ADS7066: ADS7066 data acquisition phase

Vijayakumaran Vijay

Part Number: ADS7066

Hello, data sheet says that the device enters an acquisition phase at the end of the conversion process - section 7.1 "At the end of the conversion process, the device enters an acquisition phase".

I’d like to check how the acquisition process starts? Does it follow the conversion process automatically or is it triggered by the falling edge of CS signal?

10 months ago

0 Tom Hendrick 10 months ago

TI__Guru**** 176131 points

Hi Vijay,

It's probably easiest to look at Figure 6-1 on page 9 of the ADS7066 datasheet. The /CS pin going high stops the acquisition and starts the conversion process. Returning the /CS pin low starts the acquisition phase for the next conversion cycle.

0 Vijayakumaran Vijay 10 months ago in reply to Tom Hendrick

Prodigy 20 points

Hello Tom, thank for the response!! Does this mean that the acquisition phase could last the entire time /CS is low? Noticed the data sheet mentioned 800ns but seems like that the MIN duration, MAX can be much longer?

0 Tom Hendrick 10 months ago in reply to Vijayakumaran Vijay

TI__Guru**** 176131 points

Hi Vijay,

Yes - acquisition time happens through the entirety of /CS low. The 800nS is a minimum value, there is no max limit.

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ADS7066: ADS7066 data acquisition phase