TLC271CPS Equivalent & Substitute Parts

Part Overview

The TLC271CPS 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 TLC271CPS operates across a supply voltage range of 3V to 16V and is suitable for applications requiring low-power amplification with moderate bandwidth performance.

Due to its Last Time Buy status, identifying functionally compatible substitute components is necessary for design continuity and long-term product support. Substitute parts must maintain electrical compatibility while potentially offering enhanced performance characteristics or improved availability.

Substiute Parts

TLC271CPS

Texas InstrumentsIn Stock: 3412TLC271CPS Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271CPS is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier Type: General Purpose classification
• Number of Circuits: Single-channel configuration
• Supply Voltage Range: Minimum 3V to maximum 16V overlap
• Output Type: Compatibility with existing circuit topology
• Operating Temperature: Functional range sufficient for application requirements

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount requirement
• Package Configuration: Pin count and footprint considerations

The TLV9151IDBVR qualifies as a substitute for the TLC271CPS based on shared general-purpose amplifier classification, single-circuit configuration, and overlapping supply voltage specifications. The substitute part operates within the TLC271CPS supply range and maintains surface-mount compatibility. The TLV9151IDBVR offers enhanced performance characteristics including higher slew rate, increased gain bandwidth product, and improved output current capability, while maintaining RoHS3 compliance and MSL Level 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLC271CPS carries a Last Time Buy designation, confirming end-of-life status. The TLV9151IDBVR maintains Active product status with Texas Instruments, ensuring continued availability and manufacturing support.

Compliance and Certification: Both components maintain ROHS3 compliance and MSL Level 1 rating, satisfying regulatory requirements for equivalent applications. Both components are classified as REACH Unaffected and carry identical ECCN and HTSUS codes, confirming regulatory equivalence.

Performance Enhancement: The TLV9151IDBVR provides measurable performance improvements over the TLC271CPS across multiple parameters: slew rate increases from 5.3V/µs to 20V/µs, gain bandwidth product increases from 2.2MHz to 4.5MHz, and output current capability increases from 30mA to 75mA. Supply current consumption decreases from 950µA to 560µA. Input offset voltage improves from 1.1mV to 0.125mV.

Package and Mounting: The TLV9151IDBVR utilizes a SOT-23-5 package, which differs from the 8-SOIC package of the TLC271CPS. This package change requires PCB layout modification and may necessitate schematic redesign due to different pin configurations and pin count reduction.

Supply Voltage Compatibility: The TLV9151IDBVR operates at a minimum supply voltage of 2.7V, extending lower-voltage capability compared to the TLC271CPS minimum of 3V. Maximum supply voltage remains at 16V for both devices, maintaining full compatibility within the TLC271CPS operating range.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271CPS without PCB modification?

A: No. The TLV9151IDBVR uses a SOT-23-5 package with 5 pins, while the TLC271CPS uses an 8-SOIC package with 8 pins. Direct socket substitution is not possible. PCB layout redesign and schematic modification are required.

Q: What are the key electrical differences between these two amplifiers?

A: The TLV9151IDBVR provides superior performance in slew rate (20V/µs vs. 5.3V/µs), gain bandwidth product (4.5MHz vs. 2.2MHz), output current (75mA vs. 30mA), and input offset voltage (0.125mV vs. 1.1mV). The TLV9151IDBVR also features rail-to-rail output capability and lower supply current consumption (560µA vs. 950µA).

Q: Are both devices suitable for the same supply voltage range?

A: The TLV9151IDBVR operates from 2.7V to 16V, while the TLC271CPS operates from 3V to 16V. The TLV9151IDBVR extends lower-voltage capability but maintains full compatibility within the TLC271CPS range. Applications requiring operation below 3V require the TLV9151IDBVR.

Q: Do both devices meet the same regulatory requirements?

A: Yes. Both the TLC271CPS and TLV9151IDBVR are ROHS3 compliant, carry MSL Level 1 rating, are REACH Unaffected, and share identical ECCN and HTSUS classifications.

Q: What is the operating temperature difference between these devices?

A: The TLC271CPS operates from 0°C to 70°C, while the TLV9151IDBVR operates from -40°C to 125°C. The TLV9151IDBVR provides extended temperature range capability suitable for industrial and automotive applications.

Q: Why does the TLC271CPS have a Last Time Buy status?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of the TLC271CPS. Existing inventory is available for purchase, but no future manufacturing is planned. The TLV9151IDBVR is recommended for new designs requiring long-term component availability.

Q: What is the significance of rail-to-rail output in the TLV9151IDBVR?

A: Rail-to-rail output capability allows the amplifier output to swing closer to the positive and negative supply rails, maximizing the usable output voltage range. This feature is absent in the TLC271CPS and may provide improved performance in low-supply-voltage applications.

Q: Are there pin-compatible alternatives to the TLC271CPS in the 8-SOIC package?

A: The provided substitute list contains only the TLV9151IDBVR, which uses a different package. Pin-compatible alternatives in the 8-SOIC package are not included in this reference.