TLC271BCPS Equivalent & Substitute Parts

Part Overview

The TLC271BCPS 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 TLC271BCPS belongs to the LinCMOS™ series and is designed for applications requiring low-power, general-purpose amplification with a single circuit configuration.

Due to its Last Time Buy status, identifying equivalent and substitute parts is essential for design continuity and long-term product support. Substitute parts must maintain functional compatibility while accommodating differences in packaging, performance characteristics, and operating conditions.

Substiute Parts

TLC271BCPS

Texas InstrumentsIn Stock: 1495TLC271BCPS Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271BCPS is determined by the following critical parameters:

Functional Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1 circuit configuration
• Supply Voltage Range: Minimum 3V, Maximum 16V
• Output Type: Standard output (TLC271BCPS) versus Rail-to-Rail output (substitute)

Performance Characteristics:

• Slew Rate: 5.3 V/µs (TLC271BCPS baseline)
• Gain Bandwidth Product: 2.2 MHz (TLC271BCPS baseline)
• Input Bias Current: 0.7 pA (TLC271BCPS baseline)
• Input Offset Voltage: 390 µV (TLC271BCPS baseline)

Electrical Operating Parameters:

• Supply Current: 950 µA (TLC271BCPS baseline)
• Output Current per Channel: 30 mA (TLC271BCPS baseline)
• Operating Temperature: 0°C to 70°C (TLC271BCPS baseline)

Compliance & Regulatory:

• RoHS3 Compliance
• Moisture Sensitivity Level 1
• REACH Unaffected status

The TLV9151IDBVR qualifies as a substitute based on shared functional category (general-purpose amplifier, single circuit), overlapping supply voltage range (2.7V to 16V encompasses the TLC271BCPS range), and equivalent regulatory compliance. However, the substitute exhibits enhanced performance specifications and operates across an extended temperature range.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLC271BCPS carries a Last Time Buy designation, signifying end-of-life status. The TLV9151IDBVR maintains Active product status with ongoing manufacturer support and availability.

Compliance & Certification: Both devices are ROHS3 Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Both are classified under ECCN EAR99 and HTSUS 8542.33.0001, ensuring equivalent regulatory standing.

Performance Enhancement: The TLV9151IDBVR provides measurable improvements across multiple performance metrics: 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 input offset voltage decreases from 390 µV to 125 µV. Supply current is reduced from 950 µA to 560 µA, and output current capability increases from 30 mA to 75 mA.

Operating Temperature Extension: The TLV9151IDBVR extends the operating temperature range from 0°C to 70°C (TLC271BCPS) to -40°C to 125°C, accommodating broader environmental conditions.

Package Transition: The substitution requires a package change from 8-SOIC to SOT-23-5. This transition necessitates PCB layout modification and component footprint redesign. The SOT-23-5 package is smaller and more compact than the 8-SOIC package.

Supply Voltage Compatibility: The TLV9151IDBVR minimum supply voltage is 2.7V, which is lower than the TLC271BCPS minimum of 3V. The maximum supply voltage remains 16V for both devices, ensuring full compatibility within the TLC271BCPS operating range.

Frequently Asked Questions (FAQ)

Q: Can the TLV9151IDBVR directly replace the TLC271BCPS without circuit modifications?

A: Functional substitution is possible due to shared general-purpose amplifier classification and overlapping supply voltage specifications. However, the package change from 8-SOIC to SOT-23-5 requires PCB layout redesign. Pin configuration differences necessitate schematic review to ensure proper signal routing and power distribution.

Q: What are the key differences between these two devices?

A: The primary differences are package type (8-SOIC versus SOT-23-5), output configuration (standard versus rail-to-rail), and performance specifications. The TLV9151IDBVR offers higher slew rate, greater bandwidth, lower input offset voltage, reduced supply current, and extended operating temperature range. The TLC271BCPS provides lower input bias current (0.7 pA versus 10 pA).

Q: Is the TLV9151IDBVR suitable for applications requiring the TLC271BCPS input bias current specification of 0.7 pA?

A: The TLV9151IDBVR has an input bias current of 10 pA, which is higher than the TLC271BCPS specification of 0.7 pA. Applications with strict input bias current requirements may require evaluation of the impact on circuit performance.

Q: What is the significance of the 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 is advantageous in low-supply-voltage applications and provides greater dynamic range compared to standard output amplifiers.

Q: Are there any regulatory or compliance concerns with substituting the TLV9151IDBVR for the TLC271BCPS?

A: Both devices maintain equivalent regulatory compliance: ROHS3 Compliant, REACH Unaffected, and identical ECCN and HTSUS classifications. No compliance barriers exist for substitution.

Q: How does the extended operating temperature range of the TLV9151IDBVR affect substitution decisions?

A: The TLV9151IDBVR operating range of -40°C to 125°C encompasses and exceeds the TLC271BCPS range of 0°C to 70°C. This extension provides greater flexibility for applications operating in extreme temperature environments, though it does not restrict use in the narrower TLC271BCPS temperature band.

Q: What inventory considerations should be evaluated?

A: The TLC271BCPS has 1389 pieces in stock with Last Time Buy status, indicating limited future availability. The TLV9151IDBVR has 2339 pieces in stock with Active product status, ensuring ongoing supply continuity and long-term availability for production requirements.