Product specifications
PB58A - Power Booster Amplifier, 300V, 2A, "A" Grade
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 be achieved with a single external resistor. Compensation is not required for most driver/gain configurations, but can be accomplished with a single external
capacitor. Enormous flexibility is provided through the choice of driver amplifier, current limit, supply voltage, voltage gain and compensation.
This hybrid circuit utilizes a beryllia (BeO) substrate, thick film resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is electrically isolated and hermetically sealed using one-shot resistance welding. The use of compressible isolation
washers voids the warranty.
8-PIN TO-3 PACKAGE STYLE CE
FEATURES
• WIDE SUPPLY RANGE — ±15V to ±150V
• HIGH OUTPUT CURRENT — 2.0A Continuous
• VOLTAGE AND CURRENT GAIN75V/µs Minimum
• PROGRAMMABLE OUTPUT CURRENT LIMIT
• HIGH POWER BANDWIDTH — 320 kHz Minimum
• LOW QUIESCENT CURRENT — 12mA Typical
• EVALUATION KIT — EK50
APPLICATIONS
• HIGH VOLTAGE INSTRUMENTATION
• Electrostatic TRANSDUCERS & DEFLECTION
• Programmable Power Supplies Up to 280V p-p
- APEX Microtechnology product -