LMC6482IMMX Equivalent & Substitute Parts

Part Overview

The LMC6482IMMX is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, designed for rail-to-rail signal conditioning applications. This device features low input bias current and operates across a wide supply voltage range of 3V to 15.5V. The part is designated as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute components is necessary to ensure design continuity and procurement availability for new production runs and field replacements.

Substiute Parts

LMC6482IMMX

Texas InstrumentsIn Stock: 19117LMC6482IMMX Datasheet

Current PartRFQ

LMC6482IMMX/NOPB

Texas InstrumentsIn Stock: 28384LMC6482IMMX/NOPB Datasheet

DirectRFQ

MIC7122YMM

Microchip TechnologyIn Stock: 2009MIC7122YMM Datasheet

MFR RecommendedRFQ

MIC7122YMM-TR

Microchip TechnologyIn Stock: 1961MIC7122YMM-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMC6482IMMX is determined by the following critical parameters: dual-channel configuration, CMOS amplifier type, rail-to-rail output capability, slew rate of 1.3V/µs, gain bandwidth product of 1.5MHz, supply voltage range of 3V to 15.5V, and 8-pin surface mount packaging (8-VSSOP/8-MSOP form factor).

The substitute parts are grouped into two categories:

Category 1: Direct Equivalent (Identical Specifications) LMC6482IMMX/NOPB is a direct equivalent manufactured by Texas Instruments with identical electrical specifications and packaging. This part differs only in product status (Active versus Last Time Buy) and packaging designation (NOPB indicates no lead-free plating).

Category 2: Functional Substitute (Compatible Parameters) MIC7122YMM and MIC7122YMM-TR are manufactured by Microchip Technology and function as substitutes based on shared electrical characteristics: dual-channel configuration, rail-to-rail output, 8-pin surface mount packaging, and overlapping supply voltage range (2.2V to 15V). However, these parts exhibit lower slew rate (0.5V/µs versus 1.3V/µs), reduced gain bandwidth product (420kHz versus 1.5MHz), and higher input offset voltage (500µV versus 110µV).

Parameter Comparison

Engineering Selection Recommendations

LMC6482IMMX/NOPB is the primary recommended substitute for the LMC6482IMMX. This part maintains identical electrical specifications and packaging configuration while offering Active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and carry MSL 1 rating. Selection of LMC6482IMMX/NOPB eliminates design risk and requires no circuit modifications.

MIC7122YMM and MIC7122YMM-TR are functional substitutes suitable for applications where the reduced slew rate (0.5V/µs), lower gain bandwidth product (420kHz), and higher input offset voltage (500µV) are acceptable within circuit design margins. These Microchip Technology parts offer higher output current capability (250mA per channel versus 30mA) and lower supply current (0.8mA versus 1.3mA). MIC7122YMM-TR is preferred over MIC7122YMM due to superior moisture sensitivity rating (MSL 1 versus MSL 2) and Cut Tape packaging format. Both MIC7122 variants are ROHS3 compliant and Active status products.

Selection between direct equivalent and functional substitute depends on application-specific performance requirements regarding signal bandwidth, slew rate, and offset voltage specifications.

Frequently Asked Questions (FAQ)

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

A: Yes. LMC6482IMMX/NOPB is a direct equivalent with identical electrical specifications, operating temperature range, supply voltage range, and 8-VSSOP packaging. The only differences are product status (Active versus Last Time Buy) and lead-free plating designation (NOPB). No circuit modifications are required.

Q: What are the key differences between LMC6482IMMX and MIC7122YMM?

A: The primary differences are slew rate (1.3V/µs versus 0.5V/µs), gain bandwidth product (1.5MHz versus 420kHz), input offset voltage (110µV versus 500µV), and input bias current (0.02pA versus 1pA). MIC7122YMM offers higher output current (250mA versus 30mA) and lower supply current (0.8mA versus 1.3mA). These differences affect circuit performance in high-frequency and precision applications.

Q: Are the MIC7122YMM and MIC7122YMM-TR electrically identical?

A: Yes, MIC7122YMM and MIC7122YMM-TR have identical electrical specifications. The differences are packaging format (Tube versus Cut Tape & Digi-Reel) and moisture sensitivity level (MSL 2 versus MSL 1). MIC7122YMM-TR is preferred for applications requiring superior moisture protection and tape reel handling.

Q: What is the significance of the 8-VSSOP versus 8-MSOP package designation?

A: Both designations refer to 8-pin surface mount packages with 0.118" width and 3.00mm body width. 8-VSSOP is the Texas Instruments supplier designation for LMC6482 devices, while 8-MSOP is the Microchip Technology designation for MIC7122 devices. The physical footprints are compatible for PCB layout purposes.

Q: Can MIC7122YMM be used in applications requiring 1.3V/µs slew rate?

A: No. MIC7122YMM has a maximum slew rate of 0.5V/µs, which is insufficient for applications requiring 1.3V/µs performance. In such cases, LMC6482IMMX or LMC6482IMMX/NOPB must be used to meet slew rate specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LMC6482IMMX, LMC6482IMMX/NOPB, MIC7122YMM, and MIC7122YMM-TR are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for electronic component manufacturing and distribution.

Q: What is the difference between MSL 1 and MSL 2 moisture sensitivity ratings?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life under controlled storage conditions. MSL 2 (1 Year) indicates a maximum shelf life of one year under controlled conditions. MIC7122YMM-TR with MSL 1 rating provides superior protection against moisture-related failures during extended storage and handling.