REF3125: Typical initial accuracy at room temperature

Yoke Mun Phang

Part Number: REF3125
Other Parts Discussed in Thread: REF35

Hi. I'm trying to do an accuracy calculation for my data acquisition circuit. The datasheet of REF3125 lists initial accuracy as +/-0.2% as min/max at 25C. What is the typical number? Or any histogram graphs for initial accuracy? Thanks.

over 3 years ago

0 Trailokya Rai over 3 years ago

TI__Genius 11401 points

Hi Yoke

Max and min are mean +/- 6 sigma numbers.

We have new generation Nano power (68nA typical IQ) series reference REF35 which has 0.05% max initial accuracy. Its has better temp drift coefficient (10ppm/C) and Long term drift spec compare to REF31. It can be evaluated on the same layout as REF31. Check Figure 12-2 (page21) in REF35 preproduction data sheet.

Regards

Trailokya

0 Yoke Mun Phang over 3 years ago in reply to Trailokya Rai

Prodigy 80 points

Hi, Trailokya. I already have the REF3125 on hand. I just need to do a fair comparison between using a REF3125 in my design versus other solutions using the typical spec. Can I have the typical accuracy for REF3125? Or a histogram of the accuracy distribution (to estimate the 1 sigma) for typical spec?

Thanks,

Yoke Mun

0 Trailokya Rai over 3 years ago in reply to Yoke Mun Phang

TI__Genius 11401 points

Hi Yoke

I will check and let you know.

Regards

Trailokya

0 Trailokya Rai over 3 years ago in reply to Trailokya Rai

TI__Genius 11401 points

HI Yoke

I will reach out to you through mail.

Regards

Trailokya

0 Yoke Mun Phang over 3 years ago in reply to Trailokya Rai

Prodigy 80 points

Hi, Trailokya. I still have not hear from you about the typical accuracy for REF3125. Please reply. Thanks. ~YM

0 Trailokya Rai over 3 years ago in reply to Yoke Mun Phang

TI__Genius 11401 points

Hi Yoke

I have messaged you. Our field team will also contact you.

Regards

Trailokya

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REF3125: Typical initial accuracy at room temperature