LM2907M-8 Frequency to Voltage Converter IC Equivalent & Substitute Parts

Part Overview

The LM2907M-8 is a Frequency to Voltage Converter IC manufactured by Texas Instruments, designed for 10 kHz operation with ±0.3% linearity in an 8-SOIC surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. Identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and ensuring project viability when original stock becomes unavailable.

Substiute Parts

LM2907M-8

Texas InstrumentsIn Stock: 2819LM2907M-8 Datasheet

Current PartRFQ

LM2907M-8/NOPB

Texas InstrumentsIn Stock: 2019LM2907M-8/NOPB Datasheet

DirectRFQ

LM2907M/NOPB

Texas InstrumentsIn Stock: 2379LM2907M/NOPB Datasheet

DirectRFQ

LM2907MX-8/NOPB

Texas InstrumentsIn Stock: 74959LM2907MX-8/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2907M-8 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Frequency - Max: 10 kHz (exact match required)
• Linearity: ±0.3% (exact match required)
• Type: Frequency to Voltage (functional equivalence required)
• Mounting Type: Surface Mount (mechanical compatibility required)
• RoHS Status: ROHS3 Compliant (regulatory compliance required)
• Moisture Sensitivity Level: 1 (Unlimited) (handling compatibility required)

Package Considerations: Substitutes are grouped by package configuration. The 8-SOIC package is the primary form factor for the LM2907M-8. The 14-SOIC variant (LM2907M/NOPB) represents a different package configuration and requires PCB layout modification.

Product Status Impact: Active status substitutes ensure ongoing availability and supply chain reliability. The manufacturer-recommended part (LM2907MX-8/NOPB) offers the highest inventory levels and represents the preferred long-term alternative.

Parameter Comparison

Engineering Selection Recommendations

Direct Pin-Compatible Substitutes (No PCB Modification Required):

LM2907M-8/NOPB and LM2907MX-8/NOPB are direct substitutes for LM2907M-8. Both maintain identical electrical specifications (10 kHz frequency, ±0.3% linearity) and package configuration (8-SOIC). The primary distinction is product status and inventory availability. LM2907MX-8/NOPB is the manufacturer-recommended alternative with significantly higher stock levels (74,908 pcs), ensuring supply chain continuity. Both parts meet ROHS3 compliance and MSL 1 requirements.

Package-Modified Substitute (PCB Layout Modification Required):

LM2907M/NOPB is functionally equivalent but uses a 14-SOIC package instead of 8-SOIC. This substitute requires PCB footprint redesign and layout modification. Selection of this part is appropriate only when PCB redesign is feasible and when 8-SOIC alternatives are unavailable.

Product Status Consideration:

The original LM2907M-8 carries Last Time Buy status, indicating production discontinuation. Active status alternatives (LM2907M-8/NOPB and LM2907MX-8/NOPB) provide long-term supply assurance and are preferred for new designs or production planning beyond current inventory depletion.

Frequently Asked Questions (FAQ)

Q: Can LM2907M-8/NOPB directly replace LM2907M-8 without PCB modification?

A: Yes. LM2907M-8/NOPB is a direct substitute with identical electrical specifications (10 kHz, ±0.3% linearity) and package configuration (8-SOIC). No PCB modification is required. The primary difference is packaging format (Tube vs. standard) and active product status.

Q: What is the difference between LM2907MX-8/NOPB and LM2907M-8/NOPB?

A: Both parts are electrically and mechanically identical with matching specifications and 8-SOIC packaging. The distinction is packaging format: LM2907MX-8/NOPB is supplied in Cut Tape (CT) & Digi-Reel format with substantially higher inventory (74,908 pcs vs. 1,949 pcs). LM2907MX-8/NOPB is the manufacturer-recommended substitute.

Q: Why is LM2907M/NOPB listed as a substitute if it uses a different package?

A: LM2907M/NOPB maintains all critical electrical parameters (10 kHz frequency, ±0.3% linearity, Frequency to Voltage type) and regulatory compliance (ROHS3, MSL 1). However, the 14-SOIC package differs from the 8-SOIC original, requiring PCB footprint redesign. This part is a functional equivalent suitable only when PCB modification is acceptable.

Q: What does Last Time Buy status mean for the LM2907M-8?

A: Last Time Buy indicates the manufacturer has discontinued production. Existing inventory (2,745 pcs) represents the final available stock. Once depleted, the part cannot be reordered from the manufacturer. Active status alternatives must be selected for designs requiring long-term component availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitutes (LM2907M-8/NOPB, LM2907MX-8/NOPB, and LM2907M/NOPB) are ROHS3 compliant and meet MSL 1 (Unlimited) moisture sensitivity requirements, ensuring regulatory and handling compatibility with the original LM2907M-8.

Q: Which substitute should be selected for new production designs?

A: LM2907MX-8/NOPB is the recommended choice for new production designs. It offers the highest inventory availability (74,908 pcs), active product status, identical electrical and mechanical specifications to the original, and manufacturer recommendation status. This ensures supply chain reliability and design continuity.