LMC6042AIN Equivalent & Substitute Parts

Part Overview

The LMC6042AIN is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, designed for applications requiring rail-to-rail output capability and push-pull configuration. This device features low input bias current and operates across a wide supply voltage range of 4.5V to 15.5V.

The LMC6042AIN is classified as Obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement. Substitute parts maintain identical electrical and mechanical specifications while offering alternative packaging or availability status.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
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 (per Channel)	26	µA
Current - Output per Channel	40	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	15.5	V
Operating Temperature Range	-40 to 85	°C
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LMC6042AIN is determined by strict equivalence across all electrical and mechanical parameters. The substitute part LMC6042AIN/NOPB maintains identical specifications for amplifier type, circuit count, output configuration, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current capability, supply voltage range, operating temperature, and package form factor.

The primary distinction between the main part and substitute is packaging format and product status. Both components are manufactured by Texas Instruments under the LMC6042 base product number and share the same 8-PDIP package specification. Substitution is valid when the following parameters are matched:

Amplifier Type: CMOS
Number of Circuits: 2
Output Type: Push-Pull, Rail-to-Rail
Package / Case: 8-DIP (0.300", 7.62mm)
All electrical specifications as listed in Key Parameters table

Parameter Comparison

Parameter	LMC6042AIN	LMC6042AIN/NOPB	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Amplifier Type	CMOS	CMOS	✓
Number of Circuits	2	2	✓
Output Type	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail	✓
Slew Rate	0.02 V/µs	0.02 V/µs	✓
Gain Bandwidth Product	100 kHz	100 kHz	✓
Current - Input Bias	0.002 pA	0.002 pA	✓
Voltage - Input Offset	1 mV	1 mV	✓
Current - Supply	26 µA (x2 Channels)	26 µA (x2 Channels)	✓
Current - Output / Channel	40 mA	40 mA	✓
Voltage - Supply Span (Min)	4.5 V	4.5 V	✓
Voltage - Supply Span (Max)	15.5 V	15.5 V	✓
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	✓
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	✓
Mounting Type	Through Hole	Through Hole	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	✓
Product Status	Obsolete	Last Time Buy	Different
Packaging Format	Standard	Tube	Different

Engineering Selection Recommendations

The LMC6042AIN/NOPB serves as a direct electrical and mechanical equivalent to the LMC6042AIN. Both components are manufactured by Texas Instruments and comply with ROHS3 and REACH requirements. The substitute part is classified as Last Time Buy status, indicating limited future availability.

Selection between these parts should be based on procurement requirements and packaging format needs. The LMC6042AIN/NOPB is supplied in Tube packaging, whereas the main part specification does not specify packaging format. Both components maintain identical electrical performance across all specified parameters and are suitable for through-hole PCB assembly applications.

For applications requiring long-term component availability, the LMC6042AIN/NOPB should be prioritized due to its Last Time Buy status, which typically provides extended procurement windows compared to Obsolete classification. However, electrical performance and functional compatibility are identical between both parts.

Frequently Asked Questions (FAQ)

Q: Can LMC6042AIN/NOPB be used as a direct replacement for LMC6042AIN?

A: Yes. Both components are electrically and mechanically identical. All electrical parameters, including slew rate, gain bandwidth product, input bias current, supply voltage range, and output current capability, are identical. The 8-DIP through-hole package specification is identical. Substitution is valid for all applications.

Q: What is the difference between LMC6042AIN and LMC6042AIN/NOPB?

A: The primary differences are product status and packaging format. LMC6042AIN is classified as Obsolete, while LMC6042AIN/NOPB is Last Time Buy. LMC6042AIN/NOPB is supplied in Tube packaging. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts use the same 8-DIP (0.300", 7.62mm) through-hole package, identical pin configuration, and identical electrical specifications. PCB layout and circuit design require no modification.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix indicates the component is supplied without plumbum (lead-free) in Tube packaging format. This designation reflects RoHS3 compliance and packaging specification.

Q: Which part should be selected for new designs?

A: For new designs, LMC6042AIN/NOPB is the appropriate selection due to its Last Time Buy status, which provides extended procurement availability compared to the Obsolete LMC6042AIN. Electrical performance is identical.

Q: Are both parts RoHS compliant?

A: Yes. Both LMC6042AIN and LMC6042AIN/NOPB are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

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