SR554 — Transformer preamplifier with differential input Lock-In Preamplifier

PublishTime：2024-10-17

■The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications. It is the ideal preamplifier for low-temperature, synchronous detection applications where isolation between the experimental sample and the lock-in amplifier is critical.
■The SR554 can operate in one of two modes. In the “bypassed” mode, the instrument is simply a passive transformer with a turns ratio of 100, providing an overall voltage gain of 100. In the “non-bypassed” mode, an additional amplifier (gain of 5) is added, increasing the overall gain to 500 and providing a low-impedance (<1 Ω) output. In the bypassed mode, the SR554 requires no external power. When using the output amplifier, ±20 VDC must be supplied. The preamplifier connector on SRS lock-ins can be used to power the SR554.
●Transformer-coupled input
●0.1 nV/√Hz input noise
●0.1 Hz to 40 kHz bandwidth
●Gain of 100 or 500
●Single-ended and differential inputs
●>40 dB isolation from DC to 500 MHz
●Powered by SRS lock-in amplifiers

Brand of Product：	Stanford Research Systems
Part#：	SR554 More Part#
Product Category：	Transformer preamplifier 、 Lock-In Preamplifier 、 low-noise, transformer-coupled preamplifier 、 preamplifier More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2024/1/10
Version Number：
Data Encoding：
Data Size：	605 KB

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