TS271AIN Equivalent & Substitute Parts

Part Overview

The TS271AIN is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in an 8-DIP through-hole package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The TS271AIN operates across a supply voltage range of 3V to 16V and is suitable for applications requiring low-speed amplification with moderate output current capability.

Substiute Parts

TS271AIN

STMicroelectronicsIn Stock: 667TS271AIN Datasheet

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TLC271AIP

Texas InstrumentsIn Stock: 2020TLC271AIP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS271AIN is determined by compatibility across the following critical parameters:

Package and Mounting Compatibility: The substitute part must use an 8-DIP through-hole package with identical 0.300" (7.62mm) pitch to ensure direct PCB footprint compatibility without layout modifications.

Electrical Operating Range: The substitute must support the full supply voltage span of 3V to 16V minimum. Operating temperature range compatibility is evaluated based on application requirements.

Functional Classification: Both the main part and substitute must be classified as general-purpose operational amplifiers with a single circuit configuration.

Compliance and Regulatory Status: All substitute parts must maintain ROHS3 compliance and REACH unaffected status to satisfy current manufacturing and environmental regulations.

The TLC271AIP from Texas Instruments satisfies these substitution criteria through identical package geometry, overlapping supply voltage range (4V to 16V), and equivalent functional classification as a general-purpose amplifier in 8-DIP configuration.

Parameter Comparison

Engineering Selection Recommendations

Obsolescence Mitigation: The TS271AIN is classified as obsolete. The TLC271AIP is classified as Last Time Buy, indicating limited future availability. Selection of either part should account for long-term supply chain planning.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements for new designs and production.

Supply Voltage Consideration: The TLC271AIP minimum supply voltage is 4V, compared to 3V for the TS271AIN. Applications requiring operation below 4V cannot use the TLC271AIP as a direct substitute.

Temperature Range Consideration: The TS271AIN supports operation to 125°C, while the TLC271AIP is rated to 85°C maximum. Applications requiring extended high-temperature operation must retain the TS271AIN or identify alternative solutions.

Performance Characteristics: The TLC271AIP exhibits significantly higher slew rate (5.3V/µs versus 0.04V/µs) and gain bandwidth product (2.2MHz versus 100kHz). These enhanced performance characteristics do not preclude substitution in applications designed for the TS271AIN, as the substitute provides superior dynamic response.

Frequently Asked Questions (FAQ)

Q: Can the TLC271AIP be used as a direct replacement for the TS271AIN in all applications?

A: Direct substitution is possible only when the application supply voltage is 4V or higher and the maximum operating temperature does not exceed 85°C. Applications requiring 3V operation or temperatures above 85°C require design modification or alternative component selection.

Q: Are there any PCB layout changes required when substituting the TLC271AIP for the TS271AIN?

A: No PCB layout changes are required. Both devices use identical 8-DIP through-hole packages with 0.300" (7.62mm) pitch, enabling direct pin-for-pin substitution without footprint modification.

Q: What is the significance of the higher slew rate and gain bandwidth product in the TLC271AIP?

A: The TLC271AIP provides faster signal response and wider frequency response compared to the TS271AIN. These characteristics represent performance enhancements that do not create incompatibility in applications designed for the slower TS271AIN. However, circuit behavior may differ in applications with tight timing or frequency-dependent requirements.

Q: Why is the TLC271AIP classified as Last Time Buy rather than active?

A: Last Time Buy status indicates that the manufacturer has announced end-of-life for this product. Existing inventory remains available for purchase, but production will cease. Long-term designs should evaluate alternative components or secure adequate stock for production requirements.

Q: What compliance certifications apply to both parts?

A: Both the TS271AIN and TLC271AIP are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: How do the input bias current specifications compare?

A: The TLC271AIP exhibits lower input bias current (0.7pA) compared to the TS271AIN (1pA). This represents a minor improvement in input impedance characteristics and does not affect substitution compatibility.