INA200 Gain error vsTemperature

KANJI SHIBATANI

Other Parts Discussed in Thread: INA200, INA270, INA200-Q1, INA271, INA220-Q1, INA220

Hello

Would you please let me know how can I estimate Gain error vs Temperature about INA200?

I see Gain error ve Temp in case INA270/271 as 50ppm/deg-C maximum in data sheet http://www.tij.co.jp/jp/lit/ds/symlink/ina270.pdf

Is the value 50ppm/deg-C can be used for INA200 case?

Best Regards

over 8 years ago

0 Pete%20Semig over 8 years ago

TI__Mastermind 25805 points

Hello Kanji,
The INA200 is supported via our Current Sensing Forum, so I have moved your post for further support.

0 Mayrim Verdejo over 8 years ago

TI__Genius 15760 points

Hi Kanji,

I dont have this data available. Let me search in our database, will get back to you.

0 KANJI SHIBATANI over 8 years ago in reply to Mayrim Verdejo

Mastermind 6205 points

Dear Mayrim-san

Thank you for your reply.

I am sorry that the question is about INA200-Q1, not INA200.

My customer is using INA200-Q1 for their solenoid valve control board for current sensing of solenoid .

If you took time, would you please let me know the estimated date of your answer?

And also, please let me have additional question from customer.

Why there are no description about Gain error ~Temperature (ppm/deg-C) in INA200-Q1 even though INA270 and INA271 have?

Customer want to know your policy about data sheet description.

Best Regards

0 Mayrim Verdejo over 8 years ago in reply to KANJI SHIBATANI

TI__Genius 15760 points

Dear Kanji,

There is not policy on which parameters should be included or excluded on each datasheet. The parameters listed are chosen by the System's and design engineer as they find appropriate for device use. I don't have this data for INA220 or INA220-Q1 (already search in all my databases), but I will talk to designers and system's engineer to find out the reason why this parameter is not listed on this device.

I apologize for the inconvenient.

Regards

0 KANJI SHIBATANI over 8 years ago in reply to Mayrim Verdejo

Mastermind 6205 points

Dear Mayrim san

Thank you for your reply immediately .

I understood that you have no extra policy for definition of each parameter.

Anyway,

My ( customer's ) question is not INA220/INA220-Q1 but INA200 and INA200-Q1.

You have No data INA200, INA200-Q1?

Please confirm.

Would you please give us your estimated date of your answer about " Gain error vs Temperature ( ppm/deg-C) for INA200 Or INA200-Q1 " ?

Please allow me to ask you in hurry because our customer is potential customer (ODM of famous company in US).

Best Regards

0 Mayrim Verdejo over 8 years ago in reply to KANJI SHIBATANI

TI__Genius 15760 points

Hi Kanji,

Yes! Sorry, I meant INA200/INA200-Q1. Apologize for the typo.

It is after hours here in Tucson. I need to discuss with designers tomorrow, the data for this parameter seems like it was not collected as I cant find in the database and/or datasheet.

Let's see what information they have available!

Regards

0 Mayrim Verdejo over 8 years ago in reply to Mayrim Verdejo

TI__Genius 15760 points

Dear Kanji,

Our systems engineer provided an estimated value for the gain vs temperature spec of the INA200/INA200-Q1: 100ppm/deg-C.

This value is estimated using the following formula:

Regards,

0 KANJI SHIBATANI over 8 years ago in reply to Mayrim Verdejo

Mastermind 6205 points

Dear Mayrim-san,

Thank you for your quick answer!

I appreciate that.

0 KANJI SHIBATANI over 8 years ago in reply to KANJI SHIBATANI

Mastermind 6205 points

Dear Mayrim-san,

I had inquiry from customer again. Sorry to bother you...

Would you please let me confirm?

The value " 100 ppm/deg-C " from the formula is MAX. value?

Please advise.

Best Regards

0 Mayrim Verdejo over 8 years ago in reply to KANJI SHIBATANI

TI__Genius 15760 points

Hi Kanji,

Yes, correct. Please refer to the formula above. We used max values.

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INA200 Gain error vsTemperature