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ADS1298: input capacitor value of the CLK pin

Part Number: ADS1298



Hello everyone, hope this finds you well~


My question is about the parameter of the input capacitor value of the ADS1298/1299 series.



since I plan to use several chips to make a multi-channel system, which is driven by an external clock source. But I don't sure the driven capability of the active crystal oscillator is enough or not, so I have to use a clock buffer to drive the several ADS1298 chips. After checking several clock buffer chips, I found the maximum driven capability, which characterizes by load capacitor value, is limited for those clock buffer chips., such as 20pF. So I have to check the input capacitor value of the CLK input pin of the ADS1298 chip to make sure which type of clock buffer chip I need to use while I cannot find the parameter in the datasheet.


Looking forward to your reply~