LM2907N-8 Frequency to Voltage Converter IC Equivalent & Substitute Parts

Part Overview

The LM2907N-8 is a Frequency to Voltage Converter IC designed for 10 kHz maximum frequency operation with ±0.3% linearity. Manufactured by Texas Instruments, this component converts frequency input signals into proportional voltage outputs, commonly used in tachometer circuits, frequency measurement applications, and control systems requiring analog voltage representation of frequency data.

The LM2907N-8 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, field repairs, and system maintenance where this component is specified in existing designs.

Substiute Parts

LM2907N-8

Texas InstrumentsIn Stock: 88925LM2907N-8 Datasheet

Current PartRFQ

LM2907N-8/NOPB

National SemiconductorIn Stock: 59723LM2907N-8/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2907N-8 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Functional Parameters:

• Type: Frequency to Voltage conversion capability
• Frequency - Max: 10 kHz operation
• Linearity: ±0.3% accuracy specification

Mechanical Parameters:

• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Supplier Device Package: 8-PDIP

Base Product Compatibility:

• Base Product Number: LM2907

Parts meeting all these criteria are classified as direct functional and mechanical substitutes. The LM2907N-8/NOPB qualifies as a substitute based on identical electrical specifications and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The LM2907N-8/NOPB is a qualified substitute for the obsolete LM2907N-8. Both parts share identical electrical specifications (10 kHz maximum frequency, ±0.3% linearity) and mechanical packaging (8-PDIP through-hole configuration), ensuring direct functional compatibility in existing circuit designs.

The primary distinction is product status: the LM2907N-8/NOPB maintains active production status, providing supply chain continuity for new builds and field replacements. The LM2907N-8/NOPB is manufactured by National Semiconductor, a recognized producer within the LM2907 product family.

For applications requiring RoHS compliance or specific moisture sensitivity documentation, component-level compliance verification with the supplier is necessary, as these parameters are not uniformly specified across all variants in this product family.

Frequently Asked Questions (FAQ)

Q: Can the LM2907N-8/NOPB be used as a direct replacement for the LM2907N-8?

A: Yes. Both parts are identical in electrical performance (10 kHz frequency range, ±0.3% linearity) and mechanical packaging (8-PDIP through-hole). Pin-for-pin compatibility is confirmed. No circuit modifications are required.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix indicates the part is supplied in bulk packaging without lead-free plating. This is a packaging and delivery specification that does not affect electrical or mechanical compatibility.

Q: Why is the main part listed as obsolete?

A: The LM2907N-8 has been discontinued by Texas Instruments. The LM2907N-8/NOPB remains in active production, making it the recommended source for ongoing supply requirements.

Q: Are there any compliance differences between these parts?

A: The LM2907N-8 is documented as RoHS non-compliant. Compliance status for the LM2907N-8/NOPB should be confirmed directly with the supplier, as this information is not uniformly published across all product variants.

Q: What is the moisture sensitivity level for the substitute part?

A: Moisture sensitivity level (MSL) for the LM2907N-8/NOPB is not specified in available documentation. For applications requiring specific MSL ratings, contact the supplier for detailed component specifications.

Q: Are both parts suitable for through-hole PCB assembly?

A: Yes. Both the LM2907N-8 and LM2907N-8/NOPB are through-hole mounted components in 8-DIP packaging with 0.300" (7.62mm) lead spacing, compatible with standard through-hole assembly processes.