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.
|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)||12 dBm (−1 dB compression)|
|Input/Output||50 Ω, SMA connector||50 Ω, SMA connector|
|Power Supply||±15 V,
+350 mA / −100 mA
+250 mA / −100 mA
|Monitor Output||DC ... 100 kHz monitor output at D-Sub connector, gain of 1|
|Control Interface||3 opto-isolated digital inputs, TTL/CMOS compatible|
|Case||170 x 105 x 45 mm (L x W x H), Weight 510 g (1.2 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.
Typical Performance Characteristics
The DHPVA voltage amplifier series has been revised, resulting in the new models DHPVA-101 (DC - 100 MHz) and DHPVA-201 (DC - 200 MHz). Input voltage drift and noise are improved to an extraordinary low level while still convincing with a constant bandwidth at any gain setting.
The photoreceiver series HSA-X-S was broadened by two models featuring an improvement in noise performance of up to 40%. The output reflection coefficient was reduced by 8 dB at the same time.
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