TLC272CPSR Equivalent & Substitute Parts

Part Overview

The TLC272CPSR is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, part of the LinCMOS™ series. This device integrates two independent amplifier circuits in an 8-SO surface mount package and operates across a 3V to 16V supply voltage range. The TLC272CPSR is designated as Last Time Buy, indicating discontinued production with limited inventory availability. Identifying equivalent and substitute parts is essential for design continuity, long-term sourcing strategy, and production planning when original inventory becomes depleted.

Substiute Parts

TLC272CPSR

Texas InstrumentsIn Stock: 2304TLC272CPSR Datasheet

Current PartRFQ

TLC272CDR

Texas InstrumentsIn Stock: 105179TLC272CDR Datasheet

MFR RecommendedRFQ

LM432MA/NOPB

Texas InstrumentsIn Stock: 894LM432MA/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC272CPSR is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier Type: CMOS technology
• Number of Circuits: 2 independent channels
• Slew Rate: 5.3 V/µs minimum
• Gain Bandwidth Product: 2.2 MHz minimum
• Input Bias Current: 0.7 pA maximum
• Input Offset Voltage: 1.1 mV maximum
• Supply Current: 1.9 mA per channel maximum
• Output Current: 30 mA per channel minimum
• Supply Voltage Range: 3V to 16V operation

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package Configuration: 8-pin SOIC variants
• Pin Count: 8 pins

Compliance Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must maintain electrical performance within these specified ranges and support the same supply voltage envelope. Package variations (8-SO versus 8-SOIC) are acceptable provided pin assignments and footprint compatibility are verified for the specific application.

Parameter Comparison

Engineering Selection Recommendations

TLC272CDR (Primary Substitute)

The TLC272CDR is the recommended substitute for the TLC272CPSR. Both devices share identical electrical specifications across all critical parameters: CMOS amplifier type, dual-channel configuration, 5.3 V/µs slew rate, 2.2 MHz gain bandwidth product, 0.7 pA input bias current, and 1.1 mV input offset voltage. The TLC272CDR maintains the same supply voltage range (3V to 16V) and output current capability (30 mA per channel). The primary difference is package geometry: TLC272CDR uses an 8-SOIC package with 0.154" width (3.90mm) compared to the TLC272CPSR's 0.209" width (5.30mm). Both packages are 8-pin SOIC variants with compatible pin assignments. The TLC272CDR holds Active product status with significantly higher inventory availability (105,100 pieces), ensuring long-term supply continuity. Both devices are ROHS3 Compliant with MSL 1 rating.

LM432MA/NOPB (Limited Compatibility)

The LM432MA/NOPB is a General Purpose amplifier that does not meet the electrical specifications required for direct substitution. While it maintains the same dual-channel configuration and 30 mA output current per channel, it exhibits substantially different electrical characteristics: 1 MHz gain bandwidth product (versus 2.2 MHz), 3 nA input bias current (versus 0.7 pA), and 150 µA supply current per channel (versus 1.9 mA). The LM432MA/NOPB operates across a wider temperature range (-40°C to 85°C) and lower minimum supply voltage (2.5V), but these advantages do not compensate for the degraded CMOS performance metrics. The device is designated Obsolete, limiting future availability. Use of LM432MA/NOPB requires full circuit re-evaluation and performance validation.

Frequently Asked Questions (FAQ)

Q: Can TLC272CDR directly replace TLC272CPSR without PCB modification?

A: Electrical substitution is direct. Pin assignments are identical. However, package geometry differs: TLC272CDR uses a narrower 8-SOIC footprint (0.154" width, 3.90mm) versus TLC272CPSR (0.209" width, 5.30mm). PCB footprint compatibility must be verified. If the PCB is designed for the wider 0.209" package, the narrower 0.154" package will not fit without layout modification.

Q: What are the key electrical differences between TLC272CPSR and LM432MA/NOPB?

A: The LM432MA/NOPB is a General Purpose amplifier with significantly reduced performance: 1 MHz bandwidth (versus 2.2 MHz), 3000 pA input bias current (versus 0.7 pA), and 150 µA supply current (versus 1.9 mA). These differences make it unsuitable for applications requiring the CMOS precision and bandwidth of the TLC272CPSR. Additionally, LM432MA/NOPB is Obsolete.

Q: Why is TLC272CPSR designated Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production. Existing inventory is limited (2,283 pieces). New designs should transition to TLC272CDR, which is Active and has substantially higher inventory (105,100 pieces).

Q: Are there temperature range limitations when substituting TLC272CDR for TLC272CPSR?

A: Both devices operate across 0°C to 70°C. No temperature range adjustment is required. The LM432MA/NOPB operates -40°C to 85°C, but this wider range does not offset its inferior electrical specifications.

Q: What compliance certifications apply to all three parts?

A: All three devices are ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. ECCN classification is EAR99 for all parts.

Q: Can LM432MA/NOPB be used in high-precision applications designed for TLC272CPSR?

A: No. The LM432MA/NOPB exhibits 4,286 times higher input bias current (3 nA versus 0.7 pA) and 50% lower bandwidth (1 MHz versus 2.2 MHz). Applications requiring CMOS precision, low input bias current, or higher bandwidth will not function correctly with LM432MA/NOPB. Full circuit redesign and validation would be required.