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High speed sample and hold

2017-08-18 12:40  
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This circuit exhibits a 10 V acquisition time of 900 ns to 0% accuracy and a droop rate of only 100 ?μ-V/ms at 25?° C ambient condition. An even faster acquisition time can be obtained using a smaller value hold-capacitor. By decreasing the value from 1000 pF to 220 pF, the acquisition time improves to 500 ns for a 10 V step
High speed sample and hold

However, the droop rate increases to 500 /AV/ms.



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