STEM 125-14 DAC output

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izico
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Joined: Thu Apr 02, 2020 11:57 am

STEM 125-14 DAC output

Post by izico » Wed Mar 10, 2021 10:05 am

Hi I fried the IC connected to the IOUTA1/IOUTB1 of the AD9767 DAC, I've replaced the chip on IOUTA2/IOUTB2 to IOUTA1/IOUTB1 and it works well, so it's sure that this chip is bad.

It's a SOT23-6 package chip with top label LT ACC, the bottom label is 8G54, but I can't google online to find what's it.

I've checked AD9767 datasheet briefly and I guessed it should be a differential OPAMP chip, anybody knows the part number of this chip?

Thanks in advance, I want to buy a replacement chip online to save cost.

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redpitaya
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Joined: Wed Mar 26, 2014 7:04 pm

Re: STEM 125-14 DAC output

Post by redpitaya » Wed Mar 10, 2021 2:17 pm

Hi Izico,
Sorry for the delay.
You are looking for LT6200CS6 .

izico
Posts: 2
Joined: Thu Apr 02, 2020 11:57 am

Re: STEM 125-14 DAC output

Post by izico » Thu Mar 18, 2021 3:55 am

Thank you very much. I have some TI high speed opamps in hand and I tried a OPA690 and it looks to work as good as this LT6200 to me who mostly do power electronics with frequency below 1MHz.

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