LMC6044IN CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The LMC6044IN is a CMOS operational amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-pin DIP package. This device provides push-pull, rail-to-rail output capability with low input bias current and is designed for applications requiring low-power CMOS amplification.

The LMC6044IN carries an Obsolete product status, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. Substitute parts must maintain identical electrical performance characteristics and package compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

LMC6044IN

Texas InstrumentsIn Stock: 2300LMC6044IN Datasheet

Current PartRFQ

LMC6044IN/NOPB

Texas InstrumentsIn Stock: 1288LMC6044IN/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMC6044IN is determined by strict equivalence across the following critical parameters:

Electrical Performance Criteria:

• Amplifier Type: CMOS
• Number of Circuits: 4
• Output Type: Push-Pull, Rail-to-Rail
• Slew Rate: 0.02 V/µs
• Gain Bandwidth Product: 100 kHz
• Current - Input Bias: 0.002 pA
• Voltage - Input Offset: 1 mV
• Current - Supply: 52 µA (x4 Channels)
• Current - Output / Channel: 40 mA
• Voltage - Supply Span: 4.5 V to 15.5 V
• Operating Temperature Range: -40°C to 85°C (TJ)

Package and Mechanical Criteria:

• Package Type: 14-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Supplier Device Package: 14-PDIP

Parts meeting all specified electrical and mechanical parameters are classified as direct substitutes. Variations in product status, packaging format (tube vs. bulk), or compliance certifications do not affect functional substitutability when electrical and mechanical specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

LMC6044IN/NOPB is a direct electrical and mechanical equivalent to the LMC6044IN. Both parts share identical electrical specifications across all measured parameters, including amplifier type, circuit count, output characteristics, frequency response, bias current, offset voltage, supply current, output current capability, and operating temperature range. Both are packaged in 14-DIP through-hole format with identical pin configuration and mechanical dimensions.

The primary differences between these parts are non-functional:

Product Status: LMC6044IN is classified as Obsolete, while LMC6044IN/NOPB is designated Last Time Buy. This distinction reflects supply availability and manufacturer support timelines rather than technical performance.

RoHS Compliance: LMC6044IN is RoHS non-compliant, whereas LMC6044IN/NOPB achieves ROHS3 compliance. For applications subject to RoHS regulatory requirements or procurement policies mandating RoHS-compliant components, LMC6044IN/NOPB is the appropriate selection.

Packaging Format: LMC6044IN is supplied in bulk packaging, while LMC6044IN/NOPB is supplied in tube packaging. Packaging format selection depends on assembly process requirements and inventory management practices.

From a functional engineering perspective, either part provides identical circuit performance and can be substituted without modification to circuit design, PCB layout, or firmware.

Frequently Asked Questions (FAQ)

Q: Can LMC6044IN/NOPB be used as a direct replacement for LMC6044IN in existing designs?

A: Yes. LMC6044IN/NOPB is electrically and mechanically identical to LMC6044IN. All electrical parameters, pin configuration, and package dimensions are equivalent. No circuit design changes are required.

Q: What is the significance of the "/NOPB" suffix in LMC6044IN/NOPB?

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) construction and is associated with RoHS3 compliance. This designation reflects the manufacturing process and material composition rather than functional performance differences.

Q: Are there differences in pin configuration between LMC6044IN and LMC6044IN/NOPB?

A: No. Both parts use identical 14-pin DIP package configuration with the same pin assignments, signal routing, and functional layout.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts are through-hole mounted in 14-DIP packages with identical mechanical dimensions (0.300" width, 7.62mm pitch). PCB footprints, hole spacing, and assembly procedures are identical.

Q: What is the difference between bulk and tube packaging?

A: Bulk packaging supplies components in loose form, typically in bags or trays. Tube packaging supplies components in plastic tubes, typically 50 or 100 units per tube. Packaging format does not affect component performance and is selected based on assembly process requirements and inventory management.

Q: Why is LMC6044IN marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. LMC6044IN/NOPB, designated Last Time Buy, represents the final production run before complete discontinuation. For new designs or long-term procurement, alternative CMOS amplifier solutions should be evaluated.

Q: Are there RoHS compliance implications for using LMC6044IN?

A: LMC6044IN is RoHS non-compliant due to lead-based solder and materials. Applications subject to RoHS regulations, EU directives, or customer procurement policies requiring RoHS compliance must use LMC6044IN/NOPB instead.

Q: Do these parts have identical electrical performance across the full operating temperature range?

A: Yes. Both parts maintain specified electrical performance across the -40°C to 85°C operating temperature range. Temperature coefficients and performance drift characteristics are identical.