Bias generation for common drain bidirectional switch driver

A circuit comprising:

• a pair of transistors having a common drain, a first source, a second source, a first gate, and a second gate;
• a first driver having a first bias terminal, a first reference terminal, a first driver input, and a first driver output, the first reference terminal coupled to the first source, and the first driver output coupled to the first gate;
• a second driver having a second bias terminal, a second reference terminal, a second driver input, and a second driver output, the second reference terminal coupled to the second source, and the second driver output coupled to the second gate;
• and
• a bias generator having a first input, a second input, a first bias output, and a second bias output, the first input coupled to the first source, the second input coupled to the second source, the first bias output coupled to the first bias terminal, and the second bias output coupled to the second bias terminal, wherein the bias generator is configurable to generate, based on a supply voltage, a first bias voltage at the first bias output and a second bias voltage at the second bias output.

A circuit comprising:

• a first input port;
• a first output port;
• a second output port;
• a first bidirectional switch coupled between the first input port and the first output port, the first bidirectional switch including a first switch driver, a second switch driver, and a first bias generator configurable to generate, based on a first supply voltage, a first bias voltage for the first switch driver and a second bias voltage for the second switch driver;
• and
• a second bidirectional switch coupled between the first input port and the second output port, the second bidirectional switch including a third switch driver, a fourth switch driver, and a second bias generator configurable to generate, based on a second supply voltage, a third bias voltage for the third switch driver and a fourth bias voltage for the fourth switch driver.