INA237: ENOB

Jeff YANG

Part Number: INA237

Tool/software:

Hi,

May I know the INA237 ENOB calculation formula?

I found below 2 formula is normally we calcute for ENOB? May I know what is for INA237 or for all TI power monitor product?

Thanks!

Jeff

0 Mitch M 2 months ago

Hello Jeff,

We use the top equation:

Regards,

Mitch

0 Mitch M 2 months ago in reply to Mitch M

Hello Jeff,

Looking into this more, our ENOB equation stems from this equation:

and when we plug in our SINAD into this equation and simplify, we get:

Which is what we use for our calculations.

Regards,

Mitch

0 Jeff YANG 2 months ago in reply to Mitch M

Hi Mitch,

May I know the VFS and Noisepp mean? thanks!

Jeff

+1 Mitch M 2 months ago in reply to Jeff YANG

Hello Jeff,

VFS is the Full Scale Input Voltage Range

NoisePP is the ADC Peak To Peak Noise

Regards,

Mitch

Amplifiers forum