Features
- 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
- Risk/fall time 5 ns
- Input noise 2 nV/√Hz
- Local and remote control
- Integrated sample and hold baseline correction
| 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 | |
| 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 Requirements | ±15 V, +100 mA/−150 mA | |
| Control Interface | 3 opto-isolated digital inputs, TTL/CMOS compatible | |
| Datasheet |  |
|
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.
Customised products
Do none of the products meet your requirements? We would be happy to offer you a custom-made product designed for your application, which can also be supplied as an OEM version. Our technical support team looks forward to hearing from you. You may also find something suitable among the related products.
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
Typical performance characteristics
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