DRIVER CIRCUIT INCLUDING DRIVER TRANSISTORS WITH CONTROLLED BODY BIASING

摘要

A drive circuit includes a first drive transistor coupled between a first supply node and an output pad of an integrated circuit and a second drive transistor coupled between a second supply node and the output pad. The first drive transistor and second drive transistors are controlled by a control signal. A body bias generator circuit is configured to apply a variable first body bias to the first transistor and a variable second body bias to the second transistor. The variable first and second body biases are generated as a function of the control signal and a voltage at the output pad.

主权项

1. A circuit, comprising:
a first drive transistor coupled between a first supply node and an output node, the first drive transistor having a first control terminal configured to receive a control signal, and further having a first body terminal; a second drive transistor coupled between a second supply node and said output node, the second drive transistor having a second control terminal configured to receive said control signal, and further having a second body terminal; a circuit pad coupled to the output node; and a body bias generator circuit configured to apply a first body bias voltage to said first body terminal and a second body bias voltage to said second body terminal; wherein said first and second body bias voltages vary as a function of said control signal and a voltage at said pad.