TLC271CPSR Equivalent & Substitute Parts

Part Overview

The TLC271CPSR is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. This device is classified as a LinCMOS™ series amplifier with a single circuit configuration and is currently designated as Last Time Buy status. The TLC271CPSR operates across a supply voltage range of 3V to 16V and is suitable for applications requiring low-power amplification in the 0°C to 70°C temperature range.

Identification of equivalent and substitute parts becomes necessary when the TLC271CPSR reaches end-of-life status, when inventory constraints occur, or when design requirements necessitate enhanced performance characteristics such as extended temperature range, improved slew rate, or rail-to-rail output capability.

Substiute Parts

TLC271CPSR

Texas InstrumentsIn Stock: 2070TLC271CPSR Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271CPSR is determined by functional equivalence across the following critical parameters:

Functional Compatibility Criteria:

• Amplifier Type: General Purpose (single-circuit configuration)
• Supply Voltage Range: Minimum 3V, Maximum 16V (overlapping operational envelope)
• Mounting Type: Surface Mount technology
• Compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification

Performance Consideration Parameters:

• Slew Rate: Minimum 5.3 V/µs
• Gain Bandwidth Product: Minimum 2.2 MHz
• Input Bias Current: Maximum 0.7 pA
• Input Offset Voltage: Maximum 1.1 mV
• Output Current Capability: Minimum 30 mA per channel
• Supply Current: Maximum 950 µA

The TLV9151IDBVR qualifies as a substitute part because it maintains general-purpose amplifier functionality, operates within the required supply voltage range (2.7V to 16V), and exceeds the minimum performance thresholds for slew rate, gain bandwidth product, and output current capability. The TLV9151IDBVR offers enhanced specifications including rail-to-rail output capability and extended operating temperature range (-40°C to 125°C), making it suitable for applications with more demanding environmental or performance requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLC271CPSR is designated Last Time Buy, indicating imminent discontinuation. The TLV9151IDBVR maintains Active product status with current manufacturing support and inventory availability (2339 Pcs in stock versus 2000 Pcs for the TLC271CPSR).

Compliance and Certification: Both parts maintain identical compliance profiles: ROHS3 Compliant, REACH Unaffected, EAR99 classification, and MSL 1 (Unlimited) moisture sensitivity rating. No regulatory barriers exist for substitution.

Performance Envelope: The TLV9151IDBVR operates within the electrical specifications required by applications designed for the TLC271CPSR. All critical performance parameters either match or exceed the original part specifications. The substitute part delivers superior slew rate (20 V/µs versus 5.3 V/µs), higher gain bandwidth product (4.5 MHz versus 2.2 MHz), and greater output current capability (75 mA versus 30 mA).

Package and Mounting: The TLC271CPSR uses 8-SOIC packaging while the TLV9151IDBVR uses SOT-23-5 packaging. These are physically distinct packages requiring PCB layout modifications. Direct socket substitution is not possible without redesign.

Temperature Range: The TLV9151IDBVR extends the operating temperature range to -40°C to 125°C, providing enhanced environmental capability compared to the 0°C to 70°C range of the TLC271CPSR.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR be used as a direct replacement for the TLC271CPSR without PCB modifications?

A: No. The TLC271CPSR uses an 8-SOIC package while the TLV9151IDBVR uses a SOT-23-5 package. These packages have different pin configurations and physical dimensions. PCB layout redesign is required for substitution.

Q: What are the key electrical differences between these parts?

A: The TLV9151IDBVR provides enhanced performance across multiple parameters: slew rate increases from 5.3 V/µs to 20 V/µs, gain bandwidth product increases from 2.2 MHz to 4.5 MHz, and output current capability increases from 30 mA to 75 mA. The substitute also features rail-to-rail output capability and lower supply current (560 µA versus 950 µA).

Q: Is the TLV9151IDBVR compatible with the same supply voltage range?

A: The TLV9151IDBVR operates from 2.7V to 16V, which overlaps with the TLC271CPSR range of 3V to 16V. The substitute part can operate at slightly lower minimum supply voltages (2.7V versus 3V).

Q: What is the significance of the Last Time Buy status for the TLC271CPSR?

A: Last Time Buy designation indicates that the manufacturer will discontinue production. Existing inventory will be depleted without replenishment. Designs currently using the TLC271CPSR should transition to alternative parts such as the TLV9151IDBVR to ensure long-term component availability.

Q: Does the extended operating temperature range of the TLV9151IDBVR affect its use in applications designed for 0°C to 70°C operation?

A: No. The TLV9151IDBVR is fully functional across the 0°C to 70°C range and maintains all specified electrical characteristics within this envelope. The extended temperature capability (-40°C to 125°C) provides additional operational flexibility without compromising performance in standard temperature applications.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts maintain identical compliance status: ROHS3 Compliant, REACH Unaffected, EAR99 classification, and MSL 1 moisture sensitivity rating. No regulatory barriers exist for substitution.

Q: What is the input offset voltage difference, and does it matter?

A: The TLC271CPSR has 1.1 mV input offset voltage while the TLV9151IDBVR has 125 µV. The substitute part provides superior offset voltage performance, which benefits precision amplification applications requiring lower DC error.