TLC271ACPSR Equivalent & Substitute Parts

Part Overview

The TLC271ACPSR is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is part of the LinCMOS™ series and operates across a 3V to 16V supply range with a slew rate of 5.3V/µs and gain bandwidth product of 2.2 MHz. The TLC271ACPSR has reached Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and system updates.

Substiute Parts

TLC271ACPSR

Texas InstrumentsIn Stock: 2070TLC271ACPSR Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271ACPSR is determined by functional equivalence across the following critical parameters:

Functional Compatibility Criteria:

• Amplifier Type: General Purpose operation
• Number of Circuits: Single circuit configuration
• Supply Voltage Range: Minimum 3V to maximum 16V operation
• Surface Mount Technology: Compatibility with automated assembly processes
• RoHS3 Compliance: Environmental and regulatory alignment

Performance Considerations: Substitute parts must maintain general-purpose amplifier functionality within the specified supply voltage window. The TLC271ACPSR operates at 0°C to 70°C; substitute parts with extended temperature ranges remain functionally compatible for applications within the original temperature specification.

Package Considerations: The original 8-SOIC package may be substituted with alternative surface mount packages provided the electrical specifications remain within acceptable operating parameters for the target application.

Parameter Comparison

Engineering Selection Recommendations

TLV9151IDBVR as Primary Substitute:

The TLV9151IDBVR is the manufacturer-recommended substitute for the TLC271ACPSR. Both devices are manufactured by Texas Instruments and maintain ROHS3 compliance with MSL Level 1 ratings. The TLV9151IDBVR is in Active product status, ensuring continued availability and support.

Performance Enhancements: The TLV9151IDBVR provides improved electrical performance characteristics compared to the TLC271ACPSR:

• Slew rate increased from 5.3 V/µs to 20 V/µs
• Gain bandwidth product increased from 2.2 MHz to 4.5 MHz
• Input offset voltage reduced from 900 µV to 125 µV
• Output current capability increased from 30 mA to 75 mA
• Supply current reduced from 950 µA to 560 µA

Supply Voltage Compatibility: The TLV9151IDBVR operates across 2.7V to 16V, providing broader low-voltage capability while maintaining the 16V maximum. Applications requiring 3V minimum operation remain fully compatible.

Temperature Range Consideration: The TLV9151IDBVR extends operating temperature to -40°C to 125°C. For applications limited to the original 0°C to 70°C range, this extended specification does not introduce incompatibility.

Package Transition: The shift from 8-SOIC to SOT-23-5 requires PCB layout modification. The SOT-23-5 package is smaller and may reduce board space requirements in new designs.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271ACPSR without circuit modification?

A: Functional substitution is possible due to matching general-purpose amplifier operation and overlapping supply voltage ranges. However, the package change from 8-SOIC to SOT-23-5 requires PCB layout redesign. Pin configuration differences must be verified against the respective datasheets before implementation.

Q: What are the key performance differences between these devices?

A: The TLV9151IDBVR provides superior performance across multiple parameters: 3.8× faster slew rate, 2.05× higher gain bandwidth product, 7.2× lower input offset voltage, and 2.5× higher output current capability. Supply current consumption is reduced by 41%. These improvements make the TLV9151IDBVR suitable for applications requiring faster response and lower noise characteristics.

Q: Is the TLV9151IDBVR suitable for applications originally designed for the TLC271ACPSR?

A: Yes, for applications operating within the 3V to 16V supply range and 0°C to 70°C temperature window. The improved performance characteristics of the TLV9151IDBVR are backward-compatible with TLC271ACPSR circuit designs. Verification of pin assignments and package footprint compatibility is required.

Q: Why is the TLC271ACPSR reaching Last Time Buy status?

A: Last Time Buy status indicates Texas Instruments is discontinuing production. The TLV9151IDBVR represents the active replacement in the product portfolio, offering enhanced performance and extended product lifecycle support.

Q: Are both devices RoHS compliant?

A: Yes, both the TLC271ACPSR and TLV9151IDBVR are ROHS3 compliant with MSL Level 1 ratings, suitable for standard manufacturing and storage conditions without moisture sensitivity concerns.

Q: What is the impact of the lower minimum supply voltage on the TLV9151IDBVR?

A: The TLV9151IDBVR minimum supply voltage of 2.7V versus 3V for the TLC271ACPSR expands low-voltage application capability. For designs requiring 3V minimum operation, both devices remain compatible.