LMC6482IMM/NOPB Equivalent & Substitute Parts

Part Overview

The LMC6482IMM/NOPB is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in an 8-VSSOP surface mount package. This device features rail-to-rail output capability and is designed for general-purpose analog signal conditioning applications. The part is currently in Last Time Buy status, indicating discontinued production. Identification of equivalent and substitute components is necessary to ensure design continuity and procurement availability for new production runs and long-term system support.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	1.3	V/µs
Gain Bandwidth Product	1.5	MHz
Current - Input Bias	0.02	pA
Voltage - Input Offset	110	µV
Current - Supply (x2 Channels)	1.3	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	15.5	V
Operating Temperature Range	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Supplier Device Package	8-VSSOP	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LMC6482IMM/NOPB is determined by the following critical parameters: dual-channel configuration, rail-to-rail output capability, surface mount 8-pin package format, CMOS or general-purpose amplifier topology, supply voltage range compatibility, and operating temperature range. The substitute parts identified maintain these core functional and mechanical characteristics while offering variations in slew rate, gain bandwidth product, input bias current, and supply current specifications.

The substitution logic is organized into two categories:

Category 1: Direct Manufacturer Equivalent LMC6482IMMX/NOPB is a Texas Instruments part with identical electrical specifications and package designation, differing only in product status (Active vs. Last Time Buy) and packaging format (Cut Tape & Digi-Reel vs. standard).

Category 2: Cross-Manufacturer Alternatives MC33202DMR2G (onsemi) and MIC7122YMM/MIC7122YMM-TR (Microchip Technology) provide functional substitution with compatible package footprints and dual-channel rail-to-rail output, though with differing performance characteristics in slew rate, bandwidth, and supply current specifications.

Parameter Comparison

Parameter	LMC6482IMM/NOPB	LMC6482IMMX/NOPB	MC33202DMR2G	MIC7122YMM	MIC7122YMM-TR
Manufacturer	Texas Instruments	Texas Instruments	onsemi	Microchip Technology	Microchip Technology
Amplifier Type	CMOS	CMOS	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	1.3	1.3	1	0.5	0.5
Gain Bandwidth Product (MHz)	1.5	1.5	2.2	0.42	0.42
Current - Input Bias (pA/nA)	0.02 pA	0.02 pA	80 nA	1 pA	1 pA
Voltage - Input Offset (µV/mV)	110 µV	110 µV	8 mV	500 µV	500 µV
Current - Supply (mA, x2 Channels)	1.3	1.3	0.9	0.8	0.8
Current - Output / Channel (mA)	30	30	80	250	250
Voltage - Supply Span Min (V)	3	3	1.8	2.2	2.2
Voltage - Supply Span Max (V)	15.5	15.5	12	15	15
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 105	-40 to 85	-40 to 85
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Product Status	Last Time Buy	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)

Engineering Selection Recommendations

LMC6482IMMX/NOPB is the primary recommended substitute. This Texas Instruments part maintains identical electrical specifications and operating characteristics to the LMC6482IMM/NOPB. The part is in Active product status, ensuring long-term availability and supply chain stability. Both parts are ROHS3 compliant with MSL 1 rating. The only distinction is packaging format; LMC6482IMMX/NOPB is supplied in Cut Tape & Digi-Reel format, which is standard for production environments.

MC33202DMR2G (onsemi) is suitable for applications where higher output current capability (80 mA per channel vs. 30 mA) and extended operating temperature range (-40°C to 105°C vs. -40°C to 85°C) are beneficial. This part exhibits higher gain bandwidth product (2.2 MHz vs. 1.5 MHz) and lower supply current (0.9 mA vs. 1.3 mA). However, input offset voltage is significantly higher (8 mV vs. 110 µV), which may impact precision analog applications. The maximum supply voltage is limited to 12 V compared to 15.5 V for the original part.

MIC7122YMM and MIC7122YMM-TR (Microchip Technology) provide substitution for applications prioritizing ultra-low input bias current (1 pA) and high output current capability (250 mA per channel). These parts operate at lower slew rate (0.5 V/µs vs. 1.3 V/µs) and reduced gain bandwidth product (420 kHz vs. 1.5 MHz). MIC7122YMM-TR is preferred over MIC7122YMM due to superior moisture sensitivity rating (MSL 1 vs. MSL 2) and Cut Tape & Digi-Reel packaging suitable for production environments.

All substitute parts maintain dual-channel configuration, rail-to-rail output, compatible 8-pin surface mount package footprint, and ROHS3 compliance. Selection should be based on specific application requirements for slew rate, bandwidth, output current, and supply voltage range.

Frequently Asked Questions (FAQ)

Q: Can LMC6482IMMX/NOPB be used as a direct replacement for LMC6482IMM/NOPB?

A: Yes. LMC6482IMMX/NOPB is electrically and functionally identical to LMC6482IMM/NOPB. Both parts share the same base product number (LMC6482), identical electrical specifications, and compatible package footprints. The primary difference is product status (Active vs. Last Time Buy) and packaging format. LMC6482IMMX/NOPB is recommended for new designs and production continuity.

Q: What are the key differences between the Texas Instruments LMC6482 variants and the onsemi MC33202DMR2G?

A: The MC33202DMR2G offers higher output current per channel (80 mA vs. 30 mA) and extended operating temperature range to 105°C. However, it has lower slew rate (1 V/µs vs. 1.3 V/µs), higher input offset voltage (8 mV vs. 110 µV), and maximum supply voltage limited to 12 V. Selection depends on whether the application requires higher output current and temperature range or lower input offset voltage and higher supply voltage capability.

Q: When should MIC7122YMM-TR be selected over LMC6482IMMX/NOPB?

A: MIC7122YMM-TR is appropriate for applications requiring extremely low input bias current (1 pA vs. 0.02 pA) and very high output current capability (250 mA per channel vs. 30 mA). This part is suitable for high-impedance signal conditioning and high-current output buffering. However, the reduced slew rate (0.5 V/µs) and lower gain bandwidth product (420 kHz) make it unsuitable for high-speed signal processing applications where the LMC6482 variants are preferred.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All substitute parts use 8-pin surface mount packages (8-TSSOP or 8-MSOP) with 0.118" width and 3.00mm body width. The pin configurations are compatible, allowing direct PCB footprint substitution. However, electrical performance differences require circuit validation before implementation.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings in these parts?

A: MSL 1 (Unlimited) indicates the part has no moisture sensitivity restrictions and can be stored indefinitely without special handling. MSL 2 (1 Year) requires controlled storage conditions and limits shelf life to one year from the date of manufacture. MIC7122YMM-TR (MSL 1) is preferred over MIC7122YMM (MSL 2) for supply chain flexibility and extended storage capability.

Q: Can these parts be used interchangeably in precision analog applications?

A: No. Input offset voltage varies significantly across these parts (110 µV for LMC6482 variants vs. 8 mV for MC33202DMR2G vs. 500 µV for MIC7122 variants). Applications requiring offset voltage below 1 mV must use LMC6482IMM/NOPB or LMC6482IMMX/NOPB. MC33202DMR2G and MIC7122 variants are suitable only for applications with higher offset voltage tolerance.

Q: What supply voltage range must be verified when substituting these parts?

A: The original LMC6482IMM/NOPB operates from 3 V to 15.5 V. MC33202DMR2G is limited to 12 V maximum, while MIC7122 variants operate to 15 V. Designs requiring supply voltages above 12 V must use LMC6482 variants or MIC7122 parts. Designs operating below 3 V cannot use any of these parts.

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