PB64A

PB64 PB64A Dual Power Booster Amplifier RoHS 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/µs Typical Programmable Output Current Limit High Power Bandwidth – 1 MHz Low Quiescent Current – 20 mA Typical (Total, Both Channels) PB64DP 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‐...