INA225: Step response waveform

user4979989

Intellectual 2800 points

Part Number: INA225

Hi team,

Do you have any zooming waveform to show the step response like below one? The time scale < 5us per div will be better.

Thank you.

Regards,

Allen

over 7 years ago

0 Guang Zhou over 7 years ago

TI__Mastermind 34490 points

Please refer to the following for a distribution plot

Regard, Guang

0 user4979989 over 7 years ago in reply to Guang Zhou

TI__Intellectual 2800 points

Hi Sir,

Is all curve INA output? Can you label extremely fast and slow curves condition?
Looks good but can you also provide the change of input?
Thank you.

0 Guang Zhou over 7 years ago in reply to user4979989

TI__Mastermind 34490 points

Hi,

Yes these a collection of INA outputs with 2V step. The input is an identical corresponding step input.

They represent the possible variation in a large quantity of samples due to variation in the device itself, not due to change in input. The datasheet curve can be viewed as an average of this set of curves.

I hope this answered your question.

Regard, Guang

0 user4979989 over 7 years ago in reply to Guang Zhou

TI__Intellectual 2800 points

Hi Sir,

Now I know the step response of INA output step response, but how about the input to output delay?
Customer would like to know the delay time duration from input(IN+ and IN- difference) to start to output.
Thank you!

0 Guang Zhou over 7 years ago in reply to user4979989

TI__Mastermind 34490 points

Hi,

The delay you’re referring to is negligible compared to rise time. Based on the plot I provided earlier, you can assume the total settling time to be anywhere between 5 to 10+uS depending on desired accuracy.

Regard, Guang

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INA225: Step response waveform