LM258AWYST Equivalent & Substitute Parts

Part Overview

The LM258AWYST is a general-purpose operational amplifier featuring two independent circuits in an 8-MiniSO surface-mount package, manufactured by STMicroelectronics. This device is classified as obsolete, indicating discontinuation from active production. The LM258AWYST operates across a wide supply voltage range of 3V to 30V with an operating temperature range of -40°C to 105°C, meeting automotive-grade specifications with AEC-Q100 qualification. Identification of equivalent and substitute parts is necessary due to the obsolete status of this component, ensuring design continuity and supply chain reliability for applications requiring dual-channel general-purpose amplification.

Substiute Parts

LM258AWYST

STMicroelectronicsIn Stock: 12203LM258AWYST Datasheet

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ADA4096-2ARMZ-R7

Analog Devices Inc.In Stock: 3219ADA4096-2ARMZ-R7 Datasheet

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BA2904YFVM-CTR

Rohm SemiconductorIn Stock: 17803BA2904YFVM-CTR Datasheet

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LM258ADGKR

Texas InstrumentsIn Stock: 55153LM258ADGKR Datasheet

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LM258DGKR

Texas InstrumentsIn Stock: 25366LM258DGKR Datasheet

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OPA2137E/250

Texas InstrumentsIn Stock: 4922OPA2137E/250 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM258AWYST is determined by the following critical parameters: dual-circuit configuration (2 circuits), general-purpose amplifier classification, surface-mount packaging compatibility, supply voltage range (minimum 3V, maximum 30V or higher), and operating temperature range. The substitute parts listed maintain the core functional requirement of two independent operational amplifier circuits in compatible surface-mount packages.

The substitution logic is based on:

• Circuit Count: All substitutes provide exactly 2 independent amplifier circuits
• Package Compatibility: All substitutes use 8-pin surface-mount packages (8-MSOP, 8-VSSOP, or 8-TSSOP variants) with compatible pinouts
• Supply Voltage Range: All substitutes support minimum 3V supply with maximum ratings of 30V or greater
• Amplifier Classification: All substitutes are general-purpose operational amplifiers or J-FET variants suitable for general-purpose applications
• Compliance: All substitutes maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1)

Parameter Comparison

Engineering Selection Recommendations

LM258ADGKR (Texas Instruments) and LM258DGKR (Texas Instruments) are direct functional replacements for the LM258AWYST. Both devices maintain the LM258 base product lineage with identical circuit count, compatible packaging, and equivalent supply voltage specifications. These parts are in active production status, ensuring long-term availability. The LM258ADGKR is supplied in Tape & Reel packaging, while the LM258DGKR is supplied in Cut Tape & Digi-Reel format. Operating temperature ranges are narrower (-25°C to 85°C) compared to the original part, requiring verification for applications requiring the full -40°C to 105°C range.

BA2904YFVM-CTR (Rohm Semiconductor) provides an automotive-grade alternative with AEC-Q100 qualification matching the original part's automotive specification. This device maintains dual-circuit configuration and compatible packaging with extended maximum supply voltage (36V). The push-pull output configuration and reduced slew rate (0.2V/µs) necessitate application-specific evaluation.

ADA4096-2ARMZ-R7 (Analog Devices) offers superior performance characteristics including rail-to-rail output, significantly lower input bias current (3 nA), and extended operating temperature range (-40°C to 125°C). This device is suitable for applications requiring enhanced precision and wider temperature operation. The reduced output current per channel (10 mA) requires load analysis.

OPA2137E/250 (Texas Instruments) is a J-FET amplifier variant with significantly higher slew rate (3.5V/µs) and extremely low input bias current (5 pA). This device is classified as Last Time Buy, indicating limited future availability. The higher moisture sensitivity level (MSL 3) and minimum supply voltage requirement (4.5V) require consideration for specific applications.

For automotive applications requiring AEC-Q100 qualification, select either the BA2904YFVM-CTR or verify that the application does not mandate automotive-grade certification. For general-purpose replacements with active production status, the LM258ADGKR or LM258DGKR are recommended. For applications requiring extended temperature operation beyond 85°C, the ADA4096-2ARMZ-R7 is suitable.

Frequently Asked Questions (FAQ)

Q: Can the LM258ADGKR directly replace the LM258AWYST in all applications?

A: The LM258ADGKR maintains functional compatibility with identical circuit count, package pinout, and supply voltage range. However, the operating temperature range is limited to -25°C to 85°C compared to the original -40°C to 105°C specification. Applications operating outside this narrower range require alternative selection.

Q: What is the primary difference between LM258ADGKR and LM258DGKR?

A: Both devices are functionally identical with the same electrical specifications. The primary difference is packaging format: LM258ADGKR is supplied in Tape & Reel (TR) format, while LM258DGKR is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on assembly process requirements.

Q: Is the ADA4096-2ARMZ-R7 a suitable replacement for automotive applications?

A: The ADA4096-2ARMZ-R7 does not carry automotive-grade certification or AEC-Q100 qualification. For applications requiring automotive-grade components, select the BA2904YFVM-CTR, which maintains AEC-Q100 qualification equivalent to the original part.

Q: Why does the OPA2137E/250 have a higher slew rate than other substitutes?

A: The OPA2137E/250 is a J-FET amplifier architecture, which inherently provides higher slew rate performance (3.5V/µs) compared to standard CMOS or bipolar general-purpose amplifiers. This characteristic makes it suitable for applications requiring faster signal response, though it is classified as Last Time Buy with limited future availability.

Q: Are all substitute parts compatible with the same PCB layout as the LM258AWYST?

A: All substitute parts use 8-pin surface-mount packages (8-MSOP, 8-VSSOP, or 8-TSSOP variants) with compatible pinouts. Physical package dimensions are equivalent, allowing direct PCB layout compatibility. Verify specific package variant selection with your PCB design specifications.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating?

A: The LM258AWYST and most substitutes carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. The OPA2137E/250 carries MSL 3 (168 Hours), requiring controlled humidity storage and limiting shelf life to 168 hours after moisture exposure. This affects supply chain logistics and component handling procedures.

Q: Can the BA2904YFVM-CTR be used in applications requiring 40 mA output current per channel?

A: The BA2904YFVM-CTR provides 30 mA output current per channel, compared to 40 mA for the LM258AWYST. Applications requiring the full 40 mA output current specification must select alternative parts such as LM258ADGKR, LM258DGKR, or OPA2137E/250.

Q: What is the difference between general-purpose and J-FET amplifier types?

A: General-purpose amplifiers (LM258 variants, ADA4096-2ARMZ-R7, BA2904YFVM-CTR) use standard CMOS or bipolar input stages. J-FET amplifiers (OPA2137E/250) use junction field-effect transistor input stages, providing extremely low input bias current (5 pA) and higher input impedance. J-FET devices are suitable for high-impedance signal sources and precision measurement applications.

Q: Is the extended supply voltage range of BA2904YFVM-CTR (36V max) beneficial for all applications?

A: The extended maximum supply voltage (36V) of the BA2904YFVM-CTR provides additional design flexibility for applications requiring higher supply voltages. However, the original LM258AWYST specification of 30V maximum is sufficient for most general-purpose applications. Selection of extended voltage capability depends on specific circuit requirements.