BUY PC181 https://www.utsource.net/itm/p/4988499.html

Manufacturer: SHARP Description: PC181 is a SOP4 package IC manufactured by SHARP. Features: Operating voltage range of 2.7V to 5.5V Low power consumption High speed operation Low noise High reliability Wide temperature range High accuracy High speed data transfer Low power consumption High speed operation Low noise High reliability Wide temperature range High accuracy High speed data transfer Applications: Automotive Industrial Medical Consumer electronics Telecommunications Security systems Automation systems (For reference only)