Patent ID: 9698788
Date: 2017-07-04
CPC Classifications: H03K

Claim:
1. An interface device comprising: a first transistor; a pull-up unit, wherein a first gate terminal of the pull-up unit is electrically connected to a source terminal of the first transistor; a pull-down unit, wherein a drain terminal of the pull-down unit is electrically connected to a drain terminal of the first transistor; a first power supply terminal, which is electrically connected to a source terminal of the pull-up unit; a ground terminal, which is electrically connected to a source terminal of the pull-down unit; an output signal terminal, which is electrically connected to each of a drain terminal of the pull-up unit and the drain terminal of the pull-down unit; and a bias unit, wherein an output terminal of the bias unit is electrically connected to a gate terminal of the first transistor, and wherein the bias unit comprises: