ADS1298: ADS1298 ADC RESOLUTION CHANGES TO 16 BIT AT 32KHZ SAMPLING RATE?

Sumit Mourya

Part Number: ADS1298
Other Parts Discussed in Thread: ADS1294

Hello all,

For ADS1294/1296/1298 the ADC resolution changes to 16 Bits at 32khz sampling rate? I want to use ADS1294/ADS1298 for EMG application.

As per data sheet for 32KSPS the ADC OUTPUT IS 24 status bits + 16 bits per channel × 8 channels = 152 bits. Is this correct?

over 2 years ago

0 ChienChun Yang over 2 years ago

TI__Mastermind 19815 points

Yes. you read that correct -

0 Sumit Mourya over 2 years ago in reply to ChienChun Yang

Expert 1790 points

Are you sure with this?? I was reading in the forum that The datasheet info is not correct & the ADC samples are always 24 bit even at maximum sampling rate of 32Khz.

+1 ChienChun Yang over 2 years ago in reply to Sumit Mourya

TI__Mastermind 19815 points

Hi,

You are right -

https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/537491/ads1298-evaluation-board-output-data-bits

"The statement on page 53 is a mistake. The data will always be 24 bits in length."

And, there is no 64-kSPS data rates available.

Thanks

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ADS1298: ADS1298 ADC RESOLUTION CHANGES TO 16 BIT AT 32KHZ SAMPLING RATE?