LMV981IDBVR Equivalent & Substitute Parts

Part Overview

The LMV981IDBVR is a general purpose operational amplifier manufactured by Texas Instruments, housed in a SOT-23-6 surface mount package. This device features rail-to-rail output capability and operates across a 1.8 V to 5 V supply voltage range, making it suitable for low-power analog signal processing applications. The LMV981IDBVR is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts maintain identical electrical performance characteristics while offering active product status and improved availability.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	0.42	V/µs
Gain Bandwidth Product	1.5	MHz
Current - Input Bias	15	nA
Voltage - Input Offset	1	mV
Current - Supply	116	µA
Current - Output / Channel	100	mA
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-23-6	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LMV981IDBVR is determined by strict equivalence across the following critical parameters: amplifier type (general purpose), number of circuits (1), output type (rail-to-rail), slew rate (0.42 V/µs), gain bandwidth product (1.5 MHz), input bias current (14-15 nA), input offset voltage (1 mV), supply current (116 µA), output current per channel (100 mA), supply voltage range (1.8 V to 5 V), operating temperature range (-40°C to 125°C), and surface mount technology.

Substitute parts are grouped into two categories based on package configuration:

Category 1: SOT-23-6 Package — LMV981MF/NOPB and LMV981MFX/NOPB maintain identical SOT-23-6 packaging, enabling direct board-level substitution without layout modification.

Category 2: SC-70-6 Package — LMV981MG/NOPB and LMV981MGX/NOPB utilize SC-70-6 (6-TSSOP, SOT-363) packaging, requiring PCB footprint redesign but maintaining all electrical specifications.

All substitute parts are manufactured by Texas Instruments or National Semiconductor and hold active product status with ROHS3 compliance and unlimited moisture sensitivity rating.

Parameter Comparison

Parameter	LMV981IDBVR	LMV981MF/NOPB	LMV981MFX/NOPB	LMV981MG/NOPB	LMV981MGX/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	National Semiconductor	National Semiconductor
Product Status	Obsolete	Active	Active	Active	Active
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	0.42	0.42	0.42	0.42	0.42
Gain Bandwidth Product (MHz)	1.5	1.5	1.5	1.5	1.5
Current - Input Bias (nA)	15	14	14	14	14
Voltage - Input Offset (mV)	1	1	1	1	1
Current - Supply (µA)	116	116	116	116	116
Current - Output / Channel (mA)	100	100	100	100	100
Voltage - Supply Span Min (V)	1.8	1.8	1.8	1.8	1.8
Voltage - Supply Span Max (V)	5	5	5	5	5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SOT-23-6	SOT-23-6	SOT-23-6	SC-70-6	SC-70-6
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Board-Level Substitution (No Layout Changes):

LMV981MFX/NOPB is the primary substitute for LMV981IDBVR. This part maintains SOT-23-6 packaging, enabling direct replacement without PCB footprint modification. LMV981MFX/NOPB holds active product status with the highest inventory availability (20,300 units), ensuring supply chain continuity. Both parts are ROHS3 compliant with unlimited moisture sensitivity rating.

LMV981MF/NOPB serves as a secondary SOT-23-6 option with active status and adequate inventory (2,274 units). Electrical specifications are identical to LMV981MFX/NOPB.

For Applications Permitting Package Redesign:

LMV981MGX/NOPB and LMV981MG/NOPB provide SC-70-6 package alternatives, requiring PCB footprint redesign. These parts maintain all electrical specifications and active product status. LMV981MGX/NOPB offers higher inventory (2,150 units) compared to LMV981MG/NOPB (1,269 units).

Compliance and Regulatory Considerations:

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, matching the original LMV981IDBVR specifications. ECCN classification (EAR99) and HTSUS code (8542.33.0001) remain consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can LMV981MFX/NOPB replace LMV981IDBVR without PCB modification?

A: Yes. LMV981MFX/NOPB maintains identical SOT-23-6 packaging and all electrical specifications, enabling direct board-level substitution without layout changes.

Q: What is the difference between LMV981MF/NOPB and LMV981MFX/NOPB?

A: Both parts are electrically identical with SOT-23-6 packaging. The primary difference is inventory availability and packaging format (Tape & Reel). Selection depends on procurement volume and supply chain requirements.

Q: Why do LMV981MG/NOPB and LMV981MGX/NOPB use different packaging?

A: These parts utilize SC-70-6 (6-TSSOP, SOT-363) packaging instead of SOT-23-6. While electrically equivalent, SC-70-6 packaging requires PCB footprint redesign. This option is suitable for applications where package size reduction is beneficial.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LMV981MF/NOPB, LMV981MFX/NOPB, LMV981MG/NOPB, and LMV981MGX/NOPB are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the original LMV981IDBVR specifications.

Q: What is the input bias current difference between LMV981IDBVR and substitute parts?

A: LMV981IDBVR specifies 15 nA input bias current, while all substitute parts specify 14 nA. This 1 nA difference is within typical operational tolerance and does not affect circuit functionality or performance.

Q: Which substitute part offers the best supply availability?

A: LMV981MFX/NOPB provides the highest inventory (20,300 units), making it the optimal choice for production volumes requiring immediate availability and supply chain security.

Q: Can substitute parts operate across the same temperature range as LMV981IDBVR?

A: Yes. All substitute parts operate across the identical temperature range of -40°C to 125°C, maintaining full performance specifications across the extended industrial temperature range.

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