# ADS1115 and sampling speed

**URL:** <https://community.openenergymonitor.org/t/ads1115-and-sampling-speed/2860>\
**Category:** Hardware\
**Tags:** ads1115\
**Created:** [22 January 2017 18:10 UTC](https://community.openenergymonitor.org/t/ads1115-and-sampling-speed/2860 "2017-01-22T18:10:45Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![dBC](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/d/5f9b8f/32.png) [@dBC](https://community.openenergymonitor.org/u/dBC)\
**Post date:** [24 January 2017 21:49 UTC](https://community.openenergymonitor.org/t/ads1115-and-sampling-speed/2860/19 "2017-01-24T21:49:01Z")

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> [@ybizeul](#):
>
> Is the fact that I’m getting some values twice (because of the 860SPS) a problem?

That’s probably not a good thing and warrants further investigation. Which part are you using? The title suggests an ADS1015 but I see references to ADS1115. It looks like the former can do 12-bit samples at 3300 SPS and the latter can do 16-bit conversions at 860 SPS.

I thought of you OEMers the other day. I’m currently using some STM32 processors on a project unrelated to energy monitoring, but when I discovered the phenomenal ADC performance I couldn’t help but think what a great OEM platform it would make. It can do 12-bit conversions in 1 usec, do a continuous sequence of them in the pin-order of your choosing, and load the results directly into your C datastructure, all without any CPU interaction at all. Imagine an interrupt every 1 msec to say “I’ve just loaded those 1,000 12-bit samples you requested into your first array and I’m currently working on filling your second array with a new 1,000 samples”.

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