What this serializer does on the board
The Analog Devices MAX31911AUI+T is a Serializer that converts parallel analog input data into a serial digital output stream, communicating over an SPI interface. It is designed for industrial sensor applications where multiple analog signals must be digitized and transmitted over a reduced pin count to a host controller. The device operates from a single supply and draws 1.4 mA typical, making it suitable for power-sensitive remote sensor modules.
The MAX31911AUI+T is housed in a 28-TSSOP package with an exposed pad (28-TSSOP-EP). In a rework or repair scenario, the exposed pad requires a hot-air profile with bottom-side preheat to avoid cold joints. The package footprint is 4.40 mm width, 0.173" body length, standard for TSSOP-28.
It is ROHS3 compliant. There is no indication of a last-time-buy or end-of-life notice.