LPC662AIM CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The LPC662AIM is a dual-channel CMOS operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features push-pull, rail-to-rail output configuration with low input bias current and is designed for general-purpose analog signal conditioning applications. The LPC662AIM currently holds Last Time Buy status, indicating discontinued production. Identifying qualified substitute components is essential for design continuity and long-term supply chain management.

Substiute Parts

LPC662AIM

Texas InstrumentsIn Stock: 2801LPC662AIM Datasheet

Current PartRFQ

LMC6082AIMX/NOPB

Texas InstrumentsIn Stock: 2744LMC6082AIMX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LPC662AIM is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width) to ensure direct PCB footprint compatibility without layout modifications.

Functional Architecture: The substitute must provide dual-channel (2 circuits) CMOS amplifier configuration with push-pull, rail-to-rail output capability to maintain circuit performance characteristics.

Supply Voltage Range: The substitute must operate within the specified supply voltage envelope. The LPC662AIM operates from 4.75V to 15.5V. A substitute with a minimum supply voltage of 4.5V or lower and maximum of 15.5V or higher remains compatible with existing power distribution designs.

Temperature Rating: Operating temperature range of -40°C to 85°C (TJ) is required for equivalent thermal performance in the specified application environment.

Compliance Standards: RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity are mandatory for supply chain and manufacturing process compatibility.

The LMC6082AIMX/NOPB meets all substitution criteria while offering enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LPC662AIM is designated Last Time Buy, indicating end-of-life status with no future production. The LMC6082AIMX/NOPB maintains Active product status with ongoing manufacturer support and availability, making it the appropriate long-term solution for new designs and production continuity.

Compliance Alignment: Both components are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with current manufacturing processes and supply chain requirements. Both are classified under ECCN EAR99 and HTSUS 8542.33.0001 for regulatory purposes.

Package and Mounting Compatibility: Identical 8-SOIC package specifications enable direct PCB footprint compatibility without layout redesign. Surface mount configuration remains consistent between both parts.

Functional Equivalence: Both devices provide dual-channel CMOS amplifier architecture with push-pull, rail-to-rail output in the same physical package. Supply voltage range compatibility (LMC6082AIMX/NOPB minimum of 4.5V accommodates LPC662AIM requirement of 4.75V minimum) ensures operation within existing power distribution designs.

Performance Characteristics: The LMC6082AIMX/NOPB exhibits superior dynamic performance with 1.5V/µs slew rate versus 0.11V/µs, and 1.3MHz gain bandwidth product versus 350kHz. Input offset voltage is reduced to 150µV from 1mV. These enhancements provide improved signal fidelity in time-sensitive applications. Supply current increases from 86µA to 1.1mA per dual-channel configuration, requiring power budget evaluation in battery-powered or low-power designs.

Frequently Asked Questions (FAQ)

Q: Can the LMC6082AIMX/NOPB be used as a direct replacement for the LPC662AIM without PCB modifications?

A: Yes. Both components use identical 8-SOIC package dimensions (0.154", 3.90mm Width) with surface mount configuration. PCB footprints are directly compatible without layout changes.

Q: What are the key electrical differences between these two parts?

A: The LMC6082AIMX/NOPB provides enhanced performance: slew rate of 1.5V/µs (versus 0.11V/µs), gain bandwidth product of 1.3MHz (versus 350kHz), and reduced input offset voltage of 150µV (versus 1mV). Supply current per dual-channel increases from 86µA to 1.1mA. Both maintain identical supply voltage range compatibility and output current capability.

Q: Are there any supply voltage compatibility issues?

A: No. The LMC6082AIMX/NOPB operates from 4.5V minimum to 15.5V maximum, which encompasses the LPC662AIM requirement of 4.75V to 15.5V. Existing power supply designs require no modification.

Q: Does the increased supply current of the LMC6082AIMX/NOPB affect circuit design?

A: The LMC6082AIMX/NOPB draws 1.1mA total supply current (dual-channel) compared to 86µA for the LPC662AIM. In low-power or battery-powered applications, this 12.8x increase requires power budget reassessment. In standard AC-powered designs, this increase is typically negligible.

Q: Are both parts RoHS compliant?

A: Yes. Both the LPC662AIM and LMC6082AIMX/NOPB are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current environmental and manufacturing standards.

Q: Why is the LPC662AIM designated Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. The LMC6082AIMX/NOPB, with Active product status, represents the current production alternative for ongoing supply assurance and design continuity.

Q: Can the LMC6082AIMX/NOPB be used in existing designs without circuit redesign?

A: Pin-for-pin compatibility and identical package configuration enable direct substitution. However, the superior slew rate and bandwidth characteristics may require circuit validation in applications sensitive to these performance parameters. Output current capability (34mA versus 40mA) should be verified for load-dependent circuits.