ADS1299-6: Is it possible to use SRB2 and SRB1 as an equivalent to the absent TESTP and TESTN?

DhiliP Mohan

Part Number: ADS1299-6

Hi,

With ADS1299-6, is it possible to use SRB2 and SRB1 as an equivalent to the absent TESTP and TESTN? From figure 18 in the specification (sbas499c.pdf) it looks like SRB2 can't be routed to PGAP, without also connecting it to INxP.

Best Regards

over 5 years ago

0 Ryan Andrews over 5 years ago

TI__Guru 57276 points

Hello Dhilip,

Thanks for your post and welcome to our forum!

You are correct about the difference between SRB1 and SRB2. When SRB1 is enabled, the signal on the SRB1 pin is routed to all of the negative PGA inputs. At the same time, the connection between the INxN pin and the negative PGA input is disabled.

When using the SRB2 input, however, there is no way to disconnect the INxP pin.

Best Regards,

0 DhiliP Mohan over 5 years ago

Prodigy 20 points

Thank you Ryan!

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ADS1299-6: Is it possible to use SRB2 and SRB1 as an equivalent to the absent TESTP and TESTN?