HDC2010: accuracy problem of measurement

user021864

Intellectual 2145 points

Part Number: HDC2010

Hi,

My customer is wondering what are the factor which may effect the accuracy of this part?

Can you help us to understand where may the errors comes from?

Please let us know if further information needed.

Thanks for your help.

over 6 years ago

0 Amit Ashara over 6 years ago

TI__Guru**** 244400 points

Hello user021864

The following technical collateral shows what affects the humidity sensor in general and may cause errors

www.ti.com/.../snia025.pdf

0 user021864 over 6 years ago in reply to Amit Ashara

TI__Intellectual 2145 points

Hi Amit,

After checking on the app note, there are several reason may cause the damage offset of sensor,

can you help to let us know how to identify if the sensor is already damage by the chemical material?

Thanks for your help.

0 Amit Ashara over 6 years ago in reply to user021864

TI__Guru**** 244400 points

Hello user021864

The only way to know if the sensor is damaged is to return the device to TI for failure analysis. However at the customer site, questions on the assembly process, cleaning, exposure to solvents, can be asked to better understand.

0 Keep Chen over 6 years ago

Prodigy 10 points

Hi Sir,

According to specification, the accuracy of HDC2010 is based on Vdd 1.8V.
We use Vdd 3.3V in our design.
Is there any accuracy difference between Vdd 1.8V and Vdd 3.3V supply?
Did you have any accuracy information for HDC2010 with Vdd 3.3V power supply?
Thanks for your time.

0 Amit Ashara over 6 years ago in reply to Keep Chen

TI__Guru**** 244400 points

Hello Keep,

As long as the device is in the recommended operating range, the accuracy parameters will be valid.

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HDC2010: accuracy problem of measurement