Class AB MONTICELLII output stage with bias temperature instability tolerance

In an example, a system (100) includes an amplifier having an output stage configured to provide an output voltage (108), where the output stage includes a p-channel transistor (102) and an n-channel transistor (110). The system (100) includes a sense transistor (116) having a gate coupled to a gate of the p-channel transistor (102), where the sense transistor (116) is configured to sense a current (162) of the p-channel transistor (102) and generate a sense current (166). The system (100) includes a current mirror configured to provide the sense current (166) to a gate of a control transistor (140), the control transistor (140) having a source coupled to the gate of the p-channel transistor (102). The control transistor (140) is configured to adjust a gate current provided to the p-channel transistor (102) based on comparing the sense current (166) to a reference current (178). 在实例中，一种系统(100)包含放大器，所述放大器具有被配置成提供输出电压(108)的输出级，其中所述输出级包含p沟道晶体管(102)和n沟道晶体管(110)。所述系统(100)包含感测晶体管(116)，所述感测晶体管具有耦合到所述p沟道晶体管(102)的栅极的栅