Super source follower with feedback resistor and inductive peaking
摘要:
A system including a source follower circuit is disclosed. The source follower circuit configured as a voltage buffer that includes a first common-drain transistor that passes an input signal at the gate to an output loading capacitor at the source, and a second common-drain transistor that is used as a bias current source. The source follower circuit includes a first resistor at the drain of the first transistor generating a first voltage that is fed back through a first path through the gate of the second transistor so as to produce additional current to help the output signal catch up with the input voltage. The source follower circuit further includes an inductive element and bias circuit, which along with the first resistor, increases bandwidth and reduced settling time.
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