Datasheet

DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Features

Variable gain 30 to 70 dB (approx. x30 to x3000), switchable in 10 dB steps
Bandwidth 1 kHz … 1.1 GHz
Bandwidth, frequency response and pulse response independent of gain setting
Local and remote control
DC monitor output

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
ProgrammableGain Stage

Block Diagram

INPUT20 dB
30 dB

Programmable
Gain Stage

0 dB
10 dB

Monitor Buffer

Programmable
Gain Stage

0 dB
10 dB

Programmable
Gain Stage

0 dB
10 dB

Buffer-Amplifier

10 dB

OUTPUTPOWER
SUPPLYGain Control Unit

IN (±15 V)
ManualSwitch

DC MONITOROUTPUT

Optocoupler
Isolated Unit

DIGITALCONTROL INPUTSOUT (±12 V, +5 V)

SupplyVoltage
Regulator

POWER SUPPLYOUTPUT
BS-DUPVA-1-70_R1

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DE-DUPVA-1-70_R16/MvB,LK,JM/17JAN2017

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Datasheet

DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Specifications

Test conditions

VS = ±15 V, TA = 25 °C, system impedance = 50 Ω

Gain

Gain values
Gain accuracy
Gain flatness

30, 40, 50, 60, 70 dB±0.1 dB(between settings)±1 dB(overall)±0.15 dB

Frequency Response

Lower cut-off frequency
Upper cut-off frequency
Upper cut-off frequency rolloff

1 kHz
1.1 GHz
40 dB/oct.

Time Response

Rise/fall time (10 % - 90 %)Group delay

390 ps2.2 ns

Input50 Ω100 kΩ
1.1 : 1
1.2 : 1
Input VSWR (@ 40 - 70 dB gain) 1.7 : 1
1.7 : 150 Ω noise figure
1.9 dB
2.5 dB
Equivalent input voltage noise
330 pV/√Hz400 pV/√Hz
1/f-noise corner
20 kHzOutputInput impedance AC
Input impedance DC
Input VSWR (@ 30 dB gain)(f < 1 GHz)(f < 2 GHz)(f < 1 GHz)(f < 2 GHz)(@ 70 dB gain)(@ 40 - 60 dB gain)(@ 70 dB gain)(@ 40 - 60 dB gain)

Output impedance

50 Ω

Output power P1dB

12 dBm
11 dBm(@ 100 MHz)(@ 500 MHz)

2V
1.7 V
Output VSWR
1.5 : 1
1.7 : 1
Third order intercept point IP3
20 dBmReverse isolation
80 dB
Dynamic range (without average) 62 dB(@ 100 MHz)(@ 500 MHz)(f < 1 GHz)(f < 2 GHz)

Output peak-to-peak voltage
for linear amplification(P1dB – min. detectable signal)

Monitor Output

Monitor output gain
Monitor output impedance
Monitor output voltage range
Monitor output current
Monitor output bandwidth1(@ ≥100 kΩ load)
50 Ω(designed for ≥100 kΩ load)±10 V±25 mA
DC ... 100 kHz

Digital Control

Control input voltage range

Low: –0.8 ... +0.8 V
High: +1.8 ... +12 V

Power Supply

Supply voltage
Supply current±15 V+250 / –100 mA(without current consumption from Sub-D-connector)±12 V / max. 50 mA, +5 V / max. 50 mA(Auxiliary voltage outputs Pin 1-4 Sub-D-connector)

Stabilized power supply output

Case

WeightMaterial

510 g (1.1 lb)
AlMg4.5Mn, nickel-plated

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DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Specifications (continued)
Temperature Range

Absolute Maximum RatingsConnectors

Storage temperatureOperating temperature–40 ... +100 °C
0 ... +60 °C

Signal input power
Signal input DC voltage
Signal output reverse power
Signal output reverse DC voltage
Control input voltage
Power supply voltage+13 dBm±16 V+13 dBm+16 V / –12 V+16 V / –5 V
±17 V

Input

SMA female

Output

SMA female

Power supply

Lemo series 1S, 3-pin fixed socket(mating plug type: FFA.1S.303.CLAC52)(f > 500 Hz)(slope max. ±1 V/ms)(slope max. ±1 V/ms)®

Pin 1:Pin 2:Pin 3:+15V–15V
GNDPIN 2-Vs

PIN 1+Vs

PIN 3
GND

Remote Control Operation

Control port

Sub-D 25-pin, female, qual. class 2
Pin 1:+12V (stabilized power supply output)
Pin 2:–12V (stabilized power supply output)
Pin 3:
AGND (analog ground)Pin 4:+5V (stabilized power supply output)
Pin 5:
Monitor output
Pin 6 - 8:
NC
Pin 9:
DGND (ground f. digital control pin 10 - 25)
Pin 10 - 13: NC
Pin 14:
Digital control input: gain, LSB
Pin 15:
Digital control input: gain
Pin 16:
Digital control input: gain, MSBPin 17 - 25: NCGeneral

Remote control input bits are opto-isolated and connectedby logical OR to local switch setting. For remote controlof the gain setting, set the local switch to “Ext.” andselect the wanted gain setting via a 3-bit-code at thecorresponding digital inputs:

Gain setting corresponding inputs

Gain
Pin 14
Pin 15
Pin 16

30 dB
Low
Low
Low
40 dB
High
Low
Low
50 dB
Low
HighLow
60 dB
HighHigh
Low
70 dB
Low
Low
High

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Page 3Datasheet

DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Typical Performance
Characteristics

Frequency response (l( l ogarithmic)

Frequency response (l( l inear)

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Datasheet

DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Typical Performance
Characteristics

Input reflection, S11

Input return l oss, S11 (Linear Magnitude)

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Datasheet

DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Typical Performance
Characteristics

Output reflection, S22

Output return ross, S22 (Linear Magnitude)

Group delaySOPHISTICATED TOOLS FOR SIGNAL RECOVERY
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Datasheet

DUPVA-1-70
Variable-Gain
Ultra-Wideband Voltage Amplifier

Dimensions

157 mm
150 mm

15 mm

137 mm

20 mm

79 mm

51 mm

105 mm

OUT
44 mm

IN

POWER

27.3 mm

14.3 mm

42 mm

Ø 3.2 mm

DZ01-0640-14

Accessories

BNC adapter set

Model no.: ADAP-SMA-BNC-1- set of 2 SMA to BNC adapters

FEMTO Messtechnik GmbH
Klosterstr. 64
10179 Berlin · Germany
Phone: +49 30 280 4711-0
Fax: +49 30 280 4711-11
Email: info@femto.de
www.femto.deSpecifications are subject to change without notice. Information provided herein is believed to be accurate andreliable. However, no responsibility is assumed by FEMTO Messtechnik GmbH for its use, nor for any infringementof patents or other rights of third parties which may result from its use. No license is granted by implication orotherwise under any patent or patent rights of FEMTO Messtechnik GmbH. Product names mentioned may also be
trademarks used here for identification purposes only.
© by FEMTO Messtechnik GmbH · Printed in Germany

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