DDC112 Range Drift stability data

Keiichi Kajino

Expert 2365 points

Other Parts Discussed in Thread: DDC112

Hi, folks

Is there any long term stability data for "Range Drift"?

over 9 years ago

0 Adam Sidelsky over 9 years ago

TI__Guru 66550 points

Hello,

Let me check into this for you and I will get back to you.

Regards,

-Adam

0 Adam Sidelsky over 9 years ago

TI__Guru 66550 points

Keiichi,

Unfortunately Range Drift data was not taken when this device was characterized many years ago. Which range and for what time scale were you looking for?

Regards,

-Adam

0 Keiichi Kajino over 9 years ago in reply to Adam Sidelsky

Expert 2365 points

Hi Adam

Thank you for your reply.

Due to Bon vacation season in Japan now. I will ask customer after they shows up.

BTW,
If range and time is defined, can you show some data or info for long range stability?
Beacause If I ask it to customer, they expect someting reply.

0 Adam Sidelsky over 9 years ago in reply to Keiichi Kajino

TI__Guru 66550 points

Keiichi-San,

Depending on my loading and the time requested by the customer, It is possible that I could take data for this experiment. Let's discuss this once you speak with the customer.

Which customer is this for?

Regards,

-Adam

0 Keiichi Kajino over 9 years ago in reply to Adam Sidelsky

Expert 2365 points

Hello Adam,

Due to sensitve information, could you send me a email at (keiichi_kajino@ktl-corp.co.jp)?. I will then reply with business info.

0 Keiichi Kajino over 9 years ago in reply to Keiichi Kajino

Expert 2365 points

Adam,

Thank you for your reply. Also I got info from customer.
They uses both Range 1 and 7, and integ. time is variable (0.5ms to 444ms).
It seems that they would like to know long range stability for internal capacitor.

I just pass this information from customer, if you want to know more detail (i.e. need to fix integ. time for measurement)
please let me know, I will discuss with customer again.

0 Adam Sidelsky over 9 years ago in reply to Keiichi Kajino

TI__Guru 66550 points

Keiichi,

Stability for times less than 1 second such as this should have no problem with stability. I have not measured exactly their case but we often use the the DDC devices for several minutes and do not see stability issues.

Is the customer seeing a problem that they are trying to resolve with my help?

Regards,

-Adam

0 Keiichi Kajino over 9 years ago in reply to Adam Sidelsky

Expert 2365 points

Adam,

I got confused.

I guess the DDC112 integ. time is 1 second maximum.
Our customer want to know long term stability while few month ~ a year in case of 440ms integ. time.
Is that mean the DDC112 is stable all integ. time(Because max is 1 second) or just 1 seconds stability?

I guess this comes the long term stability of internal capacitor.

0 Keiichi Kajino over 9 years ago in reply to Keiichi Kajino

Expert 2365 points

Adam,

Could you give us your opinion for this?

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DDC112 Range Drift stability data