TLC27L2ACPSR Equivalent & Substitute Parts

Part Overview

The TLC27L2ACPSR is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring two independent amplifier circuits in an 8-SO surface mount package. This device is classified as a LinCMOS™ series component and is currently listed as obsolete. The obsolete status necessitates identification of functionally equivalent substitute components to maintain design continuity and support ongoing production or repair requirements.

Substiute Parts

TLC27L2ACPSR

Texas InstrumentsIn Stock: 857TLC27L2ACPSR Datasheet

Current PartRFQ

LM432MA/NOPB

Texas InstrumentsIn Stock: 894LM432MA/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC27L2ACPSR is determined by the following critical parameters:

Functional Requirements:

• Dual-channel amplifier configuration (2 circuits minimum)
• Surface mount packaging in 8-pin SOIC form factor
• Supply voltage range compatibility (minimum 3 V, maximum 16 V)
• Output current capability of 30 mA per channel
• Operating temperature range of 0°C to 70°C or broader

Electrical Compatibility:

• Input bias current specifications
• Input offset voltage specifications
• Supply current per channel
• Gain bandwidth product and slew rate characteristics

The LM432MA/NOPB qualifies as a manufacturer-recommended substitute based on matching the dual-circuit configuration, 8-SOIC package footprint, surface mount technology, and output current rating. Both components are manufactured by Texas Instruments and maintain ROHS3 compliance and MSL Level 1 ratings.

Parameter Comparison

Engineering Selection Recommendations

Compliance and Regulatory Status: Both the TLC27L2ACPSR and LM432MA/NOPB maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. Both components carry MSL Level 1 ratings, indicating unlimited shelf life under standard storage conditions.

Product Status Considerations: Both components are classified as obsolete. Selection between these parts should be based on application-specific electrical requirements and physical package constraints rather than availability or product lifecycle status.

Package Footprint Compatibility: The TLC27L2ACPSR uses an 8-SOIC package with 5.30mm width, while the LM432MA/NOPB uses an 8-SOIC package with 3.90mm width. These represent different physical footprints and require verification of PCB layout compatibility before substitution.

Electrical Performance Differences: The LM432MA/NOPB exhibits higher gain bandwidth product (1 MHz versus 110 kHz) and lower input offset voltage (600 µV versus 900 µV), but requires higher supply current (150 µA versus 20 µA per dual channels). Applications requiring low power consumption may be constrained by the LM432MA/NOPB specifications.

Frequently Asked Questions (FAQ)

Q: Can the LM432MA/NOPB directly replace the TLC27L2ACPSR on existing PCBs?

A: Direct PCB replacement is not possible without layout modification. The LM432MA/NOPB uses a narrower 8-SOIC package (3.90mm width) compared to the TLC27L2ACPSR (5.30mm width). Pin spacing and footprint geometry differ, requiring PCB redesign or adapter solutions.

Q: What are the primary electrical differences between these two amplifiers?

A: The LM432MA/NOPB provides higher bandwidth (1 MHz versus 110 kHz) and lower input offset voltage (600 µV versus 900 µV). However, it consumes significantly more supply current (150 µA versus 20 µA for dual channels). The TLC27L2ACPSR features lower input bias current (0.6 pA versus 3 nA).

Q: Are both components suitable for low-power applications?

A: The TLC27L2ACPSR is better suited for low-power designs due to its 20 µA supply current specification. The LM432MA/NOPB, with 150 µA supply current, is appropriate for applications where power consumption is not a primary constraint.

Q: What is the temperature operating range difference?

A: The TLC27L2ACPSR operates from 0°C to 70°C, while the LM432MA/NOPB operates from -40°C to 85°C. Applications requiring extended temperature range operation should use the LM432MA/NOPB.

Q: Do both components meet current environmental compliance standards?

A: Yes. Both the TLC27L2ACPSR and LM432MA/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: What supply voltage range is common to both devices?

A: Both components operate within a 3 V to 16 V supply range, with the LM432MA/NOPB supporting a lower minimum of 2.5 V. Applications using 3 V to 16 V supplies are compatible with both parts.