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What purpose is of the diodes? LF198/LF298 SH

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COARSE

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Hi, i would like to understand the following circuit:
Capture.PNG

It is a lf198 SH circuit. I have trouble understanding the point of the diodes?

When you are in sample mode there is Vin voltage over the capacitor, is this correct?

Are those diodes there to create a "voltage-protection". +- 0.7 V?
Or is it to maintain the feedback when in HOLD mode?


The datasheet:

https://www.ti.com/lit/ds/symlink/lf198-n.pdf


Thank you!
 

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