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Forum Post: RE: LM98640 weird behavior

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Hello Kirby! Yes sorry I forgot to mention that I actually use the space grade product in the ceramic package LM98640W-MPR (prototypes parts). I use the CDS mode to digitize an e2V CCD. The OS+ pin is connected to ground with a 100n capacitor and also connected to the VCLP pin which is grounded with 4.7uF + 100nF (so OS+ is grounded with 4.7uF+200nF) . But I'm not sure to well understand how to use the VCLP pin and if I need to use it. When you say "in S/H mode, OS- must never be taken higher than OS+" , do you mean that it is destructive ? or simply a non-sense ? I'll try what you suggest and come back to you. Thanks

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