TLC271CPW Equivalent & Substitute Parts

Part Overview

The TLC271CPW is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-TSSOP surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited availability. The TLC271CPW operates across a 3V to 16V supply range and is designed for applications requiring low input bias current and moderate bandwidth performance.

Finding equivalent and substitute parts is necessary due to the Last Time Buy status of the TLC271CPW. Identifying compatible alternatives ensures design continuity and long-term supply chain reliability for new production runs and maintenance applications.

Substiute Parts

TLC271CPW

Texas InstrumentsIn Stock: 2246TLC271CPW Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271CPW is determined by compatibility across the following critical parameters:

Functional Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1 circuit per package
• Supply Voltage Range: Minimum 3V, Maximum 16V
• RoHS3 Compliance: Required for regulatory alignment

Performance Compatibility Criteria:

• Slew Rate: Substitute must meet or exceed 5.3 V/µs
• Gain Bandwidth Product: Substitute must meet or exceed 2.2 MHz
• Input Bias Current: Substitute must not exceed 0.7 pA significantly
• Output Current Capability: Substitute must provide minimum 30 mA per channel

Physical Compatibility Criteria:

• Mounting Type: Surface Mount required
• Moisture Sensitivity Level: MSL 1 (Unlimited) preferred

The TLV9151IDBVR qualifies as a direct substitute based on these parameters. While it employs a different package format (SOT-23-5 versus 8-TSSOP), it maintains functional and electrical compatibility within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The TLV9151IDBVR is suitable as a substitute for the TLC271CPW in applications where the following conditions are met:

1. Supply Voltage Compatibility: The application operates within the 2.7V to 16V range. The TLV9151IDBVR supports a lower minimum supply voltage (2.7V versus 3V), expanding operational flexibility.

2. Package Transition: The design must accommodate a change from 8-TSSOP to SOT-23-5 packaging. This requires PCB layout modification and may affect board space allocation.

3. Performance Enhancement: The TLV9151IDBVR provides superior performance metrics including higher slew rate (20 V/µs versus 5.3 V/µs), higher gain bandwidth product (4.5 MHz versus 2.2 MHz), and rail-to-rail output capability. These enhancements are backward compatible with TLC271CPW applications.

4. Temperature Range: The TLV9151IDBVR operates across -40°C to 125°C, compared to the TLC271CPW range of 0°C to 70°C. This extended range supports broader environmental applications.

5. Regulatory Compliance: Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

Product Status Consideration:

The TLC271CPW is Last Time Buy. The TLV9151IDBVR is Active status, providing long-term availability and supply chain stability for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271CPW without circuit modification?

A: Electrical substitution is possible due to matching amplifier type, circuit count, and supply voltage compatibility. However, the package change from 8-TSSOP to SOT-23-5 requires PCB layout redesign. Pin configuration must be verified against the respective datasheets before implementation.

Q: What is the primary reason for substituting the TLC271CPW?

A: The TLC271CPW is designated Last Time Buy, indicating production discontinuation. The TLV9151IDBVR, with Active product status, ensures continued availability for new designs and production runs.

Q: Does the TLV9151IDBVR provide better performance than the TLC271CPW?

A: The TLV9151IDBVR exceeds TLC271CPW specifications in slew rate (20 V/µs versus 5.3 V/µs), gain bandwidth product (4.5 MHz versus 2.2 MHz), output current capability (75 mA versus 30 mA), and input offset voltage (0.125 mV versus 1.1 mV). It also features rail-to-rail output capability, which the TLC271CPW does not provide.

Q: Are there supply voltage limitations when substituting?

A: The TLV9151IDBVR operates at a lower minimum supply voltage (2.7V versus 3V). Applications requiring exactly 3V minimum operation must verify that 2.7V operation is acceptable. The maximum supply voltage remains 16V for both devices.

Q: What packaging considerations apply to this substitution?

A: The TLC271CPW uses 8-TSSOP packaging (0.173" width, 4.40mm). The TLV9151IDBVR uses SOT-23-5 packaging (SC-74A). These are physically distinct packages requiring PCB redesign. Pin count differs (8 pins versus 5 pins), necessitating schematic and layout verification.

Q: Is the TLV9151IDBVR suitable for extended temperature applications?

A: Yes. The TLV9151IDBVR operates across -40°C to 125°C, compared to the TLC271CPW range of 0°C to 70°C. This extended range supports industrial and automotive temperature environments beyond the original device capability.

Q: Do both devices maintain the same regulatory compliance?

A: Yes. Both the TLC271CPW and TLV9151IDBVR are ROHS3 compliant and REACH unaffected, ensuring equivalent regulatory status for component selection and supply chain documentation.