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  • Gain Switchable in 10 dB Steps up to 70 dB
  • Bandwidth 1 kHz to 1.2 GHz
  • Bandwidth Independent of Gain Setting (Guaranteed)
  • 1.9 dB (330 pV/√Hz)
  • Local and Remote Gain Control

Voltage amplifiers with variable Gain – 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

Low Noise Input/Output Cable: CAB-LN1 Low Noise Cable

The LUCI-10 amplifier interface allows remote control of FEMTO amplifiers and photoreceivers with a remote control capability from a standard Windows PC with USB port.

Ultra-Wideband Voltage Amplifiers – 1 GHz

Lower Cut-Off Frequency1 kHz1 kHz
Upper Cut-Off Frequency1.2 GHz1.1 GHz
Rise/Fall Time380 ps390 ps
Gain20/30/40/50/60 dB30/40/50/60/70 dB
Gain Flatness±0.15 dB±0.15 dB
Input NoiseNF 3.0 dB (450 pV/√Hz)NF 1.9 dB (330 pV/√Hz)
Output Power10 dBm (-1 dB compression)11 dBm (-1 dB compression)
Output Voltage1.7 Vp-p (@ 50 Ω Load)1.7 Vp-p (@ 50 Ω Load)
Input/Output50 Ω, SMA50 Ω, SMA
Power Supply±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 x1
Control Interface3 opto-isolated Digital Inputs, TTL/CMOS compatible
Interface Software OptionLUCI-10 Control Interface Software and Hardware option
Case165 x 105 x 45 mm (L x W x H), Weight 510 g (1.2 lbs)
LED gain setting indication. 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.
Typical Performance Characteristics

FEMTO Product Catalog 

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