The Stanford Research SR445A 350 MHz Preamplifier contains four wide-bandwidth, DC-coupled amplifiers, each with a gain of 5.
The four channels may be used independently, or cascaded to provide a total gain of up to 625. The fast rise time, low noise, and excellent DC accuracy of the SR445A make it an ideal instrument for amplifying the outputs of fast photomultiplier tubes and photodiodes.
The SR445A can be used to improve the sensitivity of oscilloscopes, photon counters, boxcar averagers, spectrum analyzers, and other high-frequency test equipment.
The input impedance of channel 1 can be increased to approximately 500 by a front-panel switch. This can improve the sensitivity of signals from current and charge output devices, such as photomultiplier tubes. Each channel has a separate offset adjustment allowing you to quickly null DC errors.
Stanford Research SR445A 350 MHz Preamplifier 4 Channel and other Preamplifiers for sale at Test Equipment Center.
Stanford Research SR445A products for sale at Test Equipment Center are thoroughly tested, and receive electrical and cosmetic reconditioning as needed prior to sale. All products include a 90 day warranty from Test Equipment Center to ensure your complete satisfaction.
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