides functional compatibility with the LM158APT in the 8-TSSOP package and maintains the -40°C to 125°C operating temperature range. This device is discontinued at DiGi Electronics but remains available in inventory. The LM2904AVQPWRG4 operates across the 3V to 30V supply range and delivers 40mA output current per channel. The slew rate (0.3V/µs) and gain-bandwidth product (700kHz) are lower than the LM158APT, which may be suitable for low-frequency applications. Input bias current and offset voltage specifications are comparable.

For Active Production with Current Availability:

The UPC1251GR-9LG-E1-A from Renesas Electronics Corporation is an active product with current inventory availability. This device features a push-pull output configuration and maintains the 8-TSSOP package format with 3V to 30V supply range and 40mA output current per channel. The operating temperature range extends to 125°C. The input bias current (14nA) is lower than the LM158APT, and the input offset voltage matches at 2mV. The supply current specification (700µA) aligns with the LM158APT. Slew rate and gain-bandwidth product are not specified for this device.

For Cost-Optimized Alternatives:

The LM2904PW, LM2904PWR, and LM2904PWRG3 from Texas Instruments and Rohm Semiconductor offer lower-cost alternatives with comparable dual-circuit general-purpose amplifier functionality in the 8-TSSOP package. These devices operate across reduced supply voltage ranges (maximum 26V) and exhibit lower slew rates and gain-bandwidth products. All three maintain 40mA output current per channel and operate across -40°C to 125°C temperature ranges. These alternatives are suitable for applications where the extended -55°C lower temperature limit and higher slew rate of the LM158APT are not required.

For Legacy System Maintenance:

The UPC358GR-9LG-E1-A from Renesas Electronics Corporation is an active product classified as a standard amplifier with push-pull output. This device operates across -40°C to 85°C, which does not meet the extended temperature requirements of the LM158APT. The supply current is lower (350µA per channel), and the maximum supply voltage is 30V. This device is suitable only for applications where the reduced temperature range is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the BA4560YFV-MGE2 be used as a direct replacement for the LM158APT in automotive applications?

A: The BA4560YFV-MGE2 is functionally compatible with the LM158APT for dual-circuit general-purpose amplifier applications in the 8-TSSOP package. Both devices carry AEC-Q100 automotive qualification. However, the BA4560YFV-MGE2 has a minimum supply voltage of 8V, which exceeds the LM158APT's 3V minimum. The BA4560YFV-MGE2 also exhibits higher slew rate (4V/µs) and gain-bandwidth product (4MHz), which may alter circuit performance in bandwidth-sensitive designs. The operating temperature range of the BA4560YFV-MGE2 extends only to 105°C, which is narrower than the LM158APT's 125°C maximum. Application-level verification is required to confirm compatibility.

Q: What is the primary difference between the LM2904 variants (LM2904AVQPWRG4, LM2904PW, LM2904PWR, LM2904PWRG3)?

A: All LM2904 variants are dual-circuit general-purpose amplifiers in the 8-TSSOP package with comparable electrical specifications. The primary differences are product status, packaging format, and supply voltage maximum ratings. The LM2904AVQPWRG4 is discontinued at DiGi Electronics. The LM2904PW is packaged in tubes and is obsolete. The LM2904PWR is obsolete. The LM2904PWRG3 is in last-time-buy status and packaged in tape and reel format. The LM2904PW and LM2904PWR have a maximum supply voltage of 26V, while the LM2904AVQPWRG4 and LM2904PWRG3 support 30V. All variants operate across -40°C to 125°C and maintain 40mA output current per channel.

Q: Is the UPC1251GR-9LG-E1-A suitable for applications requiring the full -55°C to 125°C temperature range of the LM158APT?

A: The UPC1251GR-9LG-E1-A operates across -40°C to 125°C, which does not include the -55°C lower temperature limit of the LM158APT. This device is not suitable for applications requiring operation below -40°C. For applications requiring the full -55°C to 125°C range, the LM2904AVQPWRG4 or LM2904PWRG3 are not suitable either, as they operate only to -40°C. The LM158APT's extended lower temperature range is a distinguishing feature among available substitutes.

Q: What are the package compatibility considerations when substituting the LM158APT?

A: The LM158APT is packaged in an 8-TSSOP format with 0.173" width and 4.40mm dimensions. All recommended substitutes except the BA4560YFV-MGE2 use the identical 8-TSSOP package. The BA4560YFV-MGE2 uses an 8-LSSOP package, which has the same 0.173" width and 4.40mm dimensions but differs in pin configuration and spacing. The 8-LSSOP package is not a direct mechanical substitute for the 8-TSSOP package and requires PCB layout modification. All other substitutes maintain full mechanical and electrical pin compatibility with the LM158APT.

Q: Why does the LM158APT have a higher slew rate (0.6V/µs) compared to most LM2904 variants (0.3V/µs)?

A: The slew rate difference reflects different design priorities between the LM158APT and LM2904 families. The LM158APT's higher slew rate (0.6V/µs) supports faster signal transitions and higher-frequency applications. The LM2904 variants with lower slew rates (0.3V/µs) are optimized for lower power consumption and cost reduction. The BA4560YFV-MGE2 offers a significantly higher slew rate (4V/µs), which is suitable for high-speed signal processing applications. Selection of a substitute should consider the specific slew rate requirements of the target application.

Q: Are all substitute parts ROHS3 compliant and MSL 1 rated like the LM158APT?

A: All substitute parts listed in this reference maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity level) ratings, matching the LM158APT's environmental compliance profile. This ensures compatibility with modern manufacturing processes and storage requirements without additional moisture control measures.

Q: What is the significance of the "Last Time Buy" status for the LM2904PWRG3?

A: The "Last Time Buy" status indicates that the LM2904PWRG3 is in its final production phase and will be discontinued. Inventory is available but will not be replenished after current stock is exhausted. For long-term production requirements, the LM2904PWRG3 should not be selected as a primary substitute. The UPC1251GR-9LG-E1-A or BA4560YFV-MGE2, both with active product status, are more suitable for ongoing production.

Q: Can the UPC358GR-9LG-E1-A replace the LM158APT in all applications?

A: The UPC358GR-9LG-E1-A is not a suitable replacement for the LM158APT in applications requiring the full -55°C to 125°C operating temperature range. The UPC358GR-9LG-E1-A operates only to 85°C maximum. Additionally, the UPC358GR-9LG-E1-A is classified as a standard amplifier rather than a general-purpose amplifier, and its supply current specification (350µA per channel) is lower than the LM158APT (700µA per channel). This device is suitable only for applications where the reduced temperature range and lower supply current are acceptable.