LMV981MG Equivalent & Substitute Parts

Part Overview

The LMV981MG is a general-purpose operational amplifier manufactured by Texas Instruments, featuring rail-to-rail output capability in a compact SC-70-6 surface mount package. This single-circuit amplifier is designed for low-voltage applications with a supply voltage range of 1.8 V to 5 V and operates across the industrial temperature range of -40°C to 125°C.

The LMV981MG is classified as obsolete, necessitating identification of equivalent and substitute components for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through matching electrical characteristics and mechanical packaging specifications.

Substiute Parts

LMV981MG

Texas InstrumentsIn Stock: 9467LMV981MG Datasheet

Current PartRFQ

LMV981MG/NOPB

National SemiconductorIn Stock: 1300LMV981MG/NOPB Datasheet

DirectRFQ

MAX9911EXT+T

Analog Devices Inc./Maxim IntegratedIn Stock: 77894MAX9911EXT+T Datasheet

MFR RecommendedRFQ

MAX9915EXT+T

Analog Devices Inc./Maxim IntegratedIn Stock: 4812MAX9915EXT+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMV981MG is determined by the following critical parameters:

Mandatory Matching Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Package / Case: 6-TSSOP, SC-88, SOT-363
• Mounting Type: Surface Mount
• Voltage - Supply Span (Min): 1.8 V minimum
• Voltage - Supply Span (Max): 5 V or greater

Performance Parameters for Functional Equivalence:

• Slew Rate: 0.42 V/µs or greater
• Gain Bandwidth Product: 1.5 MHz or greater
• Current - Input Bias: 14 nA or lower
• Voltage - Input Offset: 1 mV or lower
• Current - Supply: 116 µA or lower
• Current - Output / Channel: 100 mA or greater

The substitute parts identified below satisfy these criteria within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

LMV981MG/NOPB (Direct Substitute)

The LMV981MG/NOPB is the direct equivalent of the LMV981MG, manufactured by National Semiconductor. This part maintains identical electrical specifications and operating parameters. The LMV981MG/NOPB is classified as Active, providing long-term availability for production applications. This substitute is recommended for direct replacement in existing designs without circuit modification.

MAX9911EXT+T (Performance-Enhanced Substitute)

The MAX9911EXT+T, manufactured by Analog Devices Inc./Maxim Integrated, is an Active product offering superior electrical characteristics. This part features significantly lower input bias current (0.001 nA versus 14 nA) and reduced input offset voltage (0.2 mV versus 1 mV). The MAX9911EXT+T operates within the required supply voltage range and maintains the same package configuration. However, the slew rate (0.1 V/µs) and gain bandwidth product (0.2 MHz) are reduced compared to the LMV981MG. The MAX9911EXT+T is ROHS3 compliant and suitable for applications where lower input bias current and offset voltage are beneficial. Operating temperature is limited to -40°C to 85°C.

MAX9915EXT+T (Balanced Substitute)

The MAX9915EXT+T, manufactured by Analog Devices Inc./Maxim Integrated, is an Active product providing a balanced performance profile. This part features lower input bias current (0.001 nA) and reduced input offset voltage (0.2 mV) compared to the LMV981MG, with a slew rate of 0.5 V/µs and gain bandwidth product of 1 MHz. The MAX9915EXT+T operates within the required supply voltage range and maintains the same package configuration. Supply current is 20 µA, higher than the LMV981MG but lower than the MAX9911EXT+T. The MAX9915EXT+T is ROHS3 compliant. Operating temperature is limited to -40°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can the LMV981MG be directly replaced with LMV981MG/NOPB?

A: Yes. The LMV981MG/NOPB is the direct equivalent with identical electrical specifications, package configuration, and operating parameters. No circuit modification is required.

Q: What are the key differences between LMV981MG and MAX9911EXT+T?

A: The MAX9911EXT+T offers superior input characteristics with input bias current of 0.001 nA (versus 14 nA) and input offset voltage of 0.2 mV (versus 1 mV). However, the MAX9911EXT+T has reduced slew rate (0.1 V/µs versus 0.42 V/µs) and lower gain bandwidth product (0.2 MHz versus 1.5 MHz). Operating temperature range is also reduced to -40°C to 85°C. Both parts share identical package and supply voltage specifications.

Q: What are the key differences between LMV981MG and MAX9915EXT+T?

A: The MAX9915EXT+T provides lower input bias current (0.001 nA versus 14 nA) and reduced input offset voltage (0.2 mV versus 1 mV). The slew rate is 0.5 V/µs (versus 0.42 V/µs) and gain bandwidth product is 1 MHz (versus 1.5 MHz). Supply current is 20 µA (versus 116 µA). Operating temperature range is reduced to -40°C to 85°C. Both parts share identical package and supply voltage specifications.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts are available in the 6-TSSOP, SC-88, SOT-363 package configuration with surface mount mounting type, ensuring mechanical compatibility with existing PCB layouts.

Q: Which substitute part is recommended for applications requiring extended temperature operation?

A: The LMV981MG/NOPB maintains the full operating temperature range of -40°C to 125°C, matching the original LMV981MG. The MAX9911EXT+T and MAX9915EXT+T are limited to -40°C to 85°C. For applications requiring operation above 85°C, the LMV981MG/NOPB is the appropriate selection.

Q: Are the substitute parts RoHS compliant?

A: The LMV981MG is RoHS non-compliant. The MAX9911EXT+T and MAX9915EXT+T are ROHS3 compliant. The LMV981MG/NOPB compliance status is not specified in the provided data.

Q: Can MAX9911EXT+T or MAX9915EXT+T be used in applications requiring high slew rate performance?

A: The MAX9911EXT+T (0.1 V/µs) and MAX9915EXT+T (0.5 V/µs) have reduced slew rates compared to the LMV981MG (0.42 V/µs). For applications requiring slew rate performance matching or exceeding 0.42 V/µs, the LMV981MG/NOPB is the appropriate selection.

Q: What is the supply current difference between substitute parts?

A: The LMV981MG and LMV981MG/NOPB require 116 µA supply current. The MAX9911EXT+T requires 4 µA, and the MAX9915EXT+T requires 20 µA. For power-constrained applications, the MAX9911EXT+T offers the lowest supply current consumption.