TLC271ACP Equivalent & Substitute Parts

Part Overview

The TLC271ACP is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory. The TLC271ACP operates within a 3V to 16V supply range and is suitable for applications requiring low input bias current and moderate bandwidth performance. Due to its Last Time Buy status, identifying functionally compatible substitute components is essential for design continuity and long-term product support.

Substiute Parts

TLC271ACP

Texas InstrumentsIn Stock: 2189TLC271ACP Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271ACP is determined by the following critical parameters:

Functional Compatibility Criteria:

• Single-channel general-purpose operational amplifier architecture
• Supply voltage range compatibility (minimum 3V, maximum 16V)
• Input bias current specification (0.7 pA baseline)
• Output current capability (minimum 30 mA per channel)
• Operating temperature range coverage

Packaging and Form Factor: The TLC271ACP uses an 8-DIP through-hole package. Substitute parts may employ different packaging technologies (surface mount, tape-and-reel) provided the electrical specifications remain within acceptable tolerances for the application.

Compliance and Status: All substitute parts must maintain RoHS3 compliance and REACH unaffected status to ensure regulatory alignment with the original component.

The TLV9151IDBVR qualifies as a manufacturer-recommended substitute based on functional equivalence within the specified electrical parameters, despite differences in package form factor and enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

TLV9151IDBVR as Primary Substitute:

The TLV9151IDBVR is designated as the manufacturer-recommended substitute for the TLC271ACP. This recommendation is based on the following factors:

Regulatory Compliance: Both components maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production continuity.

Product Status: The TLV9151IDBVR carries Active product status with 2339 units in stock, providing long-term availability compared to the Last Time Buy status of the TLC271ACP.

Electrical Functionality: The TLV9151IDBVR operates within the same supply voltage range (2.7V to 16V), encompassing the TLC271ACP operating window (3V to 16V). The substitute part exceeds the output current specification (75 mA versus 30 mA) and provides enhanced slew rate (20 V/µs versus 5.3 V/µs) and bandwidth (4.5 MHz versus 2.2 MHz).

Package Consideration: The TLV9151IDBVR uses a surface-mount SOT-23-5 package, requiring PCB redesign compared to the through-hole 8-DIP form factor of the TLC271ACP. This transition is necessary to access active product status and long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271ACP without circuit modifications?

A: Electrical substitution is feasible based on functional parameters. However, the TLV9151IDBVR uses a surface-mount SOT-23-5 package versus the through-hole 8-DIP package of the TLC271ACP, requiring PCB layout redesign. Pin configuration and signal routing must be verified against device datasheets before implementation.

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

A: The TLV9151IDBVR provides superior performance in slew rate (20 V/µs versus 5.3 V/µs), gain bandwidth product (4.5 MHz versus 2.2 MHz), and output current capability (75 mA versus 30 mA). The TLV9151IDBVR also features rail-to-rail output capability and lower input offset voltage (125 µV versus 900 µV). These enhancements are compatible with applications designed for the TLC271ACP.

Q: Why is the TLC271ACP designated as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of this component. Existing inventory is available for purchase, but no future production is planned. The TLV9151IDBVR is the recommended active alternative for new designs and ongoing production requirements.

Q: Are there supply voltage compatibility concerns?

A: The TLV9151IDBVR minimum supply voltage is 2.7V, which is lower than the TLC271ACP minimum of 3V. Both components support the maximum 16V supply specification. Applications operating at exactly 3V should verify TLV9151IDBVR performance at this boundary condition.

Q: What is the operating temperature range difference?

A: The TLC271ACP operates from 0°C to 70°C, while the TLV9151IDBVR operates from -40°C to 125°C. The TLV9151IDBVR provides extended temperature coverage suitable for industrial and automotive applications beyond the commercial temperature range of the TLC271ACP.

Q: How does the input bias current specification affect substitution?

A: The TLC271ACP specifies 0.7 pA input bias current, while the TLV9151IDBVR specifies 10 pA. For high-impedance input circuits, this difference may require input impedance verification. Most general-purpose applications tolerate this specification variance.