A driver circuit having an adjustable output signal includes a logic circuit configured to receive an input signal into a first input terminal and an output circuit coupled to the logic circuit, wherein the output circuit is configured to generate, at an output terminal of the output circuit, an output signal having a signal level that changes in response to a signal level of the input signal. The driver circuit further includes a feedback circuit coupled to a second input terminal of the logic circuit. The feedback circuit includes first and second gate terminals coupled to the output terminal and a third gate terminal coupled to a control signal supply, wherein the feedback circuit is configured to control a maximum level of the output signal from the driver circuit based on an operating threshold of the feedback circuit as set by a control signal generated by the control signal supply.