ADS7828: ADS7828: Unused analog input

SHIGEKI KITAURA

Prodigy 20 points

Part Number: ADS7828

Dear Tom,

I would like to add more questions to this.

If the AIN of this device is not used, what Ω should be used for termination to GND ?

What should be with multiple unused analog input terminals if this circuit is fixed and does not change ?

Is it okayto short-circuit all unused terminals and terminate with a single resistor (10k ohm?) ?

Or should it be terminated for each terminal ?

Regards,

SNDS

over 4 years ago

0 Tom Hendrick over 4 years ago

TI__Guru**** 180931 points

Hi Shigeki,

Welcome to our e2e forum and thank you for the interest in the ADS7828. You can use a 10K to ground, if you want to tie all unused inputs together and ground them through 10 K, that is fine too.

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ADS7828: ADS7828: Unused analog input