LF398N/NOPB

Overview

The LF398N/NOPB is a monolithic sample and hold circuit manufactured by Texas Instruments. It utilizes BI-FET technology to provide high-speed analog signal processing within an 8-pin PDIP package. The device captures analog input signals with a capture time of 4 microseconds, as documented in Mouser specifications. It operates on a single power supply ranging from 5 V to 18 V. The component supports through-hole installation and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Monolithic construction integrating sampling and holding functions into a single circuit.

Applications

• Data acquisition systems utilizing ADC0816 and ADC0817 8-bit ADCs with on-chip multiplexers.

Procurement Notes

Verify the specific package variant against project requirements, as the LF398 series includes both DIP and SOIC options. Confirm that the 4 µs capture time aligns with system timing constraints. Ensure the operating voltage range fits the available power supply rails. Check for RoHS compliance documentation if required by regulatory standards.

Selection Notes

Select this component when a low-cost, general-purpose sample and hold amplifier is needed for basic data acquisition tasks. The BI-FET input stage offers suitable performance for moderate speed applications. Consider the PDIP-8 package for prototyping or designs requiring through-hole mounting capabilities.

Part Context

This part belongs to the LF398 family of sample and hold amplifiers. It serves as a fundamental building block for converting continuous analog signals into discrete values for digital processing. The NOPB suffix indicates lead-free manufacturing compliant with environmental directives.

Replacement Considerations

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