I have the intention to design a time interleaved adc module based on four HMCAD1511.
The devices must be clocked by an interleaved differential clock at 1GHz with each HMCAD1511 in single channel mode.
I need to know if the analog inputs of the four converters can be connected in parallel.
Can I drive all the inputs by a single differential amplifier (BW must be 500MHz) ?
The second problem can be the VCM output of each converter. I know from the datasheet that this pin can be left in floating state because I cannot put all four VCM outputs in parallel.
Can be a problem I the input differential amplifier will use a compatible common mode voltage generated from an external source ?
Thank you !