The PRE is a highly sensitive voltage preamplifier at room temperature, which is intended for low-noise and high-impedance applications like FT-ICR cells, Schottky pickups or charge detectors. It features a design which can be used in dual-channel or single-channel configuration, exhibiting both low voltage and low current noise figures at small input capacitances.
The frequency range comprises 0.5 kHz to 4 MHz (or 40 MHz) at a nominal voltage amplification factor of 250 V/V, or 125 V/V at 50 Ohm load respectively. The small size makes upgrade of existing systems easy, improving sensitivity and delivering a better signal-to-noise ratio.
The PRE is implemented as solid box of an Aluminium alloy with gold plated input/output SMA terminals, offering very high immunity to external noise interference.
- two versions: 4 MHz and 40 MHz (max.)
- excellent voltage noise: 0.6 nV/√Hz at 1 MHz single channel mode
- very low current noise: 12 fA/√Hz at 10 kHz dual channel mode
- small size
- dual channel device with SMA terminals