LM201ADR2 Equivalent & Substitute Parts

Part Overview

The LM201ADR2 is a general-purpose operational amplifier manufactured by onsemi, housed in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The LM201ADR2 operates across a wide supply voltage range of 10V to 44V and is suitable for applications requiring single-channel amplification with moderate slew rate performance. Due to its obsolete status, identifying equivalent and substitute components is necessary for design continuity, procurement reliability, and long-term product support.

Substiute Parts

LM201ADR2

onsemiIn Stock: 2167LM201ADR2 Datasheet

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LM201ADR2G

onsemiIn Stock: 25409LM201ADR2G Datasheet

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AD548JRZ

Analog Devices Inc.In Stock: 1370AD548JRZ Datasheet

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AD548JRZ-REEL7

Analog Devices Inc.In Stock: 2803AD548JRZ-REEL7 Datasheet

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INA154UA

Texas InstrumentsIn Stock: 2024INA154UA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM201ADR2 is determined by the following critical parameters: package type (8-SOIC surface mount), amplifier classification (general purpose), number of circuits (single channel), supply voltage range compatibility, and operating temperature range. The LM201ADR2 requires substitute parts that maintain electrical compatibility within the specified supply voltage window and preserve functional performance in the intended application environment.

Substitute parts are grouped into two categories:

Category 1: Direct Functional Equivalents (onsemi LM201 Series) The LM201ADR2G is a direct equivalent from the same manufacturer and product line, differing only in packaging format (Tape & Reel versus individual packaging) and product status (Active versus Obsolete). This part maintains identical electrical specifications and package geometry.

Category 2: Cross-Manufacturer Alternatives The AD548JRZ, AD548JRZ-REEL7 (Analog Devices Inc.), and INA154UA (Texas Instruments) are functionally compatible alternatives that share the 8-SOIC package footprint and general-purpose amplifier classification. These parts operate within overlapping supply voltage ranges and maintain surface mount compatibility. However, electrical performance characteristics differ in specific parameters including slew rate, input bias current, and supply current consumption.

Parameter Comparison

Engineering Selection Recommendations

LM201ADR2G (onsemi) is the primary substitute for the obsolete LM201ADR2. Both parts are manufactured by onsemi, share identical electrical specifications, and maintain the same 8-SOIC package footprint. The LM201ADR2G is currently in active production with substantial inventory availability. The primary distinction is packaging format: LM201ADR2G is supplied in Tape & Reel format, whereas the original LM201ADR2 uses alternative packaging. The LM201ADR2G achieves ROHS3 compliance, addressing regulatory requirements that the original part does not meet.

AD548JRZ and AD548JRZ-REEL7 (Analog Devices Inc.) are functionally compatible alternatives suitable for applications where the LM201ADR2G is unavailable. These parts maintain the 8-SOIC package and general-purpose amplifier classification. The AD548 series exhibits superior input bias current performance (50 pA versus 30 nA) and higher slew rate (1.8 V/µs versus 0.5 V/µs). However, the maximum supply voltage is limited to 36V compared to the LM201ADR2's 44V maximum. The operating temperature range is narrower (0°C to 70°C versus -25°C to 85°C). Both AD548 variants are ROHS3 compliant and actively produced. Selection between AD548JRZ (Tube packaging) and AD548JRZ-REEL7 (Tape & Reel packaging) depends on procurement and assembly requirements.

INA154UA (Texas Instruments) is a differential amplifier alternative with significantly enhanced performance characteristics. This part features the highest slew rate (14 V/µs), lowest input offset voltage (100 µV), and extended operating temperature range (-40°C to 85°C). The INA154UA is ROHS3 compliant and actively produced. The primary limitation is the narrower maximum supply voltage (36V versus 44V). Additionally, the INA154UA is classified as a differential amplifier rather than a general-purpose amplifier, which may affect circuit compatibility depending on application requirements. Moisture sensitivity level is elevated to MSL 3 (168 Hours), requiring controlled storage conditions.

Selection of substitute parts must account for supply voltage requirements, operating temperature specifications, and functional amplifier classification. Applications requiring the full 44V supply range are limited to the LM201ADR2G. Applications operating within 0°C to 70°C temperature range benefit from the enhanced performance of AD548 series devices. Applications requiring extended low-temperature operation (-40°C) should consider the INA154UA.

Frequently Asked Questions (FAQ)

Q: Can the LM201ADR2G directly replace the LM201ADR2 in existing designs?

A: Yes. The LM201ADR2G is electrically and mechanically identical to the LM201ADR2. Both parts share the same 8-SOIC package footprint, identical electrical specifications, and pin configuration. The primary difference is packaging format (Tape & Reel versus individual packaging) and product status (Active versus Obsolete). No circuit modifications are required for substitution.

Q: What is the key limitation when substituting AD548JRZ for the LM201ADR2?

A: The AD548JRZ has a maximum supply voltage rating of 36V, whereas the LM201ADR2 operates up to 44V. If the application requires supply voltages exceeding 36V, the AD548JRZ is not suitable. Additionally, the operating temperature range is narrower (0°C to 70°C versus -25°C to 85°C), which may restrict use in extended temperature environments.

Q: Is the INA154UA a suitable substitute for general-purpose amplifier applications?

A: The INA154UA is classified as a differential amplifier, not a general-purpose amplifier. While it shares the 8-SOIC package and surface mount compatibility, its functional architecture differs from the LM201ADR2. Substitution is appropriate only for applications specifically requiring differential amplification. General-purpose amplifier applications should prioritize the LM201ADR2G or AD548 series.

Q: What are the RoHS compliance implications of substituting the LM201ADR2?

A: The original LM201ADR2 is RoHS non-compliant. All substitute parts (LM201ADR2G, AD548JRZ, AD548JRZ-REEL7, and INA154UA) are ROHS3 compliant. If the application or end-product requires RoHS compliance, substitution with any of these alternatives satisfies regulatory requirements.

Q: How do packaging formats (Tube versus Tape & Reel) affect substitution decisions?

A: Packaging format does not affect electrical or mechanical compatibility. The choice between Tube (AD548JRZ) and Tape & Reel (AD548JRZ-REEL7, LM201ADR2G) depends on procurement volume, assembly equipment capabilities, and inventory management practices. High-volume production typically utilizes Tape & Reel format for automated assembly. Low-volume or prototype applications may use Tube packaging.

Q: What is the significance of Moisture Sensitivity Level (MSL) in substitute part selection?

A: The LM201ADR2, LM201ADR2G, AD548JRZ, and AD548JRZ-REEL7 all have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The INA154UA has MSL 3 (168 Hours), requiring controlled storage and handling. If the INA154UA is selected, components must be stored in dry conditions and used within 168 hours of package opening, or re-baked according to IPC standards.

Q: Can the LM201ADR2 be used in applications requiring temperatures below -25°C?

A: No. The LM201ADR2 operating temperature range is -25°C to 85°C. For applications requiring extended low-temperature operation, the INA154UA (-40°C to 85°C) is the only substitute option provided that other electrical and functional requirements are met.

Q: What is the impact of slew rate differences between substitute parts?

A: The LM201ADR2 and LM201ADR2G have a slew rate of 0.5 V/µs. The AD548 series has 1.8 V/µs, and the INA154UA has 14 V/µs. Higher slew rates enable faster signal transitions and improved performance in high-frequency applications. Applications sensitive to slew rate limitations should verify that substitute parts meet performance requirements.