1 GHz Variable-Gain Voltage Amplifiers DUPVA


  • Variable gain up to 70 dB (approx. x3000), switchable in 10 dB steps
  • Bandwidth 1 kHz to 1.2 GHz
  • Bandwidth independent of gain setting (guaranteed)
  • Noise figure down to 1.9 dB (330 pV/√Hz)
  • Local and remote gain control
Lower Cut-Off Frequency 1 kHz1 kHz
Upper Cut-Off Frequency 1.2 GHz1.1 GHz
Rise/Fall Time 380 ps390 ps
Gain20/30/40/50/60 dB30/40/50/60/70 dB
Gain Flatness0.15 dB0.15 dB
Input NoiseNF 3,0 dB (450 pV/√Hz)NF 1,9 dB (330 pV/√Hz)
Output Power13 dBm (−1 dB compression @ 100 MHz)12 dBm (−1 dB compression @ 100 MHz)
Input/Output50 Ω, SMA connector50 Ω, SMA connector
Power Requirements±15 V, +350 mA / −100 mA, typ.±15 V, +250 mA / −100 mA, typ.
Monitor OutputDC - 100 kHz monitor output at D-Sub connector, gain of 1
Control Interface3 opto-isolated digital inputs, TTL/CMOS compatible
Case165 x 105 x 45 mm (L x W x H), weight 510 g (1.1 lbs)

Indication of selected gain setting by LED. Output short-circuit protected. Power supply via 3-pin Lemo® socket. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet.

Variable gain from 1 kHz to 1 GHz

The ultra-wideband voltage amplifiers series DUPVA-1 is designed for fast and precision measurements with large dynamic range. Gain can be adjusted by the local gain selector or via an opto-isolated remote control interface. The gain independent frequency response guarantees for precise time resolved measurements at any gain setting. No significant change in rise time will occur when changing the gain setting which is essential for reliable time-resolved measurements. Additionally, the frequency response is optimized for being very flat over the full frequency range. No gain peaking or significant distortion will occur in pulse and transient measurements.


  • Oscilloscope and transient recorder preamplifier
  • Photomultiplier and microchannel plate amplifier
  • Signal booster for optical receivers and current amplifiers
  • Time-resolved pulse and transient measurements
  • Automated measurement systems

Typical Performance Characteristics

Related products / accessories

Power Supply

USB Control Interface LUCI-10