ADS130E08 - unused input pins and ch skip

Hirotaka Matsumoto

Other Parts Discussed in Thread: ADS130E08

Hi all,

Would you mind if we ask ADS130E08?

<Question1>
About unused input pins, how should we treat?
Should these pins be connected to AVDD or AGND?
(The datasheet recommends that connect unused IN1x to IN8x terminals to AVDD. We think both OK.)
Is our recognition correct?

<Question2>
About unused CHs, is it possible to read the data with skipping over unused CHs?
As our customer's request, they would like to read the data which is the designated channel.

Kind regards,

Hirotaka Matsumoto

over 10 years ago

0 Hirotaka Matsumoto over 10 years ago

Guru 27585 points

Hi team,

We guess that your team are always busy, but if you reply to our question, we will appreciate you.

Kind regards,

Hirotaka Matsumoto

0 Greg Hupp over 10 years ago

TI__Mastermind 23235 points

Hello Matsumoto-san -
1. Yes, please use the information in the datasheet for the unused pin connections.
2. When reading data, you can read a channel data and then discard the data if you are not interested in the data. You must provide SCLKs in order to get to the later data channels.

0 Hirotaka Matsumoto over 10 years ago in reply to Greg Hupp

Guru 27585 points

Greg san

Thank you for your reply.
OK, we got that we can get only interested in or designated the data(CH).

Kind regards,

Hirotaka Matsumoto

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ADS130E08 - unused input pins and ch skip