VOLTAGE AMPLIFIERS





  • »100/200 MHz Wideband Voltage Amplifiers

    • Bandwidth DC to 100 or 200 MHz independent of chosen gain setting
    • Variable gain from 10 to 60 dB (× 3 to × 1,000)
    • Input noise 2.3 nV/√H
    • DC drift only 0.3 μV/°CDC drift only 0.3 μV/°C
    • True DC coupling, switchable to AC
    • Switchable 10 or 20 MHz low pass filter for minimizing wide band noise
    • Local and remote control

    APPLICATIONS

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




  • »Wideband Voltage Amplifiers

    • Bandwidth DC to 10, 200 or 500 MHz
    • Fixed or variable gain up to 60 dB (× 1,000)
    • Noise down to 0.9 nV/√Hz
    • True DC coupling, switchable to AC
    • 50 Ω bipolar or 1 MΩ FET input stage

    APPLICATIONS

    • Oscilloscope and transient recorder preamplifier
    • Photomultiplier and microchannel plate amplifier
    • Time-resolved pulse and transient measurements
    • Amplification of digital signals (no baseline shift at any digital code)





  • »Low-Frequency Voltage Amplifiers

    • Bandwidth DC to 100 kHz
    • Variable gain up to 100 dB (× 100,000)
    • Input noise down to 0.4 nV/√Hz
    • DC-drift down to 0.5 μV/°C
    • True DC coupling, switchable to AC
    • Input impedance up to 1 TΩ
    • Local and remote control

    APPLICATIONS

    • Universal low-frequency amplifier
    • Automated measurements
    • Industrial sensors
    • Detector preamplifier
    • Integrated measurement systems For detailed information about DHPVA-, HVA-, and DLPVA-series see next page!




  • »Reference Class from DC to 200 MHz

    Offset adjustable by trimpot or external control voltage. Indication of selected gain setting by LEDs. Output short-circuit protected. Power supply via 3-pin Lemo® socket. A mating connector is provided with the device. Optional power supply series PS-15 available. For further information please see the datasheet.

    The new improved models DHPVA-101 and DHPVA-201 replace the previous models DHPVA-100 and DHPVA-200. They are fully compatible delivering at least the same or better electrical performance. The heatsinks may be removed if adequate alternative cooling is provided like mounting the amplifier to a sufficiently large case/rack system.


    ModelDHPVA-101DHPVA-201
    Lower Cut-Off Frequency DC/10 Hz, switchableDC/10 Hz, switchable
    Upper Cut-Off Frequency10/100 MHz, switchable 20/200 MHz, switchable
    Gain [dB] 10/20/30/40/50/60, switchable 10/20/30/40/50/60, switchable
    Input Voltage Noise 2.3 nV/√Hz 2.3 nV/√Hz
    Input Voltage Drift0.3 μV/°C0.3 μV/°C
    Input/Output50 Ω, BNC 50 Ω, BNC
    Input Return Loss S11−31 dB @ 100 MHz−22 dB @ 200 MHz
    Output Return Loss S22−35 dB @ 100 MHz−30 dB @ 200 MHz
    Output Voltage±1 V @ 50 Ω
    Monitor Output DC - 100 kHz monitor output at D-Sub connector, gain of 1
    Digital Control 5 opto-isolated digital inputs, TTL/CMOS compatible
    Power Requirements±15 V, ±120 mA typ.
    Dimensions 175 x 105 x 45 mm (L x W x H), weight 560 g (1.24 lbs)



  • »True DC-Coupling with Zero Output Offset

    Offset adjustable by trimpot. 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


    Model HVA-10M-60-B HVA-10M-60-F HVA-200M-40-BHVA-200M-40-F HVA-500M-20-B
    Lower Cut-Off Frequency DC/1 kHz DC/1 HzDC/1 kHzDC/1 Hz DC
    Upper Cut-Off Frequency10 MHz10 MHz 200 MHz 200 MHz 500 MHz
    Gain [dB] 40/60 40/60 20/4020/4020
    Input Voltage Noise0.9 nV/√Hz 4.7 nV/√Hz1.2 nV/√Hz 4.5 nV/√Hz3.0 nV/√Hz
    Input Voltage Drift1 μV/°C2 μV/°C 1 μV/°C5 μV/°C 10 μV/°C
    Input 50 Ω, BNC 1 MΩ, BNC50 Ω, BNC 1 MΩ, BNC 50 Ω, BNC
    Output50 Ω, BNC 50 Ω, BNC50 Ω, BNC 50 Ω, BNC 50 Ω, BNC
    Output Voltage±3.5 V @ 50 Ω±3.5 V @ 50 Ω ±1 V @ 50 Ω±1 V @ 50 Ω±1 V @ 50 Ω
    Power Requirements±15 V, ±70 mA typ.
    Dimensions112 x 51 x 33 mm (L x W x H), weight 200 g (0.5 lbs)



  • »High Gain up to 100 dB

    Offset adjustable by trimpot or external control voltage. 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.


    Model DLPVA-100-BUN-SDLPVA-100-BLN-S DLPVA-100-B-S DLPVA-100-B-DDLPVA-100-F-SDLPVA-100-F-D
    Input stageSingle ended, bipolar Single ended, bipolarSingle ended, bipolar True diff., bipolarSingle ended, FET True diff., FET
    Input1 kΩ, BNC1 MΩ, BNC 1 MΩ, BNC 1 MΩ, Lemo®1 TΩ, BNC 1 MΩ, Lemo®
    Typical Source Impedance<50 Ω <100 Ω <1 kΩ<1 kΩ <1 GΩ<1 GΩ
    Lower Cut-Off Frequency1.5 Hz (AC onlyDC/1.5 HzDC/1.5 Hz DC/1.5 Hz DC/1.5 Hz DC/1.5 Hz
    Upper Cut-Off Frequency 1/100 kHz1/100 kHz 1/100 kHz 1/100 kHz 1/100 kHz1/100 kHz
    Gain [dB]40/60/80/10040/60/80/100 20/40/60/80 20/40/60/8020/40/60/8020/40/60/80
    Input Voltage Noise 0.4 nV/√Hz 0.7 nV/√Hz2.4 nV/√Hz 3.6 nV/√Hz 5.5 nV/√Hz 6.9 nV/√Hz
    Input Voltage Drift--0.5 μV/°C 0.7 μV/°C 0.7 μV/°C 1.3 μV/°C1.3 μV/°C
    CMRR ------120 dB max.--120 dB max.
    Output <100 Ω, BNC (terminate with > 10 kΩ load for best performance)
    Output Voltage±10 V (@ > 10 kΩ load)
    Digital Control 3 or 4 digital inputs and 1 digital output, opto-isolated, TTL/CMOS compatible
    Power Requirements±15 V, ±75 mA typ.
    Dimensions 175 x 51 x 34 mm (L x W x H), weight 320 g (0.7 lbs)



  • »Logarithmic Wideband Voltage Amplifier

    • Wide dynamic range up to 80 dB
    • DC coupled, rectifying* inpu
    • Switchable input range from ±20 μV to ±200 mV and from ±200 μV to ±2 V
    • Rise/fall time 5 ns
    • Input noise 2 nV/√Hz
    • Local and remote control
    • Integrated sample and hold baseline correction

    APPLICATIONS

    • LIDAR systems
    • Signal compression
    • Time-resolved pulse and transient measurements
    • Mass spectroscopy
    • Particle detection

    Offset adjustable by trimpot or external control voltage. 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.

    The logarithm of a negative number is not defined as real number. Therefore the negative part of an input signal is rectifyed prior to applying the logarithmic amplification.


    ModelHLVA-100 
    Input Voltage Rangefrom ±20 μV to ±200 mV and from ±200 μV to ±2 V, switchable
    Dynamic RangeTyp. 60 dB (for accurate amplitude measurement)
    Max. 80 dB (for signal detection)
    Linearity 12.5 mV/dB, 250 mV/decade (@ 50 Ω load)
    ±1 dB (for pulse of min. 20 ns pulse width)
    Input Voltage Noise 2 nV/√Hz
    Input Voltage Drift0.6 μV/°C
    Input/Output50 Ω, BNC
    Rise/Fall Time 5 ns @ 40 dB step
    Output Voltage Range +50 to +1075 mV typ. @ 50 Ω load (if output is adjusted to 1 V at 100 mV input)
    Output Offset Voltage Range ±500 mV, adjustable by offset-trimpot
    Baseline CorrectionAcquisition time30 μs (min. sample pulse width
    Baseline hold droop rate 1 μV/s (typ. @ 25°C)
    Loop cut-off frequency1.5 kHz
    Digital Control 2 opto-isolated digital inputs, TTL/CMOS compatible
    Power Requirements ±15 V, +90 mA/−120 mA typ.
    Dimensions171 x 57 x 34 mm (L x W x H), weight 320 g (0.7 lbs)