This part is a kind of semiconductor called ADG5412BF.
Function of this product has Quad SPST Switches.
Manufacturers : Analog Devices
Image and pinout :

Some of the text within the PDF file :
Data Sheet Bidirectional Fault Protection and Detection, 10 Ω RON, Quad SPST Switches ADG5412BF/ADG5413BF FEATURES Overvoltage protection up to −55 V and +55 V Power-off protection up to −55 V and +55 V Overvoltage detection on source and drain pins Low on resistance: 10 Ω On-resistance flatness of 0.5 Ω 3 kV human body model (HBM) ESD rating Latch-up immune under any circumstance Known state without digital inputs present VSS to VDD analog signal range ±5 V to ±22 V dual-supply operation 8 V to 44 V single-supply operation Fully specified at ±15 V, ±20 V, +12 V, and +36 V APPLICATIONS Analog input/output modules Process control/distributed control systems Data acquisition Instrumentation Avionics Automatic test equipment Communication systems Relay replacement GENERAL DESCRIP [ ... ]
ADG5412BF PDF Datasheet Download
