Apex Microtechnology Inc. (Tucson, AZ) announced the new PA17, a high-voltage MOSFET power operational amplifier that extends the performance limits of power amplifiers in slew rate and power bandwidth, while maintaining high current and power dissipation ratings.
The PA17 shutdown feature allows ultra-low quiescent current for standby operation or load protection by disabling the entire amplifier. Boost-voltage inputs allow the small signal portion of the amplifier to operate at a higher voltage than the high-current output stage. The amplifier is then biased to achieve close linear swings to the supply rails at high currents for extra-efficient operation. External compensation tailors performance to user needs. A four-wire sense technique allows current limiting without the need to consider internal or external milliohm parasitic resistance in the output line.
