| 摘要 |
PURPOSE:To reduce an abnormal signal in an output signal by connecting a resistance in parallel to a sample/hold capacity and increasing the drain current of a transistor. CONSTITUTION:By connecting the resistance 2 in parallel to the sample/hold capacity 1, a 'flaw' can be reduced. In this case, a drain current-drain voltage characteristic is only changed linearly to the change of a Vg (gate voltage), therefore, the input/output characteristic of the transistor 3 is not changed. Thereby, in a sample/hold circuit, an output noise level can be reduced without sacrificing the input/output characteristic and the abnormal signal in the output signal can be reduced.
|
