TLC271ACPS Equivalent & Substitute Parts

Part Overview

The TLC271ACPS is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. This device is classified as a Last Time Buy product, indicating that it is no longer in active production. The TLC271ACPS belongs to the LinCMOS™ series and is designed for applications requiring low-power, general-purpose amplification with a single operational amplifier circuit.

Due to its Last Time Buy status, identifying equivalent and substitute parts is necessary for design continuity, long-term product support, and ensuring availability for new production runs or design revisions.

Substiute Parts

TLC271ACPS

Texas InstrumentsIn Stock: 1559TLC271ACPS Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271ACPS is determined by the following critical parameters:

Functional Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1 circuit per package
• Supply Voltage Range: Minimum 3 V to Maximum 16 V
• Operating Temperature: Minimum 0°C to Maximum 70°C

Performance Characteristics:

• Slew Rate: 5.3 V/µs
• Gain Bandwidth Product: 2.2 MHz
• Input Bias Current: 0.7 pA
• Input Offset Voltage: 900 µV
• Output Current per Channel: 30 mA
• Supply Current: 950 µA

Physical and Compliance Requirements:

• Surface Mount technology
• RoHS3 Compliance
• Moisture Sensitivity Level 1

The TLV9151IDBVR qualifies as a substitute based on functional equivalence in the general-purpose amplifier category, single-circuit configuration, overlapping supply voltage range, and compliance certifications. However, the substitute part exhibits enhanced performance specifications and operates across an extended temperature range.

Parameter Comparison

Engineering Selection Recommendations

TLC271ACPS Status Consideration: The TLC271ACPS is designated as Last Time Buy, indicating cessation of production. For new designs or production continuity, the TLV9151IDBVR is the recommended substitute from Texas Instruments.

Compliance and Certification: Both the TLC271ACPS and TLV9151IDBVR maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with current manufacturing and environmental standards. Both devices are classified under ECCN EAR99 and HTSUS 8542.33.0001.

Supply Voltage Compatibility: The TLV9151IDBVR operates at a lower minimum supply voltage (2.7 V versus 3 V), providing enhanced flexibility in low-voltage applications while maintaining the same maximum supply voltage (16 V). This characteristic ensures the substitute can function in all applications where the TLC271ACPS was specified.

Performance Enhancement: The TLV9151IDBVR provides superior performance metrics across multiple parameters: increased slew rate (20 V/µs versus 5.3 V/µs), higher gain bandwidth product (4.5 MHz versus 2.2 MHz), improved input offset voltage (125 µV versus 900 µV), and increased output current capability (75 mA versus 30 mA). These enhancements support applications requiring faster signal processing and greater output drive capability.

Temperature Range Extension: The TLV9151IDBVR extends the operating temperature range to -40°C to 125°C, compared to the TLC271ACPS range of 0°C to 70°C. This extended range accommodates industrial and automotive applications requiring broader thermal operation.

Package Consideration: The TLC271ACPS uses an 8-SOIC package, while the TLV9151IDBVR uses a SOT-23-5 package. PCB layout modifications are required for substitution due to different pin configurations and physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271ACPS without circuit modifications?

A: The TLV9151IDBVR is functionally equivalent as a general-purpose operational amplifier but requires PCB layout changes due to different package types (8-SOIC versus SOT-23-5). Pin-to-pin correspondence must be verified during schematic redesign. The superior performance characteristics of the TLV9151IDBVR are compatible with applications designed for the TLC271ACPS.

Q: What is the primary reason for substituting the TLC271ACPS?

A: The TLC271ACPS is classified as Last Time Buy, indicating production discontinuation. The TLV9151IDBVR is an active product from the same manufacturer, ensuring long-term availability and supply chain continuity.

Q: Are there any supply voltage limitations when substituting?

A: No. The TLV9151IDBVR operates across a wider supply voltage range (2.7 V to 16 V) compared to the TLC271ACPS (3 V to 16 V). All applications operating within the TLC271ACPS supply range are fully supported by the substitute.

Q: How do the performance specifications compare?

A: The TLV9151IDBVR provides enhanced performance: 3.8× faster slew rate, 2.05× higher gain bandwidth product, 7.2× lower input offset voltage, and 2.5× greater output current capability. These improvements enable faster signal processing and greater output drive without compromising backward compatibility in functional applications.

Q: Does the extended operating temperature range of the TLV9151IDBVR affect compatibility?

A: No. The extended temperature range (-40°C to 125°C) of the TLV9151IDBVR encompasses the TLC271ACPS operating range (0°C to 70°C). Applications operating within the original temperature specification remain fully compatible.

Q: Are both devices RoHS compliant?

A: Yes. Both the TLC271ACPS and TLV9151IDBVR are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and manufacturing standards.

Q: What package changes are required for substitution?

A: The TLC271ACPS uses an 8-SOIC (0.209", 5.30mm Width) package, while the TLV9151IDBVR uses a SOT-23-5 package. PCB footprint redesign and schematic pin reassignment are necessary. The TLV9151IDBVR's smaller footprint may provide space savings in compact designs.