The LF298MX is a monolithic sample-and-hold circuit from National Semiconductor, designed to capture and hold an analog voltage level with minimal droop for subsequent conversion or processing. It is a single-function device in a 14-SOIC surface-mount package, intended for precision analog signal chains where a stable held value is needed during ADC conversion or multiplexer settling.
The LF298MX comes in a 14-SOIC package with a body width of 3.90 mm (0.154"), standard for SOIC-14 narrow. It is a surface-mount device, so the board footprint matches the usual SOIC-14 land pattern. No exposed pad or thermal slug — the package dissipates through the leads and the board copper.
Lifecycle and compliance — active but RoHS non-compliant
However, it is marked as RoHS non-compliant, which is a critical flag for any assembly line that must meet EU RoHS or similar restricted-substance requirements. This part uses lead-bearing solder terminations — verify your exemption or accept the non-compliant status before committing the BOM line.