ADS4122: ADS4122 LVDS clock drive

Zeev Gerber

Intellectual 500 points

Part Number: ADS4122

Hi,

I will using LVDS clock driver to drive the clock input of the ADS4122.

do I need 100 termination?

in the DS of 4122 I find the followed:

pls. advise

Zeev Gerber

over 1 year ago

0 Chase W over 1 year ago

TI__Mastermind 18215 points

Hi Zeev,

For the LVDS clock input, yes, a 100ohm termination on the ADC side of these AC coupling capacitors is needed. See below from section 9.2 Typical Application (page 72) of the datasheet:

Regards, Chase

Data converters

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ADS4122: ADS4122 LVDS clock drive