low power consumption while sampling every 1ms ADC

Learn MoreFAQsTutorials

4 posts / 0 new
Last post
Roie DAHAN
Offline
Last seen:6 months 2 weeks ago
加入:2018-11-19 16:32
low power consumption while sampling every 1ms ADC

Hi,

Please advise how to maintain low power consumption while sampling every 1ms ADC

(一个例子代码/应用注释be great)

Regards,

Roie

Device:
PM_Dialog
Online
Last seen:2 min 15 sec ago
Staff
加入:2018-02-08 11:03
Hi Roie DAHAN,

Hi Roie DAHAN,

In order to achieve low power consumption, there are two types of sleep mode in DA14585 device, the extended and the deep sleep mode. In extended sleep mode, only the System RAM corresponding of the image size stays switched on. In deep sleep mode, only the wake up controller or the POR circuit remains switched on depending on the option selected. This means, that all the peripheral block (including the ADC) are powered off, so you are not allowed to use the them in any of sleep modes.

Thanks, PM_Dialog

Roie DAHAN
Offline
Last seen:6 months 2 weeks ago
加入:2018-11-19 16:32
Hi,

Hi,

So, what is the lowest power mode that can be used while using ADC every 1ms ?

Thanks,
Roie

PM_Dialog
Online
Last seen:2 min 15 sec ago
Staff
加入:2018-02-08 11:03
Hi Roie DAHAN,

Hi Roie DAHAN,

As I mentioned in my previous, all the peripherals blocks including the ADC are powered off when the device enters any of sleep modes. So, the device should be in active mode while the ADP sampling. In general, the average current consumption in active mode is around 600uA. But there is no clear answer on that since it depends on multiple factors and the application of course. Did you try to measure the power consumption?
Thanks, PM_Dialog