Patent ID: 11863165
Assignee: ANALOG DEVICES, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A circuit, comprising:
a ground node and a supply node, wherein the supply node is at a supply voltage with respect to the ground node;
a sampling switch to receive a voltage input signal and a gate voltage;
a bootstrapped voltage generator comprising a positive feedback loop, wherein:
the positive feedback loop is activated by a clock signal to generate the gate voltage for turning on the sampling switch; and
the positive feedback loop comprises:
an output transistor to output the gate voltage of the sampling switch;
an input transistor to receive the voltage input signal and the gate voltage; and
exactly one capacitor coupled to a drain of the input transistor, wherein the exactly one capacitor is to be charged at the supply voltage in a first phase; and
a jump start circuit coupled to a gate of the output transistor and configured to turn on the output transistor by decreasing a gate voltage of a gate of the output transistor toward a ground node voltage for a limited period of time during a startup of the positive feedback loop and to cease the decreasing the gate voltage before the gate voltage reaches the ground node voltage during the startup of the positive feedback loop.