LPC662IMX CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The LPC662IMX is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring two independent amplifier circuits with push-pull, rail-to-rail output configuration in an 8-SOIC surface mount package. This device is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. The LPC662IMX operates across a wide supply voltage range of 4.75V to 15.5V and is suitable for applications requiring low input bias current and moderate bandwidth performance.

Substiute Parts

LPC662IMX

Texas InstrumentsIn Stock: 6254LPC662IMX Datasheet

Current PartRFQ

LPC662IMX/NOPB

Texas InstrumentsIn Stock: 1461LPC662IMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPC662IMX is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier type classification (CMOS technology)
• Number of independent amplifier circuits (2 channels)
• Output configuration (Push-Pull, Rail-to-Rail capability)
• Slew rate performance (0.11 V/µs)
• Gain bandwidth product (350 kHz)
• Input bias current specification (0.002 pA)
• Input offset voltage (1 mV)
• Supply current per channel (86 µA x2)
• Output current capability per channel (40 mA)
• Supply voltage operating range (4.75V to 15.5V minimum)
• Temperature operating range (-40°C to 85°C)

Mechanical Equivalence Criteria:

• Package type (8-SOIC surface mount)
• Package dimensions (0.154" width, 3.90mm)
• Pin configuration compatibility

The LPC662IMX/NOPB is identified as a direct substitute based on identical electrical specifications and mechanical packaging, with the primary distinction being packaging format (Tape & Reel) and improved RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

LPC662IMX/NOPB Selection Basis:

The LPC662IMX/NOPB is the direct functional equivalent of the LPC662IMX. All electrical parameters, including amplifier type, circuit count, output configuration, slew rate, gain bandwidth product, bias current, offset voltage, supply current, output current, supply voltage range, and operating temperature specifications are identical.

The LPC662IMX/NOPB offers two significant advantages over the original LPC662IMX:

1. Product Status: Classified as Last Time Buy rather than Obsolete, providing extended availability for production requirements.

2. Regulatory Compliance: ROHS3 Compliant status versus RoHS non-compliant, meeting current environmental and regulatory standards for component procurement in regulated industries.

Both devices are packaged in 8-SOIC surface mount configuration with identical mechanical dimensions. The primary distinction is packaging format: the LPC662IMX/NOPB is supplied in Tape & Reel format, which is standard for automated assembly processes, whereas the original LPC662IMX is supplied in tube packaging.

For new designs or production continuity, the LPC662IMX/NOPB is the appropriate selection, offering identical electrical performance with improved product lifecycle status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the LPC662IMX/NOPB be used as a direct replacement for the LPC662IMX in existing designs?

A: Yes. The LPC662IMX/NOPB is electrically and mechanically identical to the LPC662IMX. All electrical specifications, including amplifier type, circuit count, output configuration, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, supply voltage range, and operating temperature are identical. The 8-SOIC surface mount package dimensions are also identical, allowing direct PCB footprint compatibility.

Q: What is the difference between LPC662IMX and LPC662IMX/NOPB?

A: The devices are electrically identical. The differences are: (1) Packaging format—LPC662IMX/NOPB is supplied in Tape & Reel format suitable for automated assembly, while LPC662IMX is supplied in tube packaging; (2) Product status—LPC662IMX/NOPB is Last Time Buy, while LPC662IMX is Obsolete; (3) RoHS compliance—LPC662IMX/NOPB is ROHS3 Compliant, while LPC662IMX is RoHS non-compliant.

Q: Why is the LPC662IMX classified as Obsolete?

A: The LPC662IMX has reached end-of-life status with Texas Instruments. The LPC662IMX/NOPB variant remains available as Last Time Buy, providing a transition path for existing designs requiring this amplifier topology.

Q: Are there any pin configuration differences between the LPC662IMX and LPC662IMX/NOPB?

A: No. Both devices use identical 8-SOIC pin configuration and are pin-for-pin compatible.

Q: What is the significance of the /NOPB designation?

A: The /NOPB suffix indicates "No Plumbum" (lead-free) packaging, reflecting RoHS3 compliance and the absence of lead in the solder and component materials.

Q: Can the LPC662IMX be used in new production designs?

A: The LPC662IMX is classified as Obsolete and inventory availability is limited. For new production designs, the LPC662IMX/NOPB is the recommended selection, offering identical electrical performance with extended availability and improved regulatory compliance.

Q: What is the current inventory status for these parts?

A: LPC662IMX has 6167 pieces in stock (Obsolete status). LPC662IMX/NOPB has 1376 pieces in stock (Last Time Buy status). Inventory levels should be verified at time of procurement.