ADS1198: ADS1198 and ADS1194 RLD CONNECTION

user6064816

Prodigy 140 points

Part Number: ADS1198

Hello.

ADS 1198 and ADS 1194 are used as 12 channels in "Standard Mode (Use CS1 and CS2)".

If I don't use the RLD, is the connection as attached document?RLD CONNECTION.pdf

over 5 years ago

0 Alexander Smith over 5 years ago

TI__Guru 55542 points

Hi,

The only change I suggest is to tie RLDREF to AVDD as well. The RC can be left open.

Make sure to keep the RLD buffer disabled in the register settings to save power.

0 user6064816 over 5 years ago in reply to Alexander Smith

Prodigy 140 points

Thank you, Alexander Smith.

Changing RLDREF to AVDD is difficult (already made PWB).
If there is no problem with the operation, I would like to keep it open, but is there any problem?

Set RC to OPEN.

RLD buffer is Power-Down (Config3: PD_RLD = 0 (Default)).

0 Alexander Smith over 5 years ago in reply to user6064816

TI__Guru 55542 points

Hi,

I do not think it will damage the device. You may see a slight increase in dissipated power.

0 user6064816 over 5 years ago in reply to Alexander Smith

Prodigy 140 points

Hello, Alex Smith.

I leave open if there is no damage or malfunction.

Is there any problem other than increasing power consumption?

0 Alexander Smith over 5 years ago in reply to user6064816

TI__Guru 55542 points

Hi,

No, there will not be any problem.

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ADS1198: ADS1198 and ADS1194 RLD CONNECTION