Lock-In Amplifiers

Lock-In Amplifiers

Lock-In Amplifiers

Lock-in Amplifiers are the instrument of choice for measuring small AC signals in the presence of noise. Stanford Research Systems (SRS) are pioneers in this field with products that have become the industry standard. We have extensive experience and solutions for all applications.
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  • SRS SR124 Analogue Lock-in Amplifier, 200kHz

    • 0.2 Hz to 200 kHz measurement range
    • Low noise, all analog design
    • No digital interference
    • Low noise current and voltage inputs
    • Harmonic detection (f, 2f, or 3f)
    • Selectable input filtering
  • SRS SR2124 - 200 kHz Analogue/Analog Lock-in Amplifier

    To expand their range SRS is proud to add the SR124 Single-Phase and SR2124 Dual Phase Analogue Lock-In Amplifiers. Inspired by the best of the earlier generation’s lock-ins, but availing itself of today’s low-noise analogue components and design methodologies, the SR124 and SR2124 are the best in low-noise, high performance analogue instrumentation.  

  • SRS SR510 Analogue Lock-in Amplifier, 100kHz

    • 0.5 Hz to 100 kHz frequency range
    • Current and voltage inputs
    • Up to 80 dB dynamic reserve
    • Tracking band-pass and line filters
    • Internal reference oscillator
    • Four ADC inputs, two DAC outputs
    • GPIB and RS-232 interfaces
  • SRS SR530 Analogue Lock-in Amplifier, 100kHz SRS SR530 Analogue Lock-in Amplifier, 100kHz

    SRS SR530 Analogue Lock-in Amplifier, 100kHz

    Special Price £2,763.53 £3,316.24 Regular Price £3,418.80
    • 0.5 Hz to 100 kHz frequency range
    • Current and voltage inputs
    • Up to 80 dB dynamic reserve
    • Tracking band-pass and line filters
    • Internal reference oscillator
    • Four ADC inputs, two DAC outputs
    • GPIB and RS-232 interfaces
  • SRS SR810 DSP Lock-in Amplifier, 102kHz

    • 1 mHz to 102 kHz frequency range
    • Magnitude display only
    • 100 dB dynamic reserve without pre-filtering
    • Auto-gain, phase and reserve
    • Time constants from 10 µs to 30 ks
    • 6, 12, 18, 24 dB/oct rolloff
    • Harmonic detection (2F, 3F, ..., nF)
    • Standard GPIB and RS-232 interfaces
  • SRS SR830 DSP Lock-in Amplifier, 102kHz SRS SR830 DSP Lock-in Amplifier, 102kHz

    SRS SR830 DSP Lock-in Amplifier, 102kHz

    Special Price £4,844.18 £5,813.02 Regular Price £5,992.80
    • 1 mHz to 102 kHz frequency range 
    • Magnitude & phase display
    • 100 dB dynamic reserve without pre-filtering 
    • Auto-gain, phase and reserve 
    • Time constants from 10 µs to 30 ks 
    • 6, 12, 18, 24 dB/oct rolloff 
    • Harmonic detection (2F, 3F, ..., nF) 
    • Standard GPIB and RS-232 interfaces
  • SRS SR844 DSP RF Lock-in Amplifier, 200MHz

    • 25 kHz to 200 MHz frequency range
    • >80 dB dynamic reserve
    • Time constants from 100 µs to 30 ks (6, 12, 18 or 24 dB/oct rolloff)
    • "No Time Constant" mode (10 to 20 µs update rate)
    • Auto-gain, -phase, -reserve and -offset
    • Internal or external reference
    • Two 16-bit DACs and ADCs
    • GPIB and RS-232 interfaces
  • SRS SR850 DSP Lock-in Amplifier, 102kHz

    • 1 mHz to 102.4 kHz frequency range
    • >100 dB dynamic reserve
    • 0.001 degree phase resolution
    • Time constants from 10 µs to 30 ks (up to 24 dB/oct rolloff)
    • Auto-gain, -phase, -reserve and -offsets
    • Data logging (up to 65k samples)
    • Smoothing, curve fitting & statistic
    • GPIB, RS-232 and USB storage
  • SRS SR860 DSP Lock-in Amplifier, 500 kHz SRS SR860 DSP Lock-in Amplifier, 500 kHz

    SRS SR860 DSP Lock-in Amplifier, 500 kHz

    Special Price £5,993.63 £7,192.36 Regular Price £7,414.80
    • 1 mHz to 500 kHz
    • Low noise voltage and current inputs
    • 1 µs to 30 ks time constants
    • High bandwidth outputs
    • Touchscreen data display - large numeric results, chart recordings & FFT displays
    • 10 MHz timebase input and output
    • GPIB, RS-232, Ethernet and USB
    • HDMI video output
  • SRS SR865A DSP Lock-in Amplifier SRS SR865A DSP Lock-in Amplifier

    SRS SR865A DSP Lock-In Amplifier, 4MHz

    Special Price £7,336.11 £8,803.33 Regular Price £9,075.60
    • 1 mHz to 4 MHz
    • Low noise voltage and current inputs
    • 1 µs to 30 ks time constants
    • High bandwidth outputs
    • Touchscreen data display - large numeric results, chart recordings, & FFT displays
    • 10 MHz timebase input and output
    • GPIB, RS-232, Ethernet and USB
    • HDMI video output
  • SRS SX199 Optical Interface Controller

    For remote interfacing with complete electrical isolation, the SRS CS580 also has a rear-panel fiber optic interface. When connected to the SX199 Remote Computer Interface Unit, a path for controlling the CS580 via GPIB, Ethernet, and RS-232 is provided.

    • Four serial optical ports
    • GPIB, RS-232 and Ethernet
    • Remote interface monitoring
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