PA168

PA168 is an Apex Microtechnology high-voltage power operational amplifier in a 52-pin Power Quad (20 x 20 mm) package — the high-current member of Apex's 200 V power op amp line, rated 4 A continuous and 10 A peak, with output capability up to 205 V total supply and 52 W internal dissipation. Apex lists the family in volume production with a formal Rev A datasheet. Note that some secondary reporting misstates the A-grade variant's 8 A figure as this part's continuous rating; the manufacturer's figure for the standard PA168 is 4 A continuous. Selection advice: choose the PA168 over the PA167 on this site when the load genuinely needs multi-amp continuous drive — motor windings, magnetic bearings and high-capacitance piezo stacks — and step to the separate PA168A order code only if the 8 A continuous class is truly required. Budget safe operating area and heatsinking before gain and bandwidth: at these voltages the SOA curve, not the current headline, decides what the amplifier survives. Parameters verified against Apex Microtechnology documentation.