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HLVA-100 LOGARITHMIC WIDEBAND VOLTAGE AMPLIFIER HLVA-100

Updated:2025-03-13

Brand name:FEMTO
Model number: HLVA-100
Description: HLVA-100 logarithmic voltage amplifier, FemTo HLVA-100 voltage amplifier has a wide dynamic range of up to 80 dB. With a DC coupled input and a rise and fall time of only 5 ns, HLVA-100 is well suited
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Product Details

HLVA-100 LOGARITHMIC WIDEBAND VOLTAGE AMPLIFIER HLVA-100

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

GENERAL DESCRIPTION

The FEMTO HLVA-100 offers a wide dynamic range of up to 80 dB. With a DC coupled input and a rise and fall time of just 5 ns the HLVA-100 is the ideal tool for the measurement of fast and high dynamic pulses. The input voltage noise is extremely low with just 2 nV/√Hz. The logarithmic gain curve offers high gain for small input signals and relatively low gain for high input signals. Therefore the HLVA-100 is the ideal amplifier for signals with high dynamic range and applications in which a signal compression is desired.

INPUT OFFSET

The HLVA-100 provides 3 possibilities of an input offset voltage correction (baseline correction). All three methods cancel both temperature drift dependent offset and small source voltage offset:

Manual null adjust by trimpot
Remote null adjust by ±10 V control voltage
Baseline correction loop to perform remote auto-null

APPLICATIONS

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

Model	HLVA-100
Input Voltage Range	from ±20 μV to ±200 mV and from ±200 μV to ±2 V
Dynamic Range	Typ. 60 dB (for accurate amplitude measurement) Max. 80 dB (for signal detection)
Scaling	12.5 mV/dB, 250 mV/decade (@ 50 Ω load)
Linearity	±1 dB (for pulse of min. 20 ns pulse width)
Input Noise Voltage	2 nV/√Hz
Input Voltage Drift	0.6 μV/°C
Input/Output	50 Ω, BNC
Rise/Fall Time	5 ns @ 40 dB step
Output Voltage Range	from +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 Correction	Acquisition time	30 μs (min. sample pulse width)
	Baseline hold droop rate	1 μV/s (typ. @ 25°C)
	Loop cut-off frequency	1.5 kHz
Power supply	±15 V, +100 mA/?150 mA,
Digital Control	TTL, CMOS, opto-isolated
Datasheet	535 kB

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.