Trouble using LTC1609 ADC

Hi,

I’m having problems with the ltc1609 adc to work. I really don’t understand how to use it. I’ve tried making some tests to see if the adc is working fine by doing some examples from the datasheet (http://cds.linear.com/docs/en/datasheet/1609fa.pdf) but it’s not working fine. The busy signal never goes down when I change to low de R/C (figure 8 from datasheet).

Can someone help me with this IC. Maybe some example code or advise. I’ll really appreciate it.

Thank you very much.