AD585 hold mode output

Question

Hi all, 
 Our customer are confused about the "Figure 9. Pictorial Showing Various S/H Characteristics" in the datasheet @ AD585. 
 "Figure 10: Hold Mode Droop" in the MT-090 Sample-and-Hold Amplifiers, we will assume that it operates like this droop decreasing. 
 "Figure 9. Pictorial Showing Various S/H Characteristics" in the datasheet @ AD585, droop is increasing. Is it incorrect understanding ? is it device characteristics @ AD585 ? 
 Best regards, sss

ADIApproved · Accepted Answer

Hi SSS, 
 The direction of the droop is dependent upon the direction of internal leakage currents. These leakage currents could be positive or negative and cause the hold capacitor to droop in either voltage direction. It could droop toward the positive or negative rail depending on the leakage current. 
 Best Rgds, 
 Alan

Electronic Design Services - PartnerZone

AD585 hold mode output

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