LM2917MX

Overview

The LM2917MX is a monolithic frequency-to-voltage converter manufactured by Texas Instruments, formerly National Semiconductor. It operates on a single supply voltage ranging from 6 V to 28 V and features a full-scale frequency of 10 kHz with an integral nonlinearity of +/- 1% FSR. The device is housed in an 8-pin SOIC package (SOIC-8) suitable for surface mount installation. It functions within a temperature range of -40°C to +85°C and belongs to the LM2917 series under Data Converter ICs.

Feature Summary

• Monolithic integration of frequency-to-voltage conversion capabilities
• High gain operational amplifier and comparator design
• Direct interface capability for ground-referenced tachometer inputs

Applications

• Tachometer circuits
• Speed switch building blocks
• Frequency measurement systems

Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor, when sourcing this component. Confirm the specific suffix 'MX' indicates the 8-pin SOIC narrow package variant. Ensure compatibility with single-supply operation requirements between 6 V and 28 V. Check for RoHS compliance documentation if environmental regulations apply to the target assembly process.

Selection Notes

Select this component for applications requiring precise frequency-to-voltage translation within a 10 kHz bandwidth. The 8-pin SOIC form factor suits space-constrained surface-mount designs. Consider the +/- 1% FSR linearity specification against application tolerance requirements. Verify that the operating temperature range of -40°C to +85°C meets the environmental conditions of the intended deployment scenario.

Part Context

This part belongs to the LM2907/LM2917 series of monolithic converters. While the LM2907 typically offers frequency-to-voltage conversion, the LM2917 variant provides both voltage-to-frequency and frequency-to-voltage conversion capabilities. The MX suffix specifically denotes the plastic small-outline package configuration used in modern electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.