NEGATIVE HIGH VOLTAGE HOT SWITCHING CIRCUIT

摘要

A biasing circuit includes cascoded transistors including a first transistor and a second transistor. A first gate of the first transistor is coupled to a second gate of the second transistor at a first node. The circuit also includes a voltage control circuit coupled to at least one of the first transistor or the second transistor. The voltage control circuit is configured to change a voltage level of at least one of the first transistor or the second transistor to allow voltage domain transition of an output signal in view of a change in state of an input signal without ramping a supply signal of the biasing circuit.

主权项

1. A circuit comprising:
a plurality of cascoded transistors comprising a first transistor and a second transistor, wherein a first gate of the first transistor is coupled to a second gate of the second transistor at a first node; a voltage control circuit coupled to at least one of the plurality of cascoded transistors, wherein the voltage control circuit is configured to change a supply voltage level at a terminal of at least one of the plurality of cascoded transistors to allow voltage domain transition of an output signal configured to be coupled to an output of the voltage control circuit in view of a change in state of a first signal input to the circuit without ramping a supply signal of the circuit; and a bulk controller coupled to a second node, the bulk controller configured to output a bulk signal via the second node.