TS271AID Equivalent & Substitute Parts

Part Overview

The TS271AID is a general-purpose operational amplifier manufactured by STMicroelectronics in an 8-SOIC surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The TS271AID serves applications requiring low-power amplification with moderate bandwidth characteristics and is suitable for battery-powered and low-power circuit implementations.

Substiute Parts

TS271AID

STMicroelectronicsIn Stock: 954TS271AID Datasheet

Current PartRFQ

TLC271AID

Texas InstrumentsIn Stock: 1017TLC271AID Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS271AID is determined by compatibility across the following critical parameters:

Package and Mounting Compatibility: Both the main part and substitute must use the 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width) to ensure direct PCB footprint compatibility without layout modifications.

Functional Classification: The substitute must be classified as a general-purpose operational amplifier with a single circuit configuration to maintain functional equivalence in the application.

Supply Voltage Range: The substitute must operate within the specified supply voltage range. The TS271AID operates from 3 V to 16 V minimum and maximum supply span. Substitutes must support this range or a compatible subset.

Environmental and Compliance Requirements: Both parts must maintain RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating to ensure regulatory and manufacturing process compatibility.

Electrical Performance Boundaries: While substitutes may exceed the performance specifications of the TS271AID (higher slew rate, gain bandwidth product, lower input bias current), they must not fall below the minimum electrical requirements of the original design.

The TLC271AID from Texas Instruments meets all substitution criteria and is identified as a direct equivalent for the TS271AID.

Parameter Comparison

Engineering Selection Recommendations

TS271AID (STMicroelectronics): This part is classified as obsolete. Current inventory of 926 pieces is available, but long-term procurement is not assured. This part is suitable only for existing designs requiring component replacement or for applications where existing stock is available.

TLC271AID (Texas Instruments): This part is classified as Last Time Buy, indicating limited future availability. Current inventory of 1,005 pieces is in stock. The TLC271AID is suitable as a direct substitute for the TS271AID in new designs and for replacement applications. Both parts maintain ROHS3 compliance and MSL Level 1 ratings, ensuring regulatory and manufacturing compatibility.

Selection Basis: The choice between these parts should be based on procurement availability and design timeline. For new designs, the TLC271AID is the preferred selection due to its superior electrical performance characteristics (higher slew rate and gain bandwidth product) while maintaining package and compliance equivalence. For existing designs currently using the TS271AID, the TLC271AID provides a direct functional replacement without PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TLC271AID be used as a direct replacement for the TS271AID without PCB modifications?

A: Yes. Both devices use the identical 8-SOIC package with matching physical dimensions (0.154", 3.90mm Width). Direct PCB footprint compatibility is assured, and no layout modifications are required.

Q: What are the key electrical differences between the TS271AID and TLC271AID?

A: The TLC271AID provides superior performance in slew rate (5.3 V/µs versus 0.04 V/µs) and gain bandwidth product (2.2 MHz versus 100 kHz). The TLC271AID has lower input bias current (0.7 pA versus 1 pA) but higher supply current (950 µA versus 10 µA). Input offset voltage is identical at 900 µV for both devices.

Q: Are there supply voltage compatibility concerns when substituting the TLC271AID for the TS271AID?

A: The TLC271AID requires a minimum supply voltage of 4 V, while the TS271AID operates from 3 V minimum. Designs operating at 3 V supply voltage cannot use the TLC271AID as a substitute. Both devices support the maximum supply voltage of 16 V.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the TS271AID and TLC271AID are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. Both are REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.33.0001.

Q: What is the operating temperature range difference between these parts?

A: The TS271AID operates from -40°C to 125°C, while the TLC271AID operates from -40°C to 85°C. Designs requiring operation above 85°C cannot use the TLC271AID as a substitute.

Q: Why is the TS271AID classified as obsolete?

A: Obsolete classification indicates that the manufacturer has discontinued production and support for this device. Existing inventory may be available through distributors, but long-term procurement cannot be assured.

Q: What does Last Time Buy status mean for the TLC271AID?

A: Last Time Buy status indicates that Texas Instruments has announced the end of production for this device. Current inventory is available for purchase, but future availability is limited. Customers requiring this device should secure inventory during the Last Time Buy period.