TS271IN Equivalent & Substitute Parts

Part Overview

The TS271IN is a general-purpose operational amplifier manufactured by STMicroelectronics in 8-DIP through-hole packaging. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and production requirements. The TS271IN operates across a supply voltage range of 3 V to 16 V with a single amplifier circuit configuration suitable for general-purpose analog signal processing applications.

Substiute Parts

TS271IN

STMicroelectronicsIn Stock: 1215TS271IN Datasheet

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TLC251ACP

Texas InstrumentsIn Stock: 941TLC251ACP Datasheet

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TLC251BCP

Texas InstrumentsIn Stock: 2102TLC251BCP Datasheet

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TLC251CP

Texas InstrumentsIn Stock: 1507TLC251CP Datasheet

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TLC2654ACP

Texas InstrumentsIn Stock: 2851TLC2654ACP Datasheet

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TLC2654AIP

Texas InstrumentsIn Stock: 1759TLC2654AIP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS271IN is determined by compatibility across the following critical parameters:

Package Compatibility: All substitute parts maintain the 8-DIP (0.300", 7.62mm) through-hole package format, ensuring direct mechanical and electrical pin compatibility.

Amplifier Configuration: All substitutes are single-circuit general-purpose operational amplifiers, matching the functional architecture of the TS271IN.

Supply Voltage Range: Substitute parts must operate within overlapping supply voltage specifications. The TS271IN operates from 3 V to 16 V. Substitute parts with minimum supply voltage requirements of 1.4 V to 4.6 V and maximum ratings of 16 V maintain compatibility within the TS271IN's operating envelope.

Operating Temperature Range: The TS271IN operates from -40°C to 125°C. Substitute parts with operating ranges of 0°C to 70°C or -40°C to 85°C represent different temperature specifications and must be evaluated based on application requirements.

Electrical Performance: While substitute parts exhibit different slew rates, gain bandwidth products, input bias currents, and input offset voltages, these parameters do not preclude substitution. The substitute parts represent enhanced or alternative performance characteristics within the general-purpose amplifier category.

Compliance and Status: All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the TS271IN.

Parameter Comparison

Engineering Selection Recommendations

TLC251ACP, TLC251BCP, TLC251CP (Texas Instruments LinCMOS™ Series)

These three variants from the TLC251 base product number are classified as Last Time Buy, indicating limited future availability. All three maintain the 8-DIP package format and general-purpose amplifier configuration. The TLC251 series exhibits enhanced performance characteristics including higher slew rates (5.3 V/µs) and gain bandwidth products (2.2 MHz) compared to the TS271IN. Operating temperature ranges are restricted to 0°C to 70°C, which represents a narrower specification than the TS271IN's -40°C to 125°C range. These parts are suitable for applications where the TS271IN's extended temperature range is not required.

TLC2654ACP (Texas Instruments LinCMOS™ Series)

The TLC2654ACP is classified as Active, providing the longest product lifecycle availability among all substitute options. This part maintains 8-DIP through-hole packaging and general-purpose amplifier functionality. The TLC2654ACP exhibits a minimum supply voltage of 4.6 V, which is higher than the TS271IN's 3 V minimum. Operating temperature range is 0°C to 70°C. The TLC2654ACP is suitable for applications operating within the 4.6 V to 16 V supply range and 0°C to 70°C temperature envelope.

TLC2654AIP (Texas Instruments LinCMOS™ Series)

The TLC2654AIP is classified as Last Time Buy with an extended operating temperature range of -40°C to 85°C, providing closer alignment to the TS271IN's temperature specification. This part maintains 8-DIP through-hole packaging and general-purpose amplifier functionality. The minimum supply voltage requirement of 4.6 V must be accommodated in the application design. The TLC2654AIP is suitable for applications requiring extended temperature operation within the -40°C to 85°C range and 4.6 V to 16 V supply envelope.

Compliance Considerations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the TS271IN. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001, maintaining regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can the TLC251 series parts directly replace the TS271IN in existing designs?

A: Direct pin-compatible replacement is possible due to identical 8-DIP package configuration. However, application-specific evaluation is required. The TLC251 series operates with a minimum supply voltage of 1.4 V compared to the TS271IN's 3 V minimum. Operating temperature range is restricted to 0°C to 70°C versus the TS271IN's -40°C to 125°C. Applications requiring the full temperature range of the TS271IN must use the TLC2654AIP instead.

Q: What is the difference between TLC251ACP, TLC251BCP, and TLC251CP?

A: All three variants share identical electrical performance specifications including slew rate (5.3 V/µs), gain bandwidth product (2.2 MHz), and supply voltage range (1.4 V to 16 V). The primary difference is input offset voltage: TLC251ACP specifies 900 µV, TLC251BCP specifies 390 µV, and TLC251CP specifies 1.1 mV. Selection depends on application offset voltage requirements.

Q: Why does the TLC2654ACP have a higher minimum supply voltage than the TS271IN?

A: The TLC2654ACP minimum supply voltage is 4.6 V, compared to the TS271IN's 3 V minimum. This is a design characteristic of the TLC2654 architecture. Applications operating at supply voltages below 4.6 V cannot use the TLC2654ACP and must select from the TLC251 series instead.

Q: Which substitute part has the longest product lifecycle?

A: The TLC2654ACP is classified as Active, indicating ongoing production and the longest available product lifecycle. All other substitute parts are classified as Last Time Buy, indicating limited future availability.

Q: Is the TLC2654AIP suitable for applications requiring the TS271IN's full temperature range?

A: The TLC2654AIP operates from -40°C to 85°C, which covers the TS271IN's lower temperature limit of -40°C but extends only to 85°C versus the TS271IN's 125°C maximum. Applications requiring operation above 85°C cannot use the TLC2654AIP.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the TS271IN.

Q: What packaging format do all substitute parts use?

A: All substitute parts use 8-DIP (0.300", 7.62mm) through-hole packaging, identical to the TS271IN. This ensures mechanical and electrical pin compatibility for direct board-level replacement.

Q: How do the slew rates of substitute parts compare to the TS271IN?

A: The TS271IN has a slew rate of 0.04 V/µs. The TLC251 series offers 5.3 V/µs, and the TLC2654 series offers 3.7 V/µs. Higher slew rates enable faster signal transitions and are beneficial for high-frequency applications. Applications sensitive to slew rate performance must evaluate whether the substitute part's characteristics are suitable.