Microsoft Word - SR555-556 User Manual V1p2.docx

sr555The SR555 is a low-noise, hh-bandwidth, fixed-gain current (trans-impedance) amplifier desned to work with SRS lock-in amplifiers. Current amplifiers provide gain closePreamplifier SR555 — Current preamplifier The SR555 is a low-noise, hh-bandwidth, fixed-gain current (trans-impedance) amplifier desned to work with SRS lockin amplifiers. Current