The Femto 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.

FEATURES

  • 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

VARIABLE GAIN FROM 1 KHZ TO 1 GHZ

APPLICATIONS

  • 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

Model

DUPVA-1-60

DUPVA-1-70

Lower Cut-Off-Frequency

1 kHz

1 kHz

Upper Cut-Off-Frequency

1.2 GHz

1.1 GHz

Rise/Fall Time

380 ps

390 ps

Gain

20/30/40/50/60 dB

30/40/50/60/70 dB

Gain Flatness

0.15 dB

0.15 dB

Input Noise

NF 3.0 dB (450 pV/√Hz)

NF 1.9 dB (330 pV/√Hz)

Output Power

13 dBm (−1 dB compression @ 100 MHz)

12 dBm (−1 dB compression @ 100 MHz)

Input/Output

50 Ω, SMA connector

50 Ω, SMA connector

Power Requirements

±15 V, +350 mA / −100 mA, typ.

±15 V, +250 mA / −100 mA, typ.

Monitor Output

DC - 100 kHz monitor output at D-Sub connector, gain of 1

Control Interface

3 opto-isolated digital inputs, TTL/CMOS compatible

Dimensions

165 x 105 x 45 mm (L x W x H), weight 510 g (1.1 lbs)

Datasheet

264 kB

279 kB

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.