LM2917M-8 Frequency to Voltage Converter IC Equivalent & Substitute Parts

Part Overview

The LM2917M-8 is a Frequency to Voltage Converter IC manufactured by Texas Instruments, designed for applications requiring conversion of frequency signals up to 10 kHz into proportional voltage outputs. The device operates with ±0.3% linearity and is packaged in an 8-SOIC surface mount configuration. The main part number LM2917M-8 is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

LM2917M-8

Texas InstrumentsIn Stock: 4017LM2917M-8 Datasheet

Current PartRFQ

LM2917M-8/NOPB

Texas InstrumentsIn Stock: 2580LM2917M-8/NOPB Datasheet

DirectRFQ

LM2917M/NOPB

Texas InstrumentsIn Stock: 754LM2917M/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2917M-8 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Manufacturer: Texas Instruments (LM2917 base product family)
• Frequency conversion capability: 10 kHz maximum
• Linearity specification: ±0.3%
• Mounting type: Surface Mount
• RoHS and REACH compliance status
• Moisture Sensitivity Level: 1 (Unlimited)

The LM2917M-8 operates in an 8-SOIC package. Direct substitutes within the LM2917 family maintain identical electrical performance specifications while differing only in package configuration or lead finish designation. The LM2917M/NOPB variant uses a 14-SOIC package, which represents a different physical footprint but identical functional performance.

Parameter Comparison

Engineering Selection Recommendations

LM2917M-8/NOPB is the primary direct substitute for LM2917M-8. Both parts share identical package configuration (8-SOIC), electrical specifications, and compliance certifications. The LM2917M-8/NOPB carries Active product status, ensuring continued availability and manufacturing support compared to the Last Time Buy status of the main part number.

LM2917M/NOPB provides functional equivalence with identical electrical performance but requires PCB layout modification due to its 14-SOIC package configuration. This variant is suitable only when board redesign is feasible or when 14-SOIC footprints are already established in the design.

Selection between LM2917M-8/NOPB and LM2917M/NOPB depends on PCB layout constraints. The /NOPB designation indicates lead-free plating, consistent with ROHS3 compliance requirements across all variants.

Frequently Asked Questions (FAQ)

Q: Can LM2917M-8/NOPB directly replace LM2917M-8 without PCB modification?

A: Yes. Both parts use identical 8-SOIC packaging, electrical specifications, and compliance standards. No PCB layout changes are required.

Q: What is the difference between LM2917M-8 and LM2917M/NOPB?

A: The primary difference is package configuration. LM2917M-8 uses 8-SOIC, while LM2917M/NOPB uses 14-SOIC. Electrical performance and specifications are identical. PCB redesign is necessary for substitution.

Q: Why is LM2917M-8 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this specific part number variant. Active alternatives within the LM2917 family remain available for new designs and ongoing production.

Q: Are all LM2917 variants ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: What does the /NOPB designation indicate?

A: /NOPB designates lead-free plating on the component leads, consistent with ROHS3 requirements. This is a manufacturing specification with no impact on electrical functionality.

Q: Can frequency conversion specifications differ between LM2917 variants?

A: No. All LM2917 variants maintain 10 kHz maximum frequency conversion capability with ±0.3% linearity. Substitution is valid based on these identical electrical parameters.