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    I'm using A 74ls244 to drive 2 ADG452 switches for an 8 level attunuator on the output of an AD624. I'm using a mechanical rotary switch for the inputs of the 74ls244. Do I need to incorporate a debounce chip on the inputs? The level of attenuation should be switched in advance of any signal input, but I can't rule out the switching happening due to misuse. any comments are appreciated.

Thanks for  your help,