Products > Amplifiers > Less than 5 kV

Trek Model 677B
High-Voltage Power Amplifier / Supply

  • Output Voltage:
  • Output Current:
  • Slew Rate:
  • Large Signal Bandwidth:
  • Gain:
  • 0 to ±2 kV DC or peak AC
    0 to ±5 mA DC or peak AC
    Greater than 15 V/µs
    DC to greater than 1.2 kHz (1% Distortion)
    200 V/V

The Model 677B is a high-voltage power amplifier/supply designed to provide precise control of output voltages. It can be operated in one of two modes: as a high-voltage amplifier when it is configured as a noninverting amplifier with a fixed gain or as high-voltage power supply that responds to front panel controls to command exact output voltage or current.
The 677B features an all-solid-state design for wide bandwidth, high slew rate and low-noise operation. The four-quadrant, active output stage sinks or sources current into reactive or resistive loads throughout the output voltage range. This type of output is essential to achieve an accurate output response and high slew rate demanded by a variety of loads such as highly capacitive or reactive loads.

Applications Include
  • Electrostatic beam deflection
  • Electrooptic modulation
  • Electrophoresis research
  • Piezoelectric poling and driving
  • Electrostatic chucks
Features and Benefits
  • Operable as a high-voltage amplifier (in a noninverting configuration) or as a high-voltage power supply
  • Four-quadrant output for driving capacitive loads
  • Closed loop system for high accuracy
  • Short-circuit protected for equipment protection
  • All solid-state design for maintenance free operation
  • DC-stable for programmable supply applications
  • Low output noise for ultra-accurate outputs
  • NIST-traceable Certificate of Calibration provided with each unit

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