PB58

POWER BOOSTER AMPLIFIERS PB58 PB58A M I C R O T E C H N O L O G Y HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739 FEATURES WIDE SUPPLY RANGE — ±15V to ±150V HIGH OUTPUT CURRENT — 1.5A Continuous (PB58) 2.0A Continuous (PB58A) VOLTAGE AND CURRENT GAIN HIGH SLEW — 50V/µs Minimum (PB58) 75V/µs Minimum (PB58A) PROGRAMMABLE OUTPUT CURRENT LIMIT HIGH POWER BANDWIDTH — 320 kHz Minimum LOW QUIESCENT CURRENT — 12mA Typical EVALUATION KIT — See EK50 EQUIVALENT SCHEMATIC 3 +Vs Q2 Q1 Q3 IN 4 GAIN 6.2K 7 50K COM 5 COMP 8 Q9 Q10 3.1K Q7 Q11 Q8 2 CL Q4 Q6 Q5 OUT 1 APPLICATIONS HIGH VOLTAGE INSTRUMENTATION Electrostatic TRANSDUCERS & DEFLECTION Programmable Power Supplies Up to 280V p-p DESCRIPTION The PB58 is a high voltage, high current 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 voltage range and current capability of the booster. The PB58 can also be used without a driver in some applications, requiring only an external current limit resistor to function properly. The output stage utilizes complementary MOSFETs, providing symmetrical output impedance and eliminating second breakdown limitations imposed by Bipolar Transistors. Internal feedback and gainset resistors are provided for a pin-strapable gain of 3. Additional gain can ...