LPC662IM/NOPB Equivalent & Substitute Parts

Part Overview

The LPC662IM/NOPB is a CMOS dual-channel 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 a slew rate of 0.11V/µs and gain bandwidth product of 350 kHz. The part is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute components is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this amplifier.

Substiute Parts

LPC662IM/NOPB

Texas InstrumentsIn Stock: 1179LPC662IM/NOPB Datasheet

Current PartRFQ

LMC6082AIMX/NOPB

Texas InstrumentsIn Stock: 2744LMC6082AIMX/NOPB Datasheet

MFR RecommendedRFQ

MAX407CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2440MAX407CSA+ Datasheet

MFR RecommendedRFQ

MAX407CSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1619MAX407CSA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the LPC662IM/NOPB is determined by the following critical parameters: package type (8-SOIC surface mount), dual-circuit configuration, rail-to-rail output capability, supply voltage range compatibility, and operating temperature range. The identified substitute parts are grouped based on their ability to meet these core requirements within the specified electrical and mechanical constraints.

Primary Substitution Criteria:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Number of Circuits: 2
• Output Type: Rail-to-Rail
• Mounting Type: Surface Mount
• Operating Temperature Range: Minimum -40°C to 85°C coverage
• Supply Voltage Range: Overlap with 4.75V to 15.5V span

The LMC6082AIMX/NOPB qualifies as a direct substitute, offering identical package geometry, dual-circuit CMOS architecture, and superior electrical performance characteristics. The MAX407CSA+ and MAX407CSA+T variants function as functional equivalents with different amplifier topology (general purpose versus CMOS) and reduced supply voltage range, requiring application-level verification of compatibility.

Parameter Comparison

Engineering Selection Recommendations

LMC6082AIMX/NOPB (Primary Substitute)

The LMC6082AIMX/NOPB is the recommended primary substitute for the LPC662IM/NOPB. Both devices are manufactured by Texas Instruments and share identical CMOS amplifier architecture with dual-circuit, push-pull, rail-to-rail output configuration. The LMC6082AIMX/NOPB maintains full compatibility with the 8-SOIC package footprint and operating temperature range (-40°C to 85°C). The substitute part is in Active product status, ensuring long-term availability. Both parts are ROHS3 compliant with MSL 1 rating. The LMC6082AIMX/NOPB offers enhanced electrical performance with higher slew rate (1.5V/µs versus 0.11V/µs) and gain bandwidth product (1.3 MHz versus 350 kHz), lower input offset voltage (150 µV versus 1 mV), and reduced input bias current (0.01 pA versus 0.002 pA). Supply voltage range compatibility is maintained (4.5V to 15.5V for LMC6082AIMX/NOPB versus 4.75V to 15.5V for LPC662IM/NOPB).

MAX407CSA+ and MAX407CSA+T (Functional Equivalents)

The MAX407CSA+ and MAX407CSA+T are functional equivalents manufactured by Analog Devices Inc./Maxim Integrated. Both parts maintain the 8-SOIC package geometry and dual-circuit configuration with rail-to-rail output. These devices are in Active product status. However, critical differences exist: the MAX407 series uses general purpose amplifier topology rather than CMOS architecture, operates within a reduced supply voltage range (2.5V to 10V versus 4.75V to 15.5V), and has a narrower operating temperature range (0°C to 70°C versus -40°C to 85°C). Output current capability is significantly lower (600 µA per channel versus 40 mA). These parts are suitable only for applications where the reduced supply voltage range, narrower temperature range, and lower output current do not conflict with design requirements.

Frequently Asked Questions (FAQ)

Q1: Can the LMC6082AIMX/NOPB directly replace the LPC662IM/NOPB without circuit modifications?

A: The LMC6082AIMX/NOPB is pin-compatible and functionally compatible with the LPC662IM/NOPB in the 8-SOIC package. Both devices feature identical dual-circuit CMOS architecture with push-pull, rail-to-rail output. No circuit modifications are required for package or pinout compatibility. However, the enhanced electrical performance characteristics (higher slew rate, gain bandwidth product, and lower offset voltage) may affect circuit behavior in applications with tight timing or precision requirements. Circuit-level validation is appropriate for critical applications.

Q2: What are the key differences between the LMC6082AIMX/NOPB and MAX407CSA+ substitutes?

A: The LMC6082AIMX/NOPB maintains CMOS amplifier topology identical to the LPC662IM/NOPB, while the MAX407CSA+ uses general purpose amplifier architecture. The LMC6082AIMX/NOPB supports the full supply voltage range (4.5V to 15.5V) and extended operating temperature range (-40°C to 85°C), whereas the MAX407CSA+ is limited to 2.5V to 10V supply and 0°C to 70°C temperature range. Output current per channel is 34 mA for LMC6082AIMX/NOPB versus 600 µA for MAX407CSA+. The LMC6082AIMX/NOPB is the preferred substitute for applications requiring the original performance envelope.

Q3: Are the MAX407CSA+ and MAX407CSA+T electrically identical?

A: The MAX407CSA+ and MAX407CSA+T are electrically identical general purpose dual-channel amplifiers in 8-SOIC packages. Both devices share identical electrical specifications including slew rate (0.005V/µs), gain bandwidth product (8 kHz), supply voltage range (2.5V to 10V), and operating temperature range (0°C to 70°C). The primary distinction is packaging format: MAX407CSA+ is supplied in Tube packaging, while MAX407CSA+T packaging designation differs. Both are ROHS3 compliant with MSL 1 rating and Active product status.

Q4: What supply voltage considerations apply when substituting the LPC662IM/NOPB?

A: The LPC662IM/NOPB operates across 4.75V to 15.5V supply range. The LMC6082AIMX/NOPB substitute supports 4.5V to 15.5V, providing full compatibility with a slightly lower minimum threshold. The MAX407CSA+ and MAX407CSA+T are limited to 2.5V to 10V supply range, restricting their use to applications operating within this narrower window. Applications requiring supply voltages above 10V must use the LMC6082AIMX/NOPB substitute.

Q5: Are all substitute parts RoHS compliant?

A: All identified substitute parts—LMC6082AIMX/NOPB, MAX407CSA+, and MAX407CSA+T—are ROHS3 compliant. The original LPC662IM/NOPB is also ROHS3 compliant. All parts carry MSL 1 (Unlimited) moisture sensitivity level rating. REACH status is unaffected for all parts, and ECCN classification is EAR99 for all devices.

Q6: What is the operating temperature range compatibility for substitution?

A: The LPC662IM/NOPB operates across -40°C to 85°C. The LMC6082AIMX/NOPB maintains identical temperature range (-40°C to 85°C), ensuring full compatibility for extended temperature applications. The MAX407CSA+ and MAX407CSA+T operate only across 0°C to 70°C, which is insufficient for applications requiring the full -40°C to 85°C range. Applications operating below 0°C or above 70°C must use the LMC6082AIMX/NOPB substitute.