ADS1247: 18 Channel Multiplexing

ABHAY VASHISTHA

Other Parts Discussed in Thread: ADS1247, ADS124S08

Tool/software:

Hello All,

I need 18 RTD channel interfacing with one SPI channel of FPGA. Please suggest how to interface ADS1247 with FPGA . I can not spare 18 CS pins for SPI chip selection. Can i use multiplexer for Chip select pins?

Thanks

Abhay

9 months ago

+1 Bryan Lizon86 9 months ago

TI__Mastermind 48371 points

Hi ABHAY VASHISTHA,

I see that you asked a similar question about the ADS124S08 here: https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1410522/ads124s08-18-channel-3-wire-rtd

I think the ADS124S08 is the best option for this application because the ADS124S08 is actually the next generation version of the ADS1247. So I can answer your additional questions in that e2e post, and I will close this post.

-Bryan

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ADS1247: 18 Channel Multiplexing