ADS8698: input capacitance at analog input pin AIN_xP.

Christian Merz

Part Number: ADS8698

I could not find any value for the input capacitance at the analog pins of the adc. As we havce a driver critical application and can drive only max 50pF i have to calculate all parasitc capacitive loads at the analog signal. Input resistance is given as 1MR, but the ESD protection could add some pF at the input pin. Does anyone know something about the expacted C-load ?

Thanks in advance, Ch.Merz

over 7 years ago

0 Cynthia over 7 years ago

TI__Mastermind 25020 points

Hello Christian,
We are looking into this and will get back to you shortly

Regards
Cynthia

0 Cynthia over 7 years ago

TI__Mastermind 25020 points

Christian,

I was able to confirm the capactiance, at the anlog input pin (AIN_xP) the capactiance to ground is 700 fF (femto). Seems there is plenty of head room on the limit for your application.

Hope this helps

Cynthia

Data converters

Data converters forum

ADS8698: input capacitance at analog input pin AIN_xP.