PB64DP PB64 PB64A RoHS Dual Power Booster Amplifier COMPLIANT FEATURES Wide Supply Range 20 V to 75 V High Output Current Up to 2 A Continuous Programmable Gain High Slew Rate 800 V/s Typical Programmable Output Current Limit High Power Bandwidth 1 MHz Low Quiescent Current 20 mA Typical (Total, Both Channels) APPLICATIONS LED Test Equipment LCD Test Equipment Semiconductor Test Equipment High Voltage Instrumentation Electrostatic Transducers and Deflection Piezoelectric Positioning and Actuation Programmable Power Supplies DESCRIPTION The PB64 is a dual high voltage, high current booster amplifier designed to provide voltage and current gain for a small signal, general purpose op amp. Including the power booster within the feedback loop of the driver amplifier results in a composite amplifier with the accuracy of the driver and the extended output cur- rent capability of the booster. The output stage utilizes complementary MOSFETs, providing symmetrical output impedance and elimi- nating second breakdown limitations imposed by Bipolar Junction Transistors. Although the booster can be configured quite simply, enormous flexibility is provided through the choice of driver amplifier, current limit and supply voltage. This hybrid circuit utilizes a Beryllia (BeO) substrate, thick film resistors, ceramic capacitors and semicon- ductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded alumi- num wires provide reliable interconnections at all operating temperatures. The PB64 is packaged in Apex Microtechnologys 12-pin power SIP. The case is electrically isolated. Apex Microtechnology Inc. Jan 2020 www.apexanalog.com All rights reserved PB64U Rev CPB64 PB64A TYPICAL CONNECTION Figure 1: Typical Connection R R I F V +V IN S +15V 20F 100nF 100nF R CL Op IN Amp V OUT +V S C L PB64 C C GAIN 100nF R L -15V C -V C S R GAIN 100nF 20F -V S 2 PB64U Rev C