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Preamplifier SR555 ... from $1095
SR555 Current preamplifier
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SR555 Current Preamplifier
  • 10 V/A fixed gain
  • 120 kHz bandwidth
  • Bias voltage input
  • Powered by SRS lock-in amplifiers
The SR555 is a low-noise, high-bandwidth, fixed-gain current (trans-impedance) amplifier designed to work with SRS lockin amplifiers. Current amplifiers provide gain close to the experimental detector, allowing the user to minimize input cable length and its corresponding input capacitance. The SR555 minimizes noise and pickup before they permanently degrade the signal-to-noise ratio, reducing measurement time in noise-limited experiments.
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> SR556 Current Preamplifier
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SR555 Current Preamplifier

The SR555 is a low-noise, high-bandwidth, fixed-gain current (trans-impedance) amplifier designed to work with SRS lockin amplifiers. Current amplifiers provide gain close to the experimental detector, allowing the user to minimize input cable length and its corresponding input capacitance. The SR555 minimizes noise and pickup before they permanently degrade the signal-to-noise ratio, reducing measurement time in noise-limited experiments. Power is brought from the lock-in by a 9-pin cable. The SR555 can also be operated independently by applying the appropriate DC power.

 

 

Phone: (408)744-9040 • Fax: (408)744-9049 • email: info@thinkSRS.comwww.thinkSRS.com

SR555 FET Preamplifier
General
Gain 107 V/A
Bandwidth 120 kHz (-3 dB)
Input noise (typ.) 42 fA/√Hz at 1 kHz
Current input
     Impedance 50 Ω
     Bias current <3 pA
DC bias input
     Range 5 VDC
     Settling time <150 ms
     Impedance 1 MΩ
Gain accuracy 1 %
Gain stability 50 ppm/C
Output 20 Vpp max. balanced differential
10 mA max., 50 Ω
Power Supplied by SR510, SR530, SR810, SR830 or SR850 or SR124 via connector cable
Dimensions 3.0" × 1.3" × 5.1" (WHL)
Weight 10 oz.
Warranty One year parts and labor on defects in materials and workmanship
 
 
 
Phone: (408)744-9040 • Fax: (408)744-9049 • email: info@thinkSRS.comwww.thinkSRS.com