LPC660AIMX Equivalent & Substitute Parts

Part Overview

The LPC660AIMX is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-SOIC surface mount package. This device is designed for applications requiring push-pull, rail-to-rail output operation with low input bias current and moderate bandwidth characteristics. The LPC660AIMX is classified as obsolete, necessitating identification of active substitute components for new designs and ongoing production requirements. Equivalent parts must maintain functional compatibility across packaging, pin configuration, and electrical performance parameters.

Substiute Parts

LPC660AIMX

Texas InstrumentsIn Stock: 2739LPC660AIMX Datasheet

Current PartRFQ

MAX4395ESD+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3115MAX4395ESD+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPC660AIMX is determined by the following critical parameters:

Package Compatibility: The substitute part must utilize the 14-SOIC surface mount package with identical pin pitch and physical dimensions (0.154", 3.90mm width) to ensure direct board-level compatibility without layout modifications.

Circuit Configuration: The substitute must contain four independent amplifier circuits to match the quad-channel architecture of the original device.

Output Architecture: Rail-to-rail output capability is required to maintain voltage swing characteristics across the specified supply voltage range.

Supply Voltage Range: The substitute must operate within or encompass the 4.75 V to 15.5 V supply span of the original part.

Mounting Technology: Surface mount technology is mandatory for compatibility with existing printed circuit board designs.

Environmental Specifications: Operating temperature range of -40°C to 85°C must be supported.

The MAX4395ESD+T qualifies as a substitute based on these parameters: it provides four amplifier circuits in a 14-SOIC package, features rail-to-rail output, operates across compatible supply voltage ranges, and maintains surface mount configuration.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LPC660AIMX is classified as obsolete, while the MAX4395ESD+T maintains active product status. Active status ensures continued availability, manufacturing support, and compliance with current industry standards.

Compliance and Certification: The MAX4395ESD+T is ROHS3 compliant, whereas the LPC660AIMX is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the MAX4395ESD+T provides regulatory alignment. Both devices are REACH unaffected and carry EAR99 ECCN classification.

Packaging and Handling: Both parts share identical moisture sensitivity level (MSL 1, Unlimited), eliminating special storage or handling requirement changes during transition.

Performance Characteristics: The MAX4395ESD+T exhibits significantly higher slew rate (500 V/µs versus 0.11 V/µs) and greater output current capability per channel (95 mA versus 40 mA). These enhanced specifications provide performance headroom for applications previously constrained by LPC660AIMX limitations. Supply current consumption is higher in the MAX4395ESD+T (6 mA total versus 160 µA), which may impact power budget calculations in battery-operated or low-power applications.

Pin and Package Compatibility: Identical 14-SOIC package dimensions and surface mount configuration enable direct substitution without printed circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can the MAX4395ESD+T be used as a direct replacement for the LPC660AIMX without circuit modifications?

A: The MAX4395ESD+T is pin-compatible and package-compatible with the LPC660AIMX in the 14-SOIC configuration. However, circuit performance will differ due to significantly higher slew rate and output current capability. Applications designed for the LPC660AIMX specifications will function with the MAX4395ESD+T, but circuit behavior may change. Verification of application requirements against the MAX4395ESD+T datasheet is necessary.

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

A: The MAX4395ESD+T provides substantially higher slew rate (500 V/µs versus 0.11 V/µs), greater output current per channel (95 mA versus 40 mA), and higher total supply current consumption (6 mA versus 160 µA). The LPC660AIMX offers lower power consumption and slower slew rate characteristics suitable for low-speed, low-power applications.

Q: Are there packaging differences between the LPC660AIMX and MAX4395ESD+T?

A: Both devices are housed in 14-SOIC surface mount packages with identical physical dimensions (0.154", 3.90mm width). The MAX4395ESD+T is supplied in Tape & Reel packaging, while the LPC660AIMX packaging format is not specified in the provided data. Pin configuration and footprint are identical.

Q: What is the significance of the RoHS compliance difference?

A: The LPC660AIMX is RoHS non-compliant, while the MAX4395ESD+T is ROHS3 compliant. For applications or markets requiring RoHS compliance, the MAX4395ESD+T satisfies regulatory requirements. The LPC660AIMX may be restricted in certain jurisdictions or applications with environmental compliance mandates.

Q: How do supply voltage ranges compare?

A: The LPC660AIMX operates across 4.75 V to 15.5 V. The MAX4395ESD+T supports single supply operation from 4.5 V to 11 V or dual supply operation from ±2.25 V to ±5.5 V. For applications requiring the full 15.5 V upper limit of the LPC660AIMX, the MAX4395ESD+T single supply range is limited to 11 V maximum.

Q: What is the moisture sensitivity level for both parts?

A: Both the LPC660AIMX and MAX4395ESD+T carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special precautions.

Q: Is the MAX4395ESD+T suitable for low-power applications?

A: The MAX4395ESD+T consumes 6 mA total supply current compared to 160 µA for the LPC660AIMX. For applications with strict power consumption budgets, the LPC660AIMX offers significantly lower current draw. The MAX4395ESD+T is better suited for applications prioritizing performance over power efficiency.