Precision difference between LPS22HB and LPS25HB

Mudritsky.Yaroslav · ‎2016-10-29

Posted on October 29, 2016 at 12:25

Hi,

I can read from LPS25HB ST description page that it have ''High-resolution mode: 0.01 hPa RMS'' while on LPS22HB there's nothing about this.

But looking at either datasheed I've found that:

LPS22HB

PAccT +/-0.1hPa

Pnoise 0.0075hPa

LPS25HB

PAccT +/-0.2hPa

Pnoise 0.01hPa

So, despite LPS22HB doesn't have this description add, it's still more precise than LPS25HB.

It's correct or I'm missing something?

Uwe Bonnes · ‎2017-08-15

Posted on August 15, 2017 at 18:03

Both devices do not provide Min/Max values for accuracy, only a typical value in their datasheet. Neither provided are measured curves for an ensemble of real devices,. So it does not make sense to talk about precision for any of these devices.