TS271ACD Equivalent & Substitute Parts

Part Overview

The TS271ACD 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 equivalent and substitute parts essential for ongoing design support and production continuity. The TS271ACD operates across a supply voltage range of 3V to 16V and is suitable for applications requiring low-power general-purpose amplification in the 0°C to 70°C operating temperature range.

Substiute Parts

TS271ACD

STMicroelectronicsIn Stock: 1157TS271ACD Datasheet

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TLC271ACD

Texas InstrumentsIn Stock: 2196TLC271ACD Datasheet

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TLC271ACDR

Texas InstrumentsIn Stock: 1852TLC271ACDR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS271ACD is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Compatibility Parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Amplifier Type: General Purpose
• Number of Circuits: 1
• Voltage - Supply Span: 3V minimum to 16V maximum
• Operating Temperature Range: 0°C to 70°C
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Electrical Performance Parameters (Allowable Variation): Substitute parts must maintain compatibility within the defined supply voltage and temperature operating ranges. The following electrical characteristics may vary between the main part and substitutes:

• Slew Rate
• Gain Bandwidth Product
• Current - Input Bias
• Voltage - Input Offset
• Current - Supply
• Current - Output / Channel

The TLC271ACD and TLC271ACDR, both manufactured by Texas Instruments, meet all mandatory compatibility requirements and are qualified as direct substitutes for the TS271ACD.

Parameter Comparison

Engineering Selection Recommendations

TS271ACD Status: Obsolete product with 1134 units in current inventory.

Substitute Selection Criteria:

The TLC271ACD and TLC271ACDR are qualified substitutes based on the following factors:

1. Regulatory Compliance: Both substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original TS271ACD specifications.

2. Package Compatibility: All three parts utilize the identical 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct PCB footprint compatibility without layout modifications.

3. Electrical Operating Range: The substitute parts operate within the same supply voltage range (3V to 16V) and temperature range (0°C to 70°C) as the original part, maintaining functional compatibility in existing circuit designs.

4. Product Status Consideration: The TLC271ACD and TLC271ACDR are designated as Last Time Buy products, indicating extended availability compared to the obsolete TS271ACD status.

5. Packaging Options: The TLC271ACD is supplied in Tube packaging, while the TLC271ACDR is supplied in Cut Tape (CT) & Digi-Reel® format, providing flexibility for different procurement and assembly workflows.

Inventory Availability: TLC271ACD (2100 units) and TLC271ACDR (1784 units) provide substantial stock levels for production planning.

Frequently Asked Questions (FAQ)

Q: Can the TLC271ACD or TLC271ACDR be used as direct replacements for the TS271ACD in existing designs?

A: Yes. Both Texas Instruments parts are direct substitutes. They share identical package geometry (8-SOIC), supply voltage range (3V to 16V), operating temperature range (0°C to 70°C), and regulatory compliance status (ROHS3). No PCB modifications are required.

Q: What are the key electrical differences between the TS271ACD and its substitutes?

A: The TLC271ACD and TLC271ACDR exhibit higher slew rate (5.3V/µs versus 0.04V/µs), higher gain bandwidth product (2.2MHz versus 100kHz), lower input bias current (0.7pA versus 1pA), higher supply current (950µA versus 10µA), and lower output current per channel (30mA versus 45mA). These differences must be evaluated against specific circuit requirements.

Q: Are there packaging differences between TLC271ACD and TLC271ACDR?

A: Both parts use the same 8-SOIC package. The primary difference is the supplier packaging format: TLC271ACD is supplied in Tube packaging, while TLC271ACDR is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on assembly process requirements and procurement preferences.

Q: Do the substitute parts maintain the same moisture sensitivity level as the original TS271ACD?

A: Yes. All three parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: What is the significance of the Last Time Buy status for the TLC271 substitutes?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for these products but continues to accept orders for a defined period. This provides extended availability compared to the obsolete TS271ACD, allowing for design transition planning and inventory buildup.

Q: Are the substitute parts suitable for new designs?

A: The TLC271ACD and TLC271ACDR are qualified for use in applications where the electrical performance characteristics (higher slew rate, higher bandwidth, higher supply current) are compatible with circuit requirements. Product status should be considered for long-term production planning.