TLC27L2CPS Equivalent & Substitute Parts

Part Overview

The TLC27L2CPS is a CMOS dual-channel linear amplifier manufactured by Texas Instruments, housed in an 8-SO surface mount package. This device operates across a 3V to 16V supply range with low input bias current (0.6 pA) and minimal input offset voltage (1.1 mV), making it suitable for precision signal conditioning applications. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute components is essential for design continuity, inventory management, and long-term product support.

Substiute Parts

TLC27L2CPS

Texas InstrumentsIn Stock: 3176TLC27L2CPS Datasheet

Current PartRFQ

TLC27L2CDR

Texas InstrumentsIn Stock: 105247TLC27L2CDR Datasheet

MFR RecommendedRFQ

LM432MA/NOPB

Texas InstrumentsIn Stock: 894LM432MA/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC27L2CPS is determined by the following critical parameters:

Primary Substitution Criteria:

• Amplifier Type: CMOS
• Number of Circuits: 2
• Slew Rate: 0.03 V/µs
• Gain Bandwidth Product: 110 kHz
• Current - Input Bias: 0.6 pA
• Voltage - Input Offset: 1.1 mV
• Current - Supply: 20 µA (x2 Channels)
• Current - Output / Channel: 30 mA
• Voltage - Supply Span: 3V to 16V
• Operating Temperature: 0°C to 70°C
• Mounting Type: Surface Mount
• Package Compatibility: 8-SOIC pinout

Substitute Parts Identified:

TLC27L2CDR (Texas Instruments, Active Status): Functionally equivalent CMOS dual amplifier with identical electrical specifications. Differs only in packaging format (Cut Tape & Digi-Reel vs. Tube) and package dimensions (8-SOIC 0.154" vs. 0.209" width). Electrical performance is fully compatible.

LM432MA/NOPB (Texas Instruments, Obsolete Status): General Purpose amplifier with different electrical characteristics. Gain Bandwidth Product is 1 MHz (vs. 110 kHz), Input Bias Current is 3 nA (vs. 0.6 pA), and supply current is 150 µA per channel (vs. 20 µA). Operating temperature range extends to -40°C to 85°C. This part does not meet the primary substitution criteria for CMOS amplifier type and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

TLC27L2CDR is the primary recommended substitute for TLC27L2CPS. Both devices are manufactured by Texas Instruments and share identical electrical specifications across all critical parameters: CMOS amplifier type, dual-channel configuration, 110 kHz gain bandwidth product, 0.6 pA input bias current, and 20 µA supply current per channel. The TLC27L2CDR maintains full compatibility with the original design while offering the advantage of Active product status, ensuring continued availability and manufacturing support. The only physical difference is package width (0.154" vs. 0.209"), which does not affect electrical performance or pinout compatibility. Both parts are ROHS3 compliant with MSL 1 rating.

LM432MA/NOPB is not recommended as a direct substitute. Although it shares the same 8-SOIC package footprint and dual-channel configuration, it exhibits significant electrical differences: General Purpose amplifier type (not CMOS), 1 MHz gain bandwidth product (9x higher than required), 3 nA input bias current (5000x higher than required), and 150 µA supply current per channel (7.5x higher than required). The LM432MA/NOPB is also classified as Obsolete, making it unsuitable for new designs or long-term inventory planning.

Frequently Asked Questions (FAQ)

Q: Can TLC27L2CDR be used as a direct replacement for TLC27L2CPS?

A: Yes. The TLC27L2CDR is electrically equivalent to the TLC27L2CPS across all specified parameters. Both are CMOS dual amplifiers with identical slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current specifications. The primary difference is packaging format (Cut Tape & Digi-Reel vs. Tube) and package width dimension. Pinout and electrical performance are fully compatible.

Q: What is the significance of the package width difference between TLC27L2CPS (0.209") and TLC27L2CDR (0.154")?

A: The package width difference reflects different 8-SOIC body styles. The TLC27L2CPS uses a wider body variant, while TLC27L2CDR uses the standard narrow body. Both maintain identical pin spacing and pinout configuration. PCB layout compatibility depends on the specific footprint design; however, the narrower package of TLC27L2CDR can be accommodated in footprints designed for the wider variant with appropriate layout adjustment.

Q: Why is LM432MA/NOPB listed as a substitute if it has different electrical specifications?

A: LM432MA/NOPB is listed in the original substitute field but does not meet the primary substitution criteria for the TLC27L2CPS. It is a General Purpose amplifier with significantly different electrical characteristics (1 MHz vs. 110 kHz bandwidth, 3 nA vs. 0.6 pA input bias current, 150 µA vs. 20 µA supply current). Additionally, LM432MA/NOPB is classified as Obsolete. This part should not be selected for applications requiring CMOS amplifier specifications or for new designs.

Q: What compliance certifications apply to substitute parts?

A: Both TLC27L2CDR and LM432MA/NOPB are ROHS3 compliant and REACH unaffected. Both carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling. All parts share the same ECCN (EAR99) and HTSUS (8542.33.0001) classifications.

Q: Is TLC27L2CDR available in higher volume quantities?

A: Yes. TLC27L2CDR inventory is significantly higher (105,200 pcs) compared to TLC27L2CPS (3,080 pcs), reflecting its Active product status. This availability advantage supports both immediate procurement needs and long-term supply chain planning.

Q: What is the operating temperature range consideration for substitution?

A: Both TLC27L2CPS and TLC27L2CDR operate across 0°C to 70°C. If your application requires extended temperature operation, neither part is suitable. LM432MA/NOPB extends to -40°C to 85°C, but its different electrical specifications make it unsuitable for direct substitution in designs optimized for CMOS amplifier characteristics.