Bandwidth

To achieve signal-to-noise ratio performance, select an amplifier with sufficient bandwidth corresponding to the required signal bandwidth. However, note that unnecessarily high bandwidth introduces more broadband noise. Therefore, FEMTO offers three HVA voltage amplifiers with different upper cutoff frequencies to meet various measurement needs. Like all FEMTO variable-gain amplifiers, the bandwidth remains constant when switching between different gain settings, which is crucial for measuring fast signals and pulses.

True DC Coupling with Zero Output Offset

True DC coupling is essential for precise pulse amplification and analysis, especially when dealing with varying pulse lengths (e.g., digital codes or transients lasting from microseconds to milliseconds). If the amplifier uses AC coupling or has a significant output offset that requires decoupling via an oscilloscope's AC setting, the measurement results will exhibit noticeable undershoot and baseline drift. Therefore, all HVA amplifiers provide true DC coupling and adjustable output offset control, even the 500 MHz models.

Extremely Low Input Noise

Low input noise is critical for achieving a good signal-to-noise ratio, particularly when amplifying small signals. All HVA amplifiers are optimized for the lowest input noise, achieving excellent values as low as 0.9 nV/√Hz.

Output impedance 50 Ω. Offset can be adjusted via a trim potentiometer. Output is short-circuit protected. Power is supplied through a 3-pin Lemo? socket. The device comes with a matching connector. Optional PS-15 power supply available.

Plugs and Sockets

FEMTO amplifiers and optical receivers come standard with BNC or SMA interfaces, depending on the model. We are happy to provide other plugs and interfaces based on your needs. In addition to BNC, SMA, and N-type interfaces, we can offer other interface types upon request. Simply add your requirements to the quotation or contact our support team.

Custom Products

None of the above products meet your requirements? We are pleased to offer products customized to your application needs, including OEM versions. Our technical support team looks forward to your inquiry. You can also find suitable products in the relevant product categories.

About Us

Shenzhen Bonade Precision Instrument Co., Ltd. is an importer and distributor of instruments, representing products such as: Femto amplifiers, laser power meters, beam analyzers, beam collectors, spot analyzers, high-power continuous zoom fiber laser collimator heads (FAC), German GTE, German hhb Electronic, Pacific Lasertec helium-neon lasers, SRS Stanford amplifiers, Scitec optical choppers, AA Lab Systems equipment, DL Instruments amplifiers, friction coefficient testers, IP1x-6x dust test probes, IPX1-X8 waterproof test equipment, and other professional devices. If you have any needs, feel free to contact us for consultation.