TLC271BCDR Equivalent & Substitute Parts

Part Overview

The TLC271BCDR 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 LinCMOS™ series design provides low input bias current and operates across a 3V to 16V supply range with an operating temperature span of 0°C to 70°C.

Due to the Last Time Buy status of the TLC271BCDR, identifying equivalent and substitute parts is necessary for design continuity and long-term component availability. Substitute parts must maintain functional compatibility within the specified electrical and mechanical parameters while considering package form factor and performance characteristics.

Substiute Parts

TLC271BCDR

Texas InstrumentsIn Stock: 2128TLC271BCDR Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

TLC27L1CS-13

Diodes IncorporatedIn Stock: 3636TLC27L1CS-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271BCDR is determined by compatibility across the following critical parameters:

Functional Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Supply Voltage Range: Minimum 3V, Maximum 16V
• Output Current Capability: Minimum 30 mA per channel
• Input Bias Current: Maximum 0.7 pA
• Operating Temperature Range: Minimum 0°C to 70°C coverage
• Mounting Type: Surface Mount
• RoHS3 Compliance and MSL Level 1 status

Package Considerations: The TLC271BCDR uses an 8-SOIC package. Substitute parts may employ alternative surface mount packages (such as SOT-23-5) provided they maintain electrical compatibility and are suitable for the application's physical constraints.

Performance Parameters: While slew rate and gain bandwidth product are provided specifications, substitutes may exceed these values without compromising compatibility. Input offset voltage and supply current are secondary considerations when primary electrical parameters are met.

Parameter Comparison

Engineering Selection Recommendations

TLV9151IDBVR (Texas Instruments)

The TLV9151IDBVR is an active product offering enhanced performance specifications compared to the TLC271BCDR. This device provides a higher slew rate (20V/µs versus 5.3V/µs) and greater gain bandwidth product (4.5 MHz versus 2.2 MHz). The TLV9151IDBVR features rail-to-rail output capability and operates across an extended temperature range (-40°C to 125°C). Output current capability is increased to 75 mA per channel. The device is housed in a SOT-23-5 package, which differs from the 8-SOIC form factor of the original part. Both devices maintain ROHS3 compliance and MSL Level 1 status. The TLV9151IDBVR is suitable for applications requiring improved dynamic performance and extended operating temperature specifications.

TLC27L1CS-13 (Diodes Incorporated)

The TLC27L1CS-13 maintains the same 8-SOIC package form factor as the TLC271BCDR, enabling direct physical compatibility in existing PCB layouts. This device is manufactured by Diodes Incorporated and is classified as an active product. The TLC27L1CS-13 exhibits significantly lower supply current consumption (14µA versus 950µA), making it advantageous for power-constrained applications. However, this device exhibits reduced slew rate (0.04V/µs) and substantially lower gain bandwidth product (110 kHz). Input offset voltage is higher at 10 mV. The TLC27L1CS-13 maintains the same supply voltage range (3V to 16V) and output current capability (30 mA) as the original part. Both devices are ROHS3 compliant with MSL Level 1 status. The TLC27L1CS-13 is suitable for low-power applications where reduced bandwidth requirements are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271BCDR in existing designs?

A: The TLV9151IDBVR provides functional substitution with enhanced electrical performance. However, the package form factor differs (SOT-23-5 versus 8-SOIC), requiring PCB layout modifications. Pin configuration must be verified before implementation. The extended operating temperature range (-40°C to 125°C) and improved slew rate make this device suitable for applications requiring higher performance specifications.

Q: What are the advantages of the TLC27L1CS-13 as a substitute?

A: The TLC27L1CS-13 maintains the same 8-SOIC package as the TLC271BCDR, allowing direct physical substitution without PCB redesign. This device offers significantly reduced supply current consumption (14µA), beneficial for battery-powered or low-power applications. The supply voltage range (3V to 16V) and output current capability (30 mA) remain identical to the original part.

Q: Are there performance trade-offs when using the TLC27L1CS-13?

A: Yes. The TLC27L1CS-13 exhibits lower slew rate (0.04V/µs versus 5.3V/µs) and reduced gain bandwidth product (110 kHz versus 2.2 MHz). Input offset voltage is substantially higher at 10 mV. These characteristics make the TLC27L1CS-13 unsuitable for applications requiring high-speed signal processing or precision amplification. Selection should be based on application bandwidth requirements.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. Both the TLV9151IDBVR and TLC27L1CS-13 are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the TLC271BCDR.

Q: What is the significance of the Last Time Buy status for the TLC271BCDR?

A: Last Time Buy status indicates that the TLC271BCDR is no longer in active production and will not be manufactured beyond a specified date. Existing inventory is available, but long-term component availability cannot be assured. Designs should transition to active product alternatives such as the TLV9151IDBVR or TLC27L1CS-13 for future production requirements.

Q: How should package differences be evaluated when selecting a substitute?

A: Package selection depends on PCB layout constraints and design flexibility. The TLC27L1CS-13 maintains the 8-SOIC form factor, enabling direct substitution without layout changes. The TLV9151IDBVR uses SOT-23-5 packaging, which is smaller but requires PCB redesign. Evaluate available board space, routing requirements, and thermal considerations when making this determination.

Q: Are the supply voltage ranges compatible across all three devices?

A: The TLC271BCDR and TLC27L1CS-13 both operate from 3V to 16V. The TLV9151IDBVR operates from 2.7V to 16V, providing slightly lower minimum supply voltage capability. All three devices are compatible with standard 5V and 12V supply rails commonly used in industrial and consumer applications.