TLC27M2CPSR CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TLC27M2CPSR is a dual-channel CMOS amplifier manufactured by Texas Instruments, classified as a LinCMOS™ series linear amplifier in 8-SO surface mount packaging. This component is designated as Last Time Buy status, indicating limited availability and the necessity to identify equivalent substitute parts for ongoing design requirements and production planning.

The TLC27M2CPSR provides low-power CMOS amplification with dual independent circuits suitable for applications requiring low input bias current and low supply current consumption. Due to its Last Time Buy status, alternative parts with compatible electrical and mechanical specifications are essential for long-term component sourcing and design continuity.

Substiute Parts

TLC27M2CPSR

Texas InstrumentsIn Stock: 3690TLC27M2CPSR Datasheet

Current PartRFQ

TLC27M2CDR

Texas InstrumentsIn Stock: 55149TLC27M2CDR Datasheet

MFR RecommendedRFQ

LM432MA/NOPB

Texas InstrumentsIn Stock: 894LM432MA/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC27M2CPSR are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following allowed parameters:

Electrical Compatibility Criteria:

• Amplifier Type: CMOS classification
• Number of Circuits: Dual-channel (2 circuits)
• Slew Rate: 0.62 V/µs
• Gain Bandwidth Product: 635 kHz
• Current - Input Bias: 0.7 pA
• Voltage - Input Offset: 1.1 mV
• Current - Supply: 285 µA (x2 Channels)
• Current - Output / Channel: 30 mA
• Voltage - Supply Span: 3 V to 16 V
• Operating Temperature: 0°C to 70°C

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package Classification: 8-SOIC family
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must maintain identical electrical performance specifications and compatible package footprints within the 8-SOIC family to ensure direct functional replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

TLC27M2CDR (Primary Substitute)

The TLC27M2CDR is the manufacturer-recommended substitute for the TLC27M2CPSR. This part maintains identical electrical specifications across all critical parameters: CMOS amplifier type, dual-channel configuration, 0.62 V/µs slew rate, 635 kHz gain bandwidth product, 0.7 pA input bias current, 1.1 mV input offset voltage, 285 µA supply current, and 3 V to 16 V supply voltage range. Both parts share the same base product number (TLC27M2) and LinCMOS™ series classification.

The TLC27M2CDR differs in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and package width (0.154" versus 0.209"), but both are 8-SOIC surface mount packages with compatible footprints. The TLC27M2CDR holds Active product status with significantly higher inventory availability (55,100 pieces), ensuring long-term supply continuity. Both parts are ROHS3 compliant with MSL 1 rating.

LM432MA/NOPB (Secondary Substitute)

The LM432MA/NOPB is a general-purpose amplifier classified as an alternative substitute. While it maintains the dual-channel 8-SOIC configuration and 30 mA output current per channel, it differs in amplifier type classification (General Purpose versus CMOS) and several electrical parameters. The LM432MA/NOPB exhibits higher gain bandwidth product (1 MHz versus 635 kHz), lower input bias current (3 nA versus 0.7 pA), lower input offset voltage (600 µV versus 1.1 mV), and lower supply current (150 µA versus 285 µA). It supports a lower minimum supply voltage (2.5 V versus 3 V) and wider operating temperature range (-40°C to 85°C versus 0°C to 70°C).

The LM432MA/NOPB is designated Obsolete status with limited inventory (869 pieces) and is not recommended for new designs requiring long-term component availability. This part is suitable only for legacy system maintenance or applications where the electrical parameter differences provide functional advantages.

Frequently Asked Questions (FAQ)

Q1: Can the TLC27M2CDR directly replace the TLC27M2CPSR without PCB modifications?

The TLC27M2CDR and TLC27M2CPSR share identical electrical specifications and both use 8-SOIC surface mount packaging. However, the package width differs: TLC27M2CPSR uses 0.209" (5.30mm) width, while TLC27M2CDR uses 0.154" (3.90mm) width. PCB footprint compatibility must be verified before substitution. If the PCB is designed for the wider 0.209" package, the narrower 0.154" package may not align properly with the existing footprint. Consult PCB layout documentation to confirm compatibility.

Q2: What are the key electrical parameters that define substitution eligibility?

Substitution eligibility is determined by the following electrical parameters: amplifier type (CMOS), number of circuits (2), slew rate (0.62 V/µs), gain bandwidth product (635 kHz), input bias current (0.7 pA), input offset voltage (1.1 mV), supply current (285 µA for dual channels), output current per channel (30 mA), and supply voltage range (3 V to 16 V). All substitute parts must match these specifications to ensure functional equivalence.

Q3: Why is the TLC27M2CDR recommended over the LM432MA/NOPB?

The TLC27M2CDR is the manufacturer-recommended substitute because it maintains identical electrical specifications to the TLC27M2CPSR across all critical parameters. The TLC27M2CDR holds Active product status with high inventory availability, ensuring reliable long-term sourcing. The LM432MA/NOPB, while functionally similar, is classified as Obsolete with limited inventory and exhibits different electrical characteristics (higher bandwidth, lower bias current, lower supply current). The LM432MA/NOPB is suitable only for legacy applications where these parameter differences are acceptable.

Q4: Are there compliance or certification differences between the substitute parts?

All three parts (TLC27M2CPSR, TLC27M2CDR, and LM432MA/NOPB) are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level). All parts carry the same ECCN (EAR99) and HTSUS (8542.33.0001) classifications. Compliance and certification status are equivalent across all substitute options.

Q5: What is the impact of the different package widths on component placement?

The TLC27M2CPSR uses an 8-SOIC package with 0.209" (5.30mm) width, while the TLC27M2CDR uses 0.154" (3.90mm) width. Both are standard 8-SOIC configurations but with different body widths. If the PCB footprint is designed for the wider package, the narrower substitute will not fit properly. Conversely, if the PCB is designed for the narrower package, the wider part will not fit. PCB layout verification is mandatory before substitution.

Q6: Can the LM432MA/NOPB be used in applications designed for the TLC27M2CPSR?

The LM432MA/NOPB can be used only if the application tolerates the electrical parameter differences. The LM432MA/NOPB provides higher gain bandwidth product (1 MHz versus 635 kHz), lower input bias current (3 nA versus 0.7 pA), lower input offset voltage (600 µV versus 1.1 mV), and lower supply current (150 µA versus 285 µA). These differences may improve performance in some applications but may introduce incompatibility in designs that depend on the specific CMOS characteristics and electrical parameters of the TLC27M2CPSR. Circuit-level analysis is required to confirm functional compatibility.