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ADS1299 Datasheet vs Evaluation Kit Schematic

Carson Hammoser1

Prodigy 90 points

Other Parts Discussed in Thread: ADS1299

I noticed that the ADS1299 datasheet (SBAS499A) latest rev shows that pin 64 is reserved, and an output, and states that one should "Leave as open circuit". However, in the Evaluation Kit documentation (SLAU443, May 2012) schematic shows pin 64 tied to GND (pg 50)! Is there a mistake on the schematic? I can't see that an output should be tied to GND.

Also, are the design files &/or gerbers for the evaluation board available?

over 13 years ago

0 Tom Hendrick over 13 years ago

TI__Guru**** 181751 points

Hi Carson,

Welcome to our forum! We'll look into the ADS1299 documentation discrepancies and post the Gerber files to the Design Notes page ASAP.

0 Tony Calabria over 13 years ago

TI__Mastermind 43915 points

Hi Carson,

Either tying pin 64 to GND or leaving it floating is alright. My recommendation is to pull it to ground through a weak pull down resistor as I do not like leaving pins floating in final designs.

Regards,

Tony

0 Abdulkadir KAYIKLI over 13 years ago in reply to Tony Calabria

Prodigy 30 points

Hi Tony,

I have an ADS1298ECG-PDK and ADS12999EEG-PDK. I already downloaded the firmware from ftp.ti.com. But I do not know what is the password.

Can you send me a password?

abdulkadir@hayriya.com

Best regards,

Abdulkadir.

0 Greg Hupp over 13 years ago in reply to Abdulkadir KAYIKLI

TI__Mastermind 23235 points

Abdulkadir -

You will receive an email shortly containing the requested information.

0 David Gorczyca over 12 years ago in reply to Tom Hendrick

Prodigy 40 points

Where are the Gerber files posted exactly? Sorry I am obviously missing them somehow.

0 Greg Hupp over 12 years ago in reply to David Gorczyca

TI__Mastermind 23235 points

Mr Gorczyca -

A picture of the layout/gerber files is shown in the user guide for reference. If you need the actual gerber files, they are available @ http://e2e.ti.com/support/data_converters/precision_data_converters/w/design_notes/1399.gerber-files-for-the-ads1x9xecgfe-pdk-boards.aspx

0 stuart maceachern over 11 years ago in reply to Tom Hendrick

Prodigy 40 points

hi , I would be interested in receiving the ads1299 schematics and gerber files as well . Can I get those ?

thanks,

Stuart MacEachern Argylle Engineering

0 Greg Hupp over 11 years ago in reply to stuart maceachern

TI__Mastermind 23235 points

The schematics are located in the back of the user guide. We will sent the schematics shortly