Other Parts Discussed in Thread: THVD1419, SN74CB3Q3306A, SN3257-Q1
I'm planning to design a system with RS485 transceiver (THVD1419), and want feature of turning ON/OFF the termination through micro-controller.
As of now I don’t see any part in that would meet this requirement.
The nodes of RS485 share common ground, so i'm planning to use TS5A3166 as shown below:
The differential output A & B of RS485 would swing rail to rail (0 to 5V) when not terminated and swing 2v around the common node of 2.5v when terminated.
My switch control signal is 3.3V rated and i'm going to supply TS5A3166 with 3.3V as well.
Do you see any concern of using the analog switch for this application? Please do suggest