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BUF602: Function of Cpn in DEM-BUF-SOT-1A

Part Number: BUF602
Other Parts Discussed in Thread: DEM-BUF-SOT-1A

Dear TI experts,

I'm designing a circuit for the BUF602 based on the schematics in the DEM-BUF-SOT-1A demo fixture (

My question is what is the function of Cpn in DEM-BUF-SOT-1A and can it be removed from the design?

In my application, the input signal is a 10MHz half-sine wave with amplitude of 0 to 1.8V, loaded with a 300pF capacitor.

Besr regards,