The PA168 is a high voltage MOSFET operational amplifier with a monolithic amplifier core designed for high density power applications with high output currents or voltages. The device is designed for output voltages up to 205V, with the PA168 providing 4A (8A A grade) of continuous current. Separate supplies for the amplifier core and the output stage optimize the overall power dissipation in the devices. The PA168 offers a wide-range, temperature compensated current limit. An additional over-current flag allows for a flexible implementation of system protection, with an output disable function adding another layer of optional protection. External compensation provides the user flexibility in choosing optimum gain and bandwidth for the application.