Chip ID

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Hello,
I am looking for a datasheet for a chip labeled
39AR40M (see pic below). However I’ve searched
all over for it and the number doesn’t seem to come up.
I'm guessing that its some sort of op amp-but thats just
a guess. There’s a Texas Instruments logo just before the
number so I went to their website but was unsuccessful
in locating it. Have any of you guys seen this one before?

Thanks.
 

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