LMV981BL Equivalent & Substitute Parts

Part Overview

The LMV981BL is a general-purpose operational amplifier manufactured by Texas Instruments, designed for rail-to-rail applications in compact surface-mount packages. This device features a single amplifier circuit with low input bias current and offset voltage, suitable for low-power signal conditioning and analog processing applications.

The LMV981BL carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems utilizing this component.

Substiute Parts

LMV981BL

Texas InstrumentsIn Stock: 1012LMV981BL Datasheet

Current PartRFQ

LMV981TL/NOPB

Texas InstrumentsIn Stock: 2635LMV981TL/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMV981BL is determined by equivalence across the following critical parameters:

Electrical Performance Criteria:

• Amplifier type classification (General Purpose)
• Single circuit configuration
• Rail-to-rail output capability
• Slew rate (0.42 V/µs)
• Gain bandwidth product (1.5 MHz)
• Input bias current (14 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)

Physical and Compliance Criteria:

• Surface mount mounting type
• Base product number (LMV981)
• RoHS and REACH compliance status
• Moisture sensitivity level (MSL 1)

The LMV981TL/NOPB qualifies as a direct substitute based on identical electrical specifications and compatible packaging within the LMV981 product family.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: LMV981TL/NOPB

The LMV981TL/NOPB is the direct substitute for the obsolete LMV981BL. This recommendation is based on the following factors:

Electrical Equivalence: All electrical parameters are identical, including slew rate, gain bandwidth product, input bias current, offset voltage, supply current, output current capability, and supply voltage range. The devices are functionally interchangeable in circuit applications.

Product Status: The LMV981TL/NOPB maintains active product status with Texas Instruments, ensuring ongoing availability and supply chain support. The LMV981BL is obsolete, making the substitute necessary for new production and long-term support.

Compliance Advantage: The LMV981TL/NOPB is ROHS3 compliant, whereas the LMV981BL is non-compliant. This compliance improvement aligns with current regulatory requirements and environmental standards.

Package Compatibility: Both devices use 6-pin ball grid array packages (6-UFBGA for LMV981BL and 6-DSBGA for LMV981TL/NOPB) with compatible footprints suitable for surface-mount assembly. The physical dimensions are comparable (1.01x1.51 mm versus 1.5x1.3 mm), allowing PCB layout adaptation with minimal redesign.

Inventory and Availability: The LMV981TL/NOPB is available in higher quantities (2569 pcs) compared to the LMV981BL (952 pcs), supporting production scalability.

Frequently Asked Questions (FAQ)

Q: Can the LMV981TL/NOPB be used as a direct replacement for the LMV981BL without circuit modifications?

A: Yes. The LMV981TL/NOPB is electrically identical to the LMV981BL across all specified parameters. No circuit modifications are required for functional equivalence. PCB layout may require minor adjustments due to package dimension differences (6-UFBGA versus 6-DSBGA), but electrical performance remains unchanged.

Q: What is the difference between the 6-UFBGA and 6-DSBGA packages?

A: Both are 6-pin ball grid array packages used for surface-mount applications. The LMV981BL uses 6-UFBGA (1.01x1.51 mm), while the LMV981TL/NOPB uses 6-DSBGA (1.5x1.3 mm). The footprints are compatible for most applications, though PCB design files may require verification to confirm pad spacing compatibility.

Q: Why is the LMV981BL listed as obsolete?

A: The LMV981BL has reached end-of-life status with Texas Instruments. The LMV981TL/NOPB represents the active continuation of the LMV981 product line and is the recommended substitute for ongoing designs and production.

Q: Are there any compliance differences between the two parts?

A: Yes. The LMV981TL/NOPB is ROHS3 compliant, while the LMV981BL is non-compliant. Both devices are REACH unaffected and carry MSL 1 (unlimited moisture sensitivity level). The RoHS3 compliance of the substitute provides regulatory alignment with current environmental standards.

Q: What is the inventory status for each part?

A: The LMV981BL has 952 pieces in stock, while the LMV981TL/NOPB has 2569 pieces available. The higher inventory of the substitute supports larger production volumes and reduces supply chain risk.

Q: Are the electrical specifications identical between the two parts?

A: Yes. Both parts share identical specifications for slew rate (0.42 V/µs), gain bandwidth product (1.5 MHz), input bias current (14 nA), input offset voltage (1 mV), supply current (116 µA), output current (100 mA), and supply voltage range (1.8 V to 5 V). Operating temperature range is also identical (-40°C to 125°C).

Q: What packaging format is the LMV981TL/NOPB supplied in?

A: The LMV981TL/NOPB is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. This packaging format is standard for high-volume production environments.