Stanford Research Systems

Optical chopper 0.4 Hz–20 kHz with low phase jitter, 0.01° phase resolution, 20 ppm frequency accuracy, flexible synchronisation and USB interface.

Interface controller with four serial optical ports for connecting the SR124 or CS580 to GPIB, RS-232 or Ethernet for remote control.

Output voltage up to ±100 V with 1 mV resolution, low noise, 16-bit resolution, isolated output, USB/RS-232 interface and optional battery operation.

GPS/GNSS-disciplined 10 MHz reference with dual-junction OCXO, low phase noise, five 10 MHz outputs, two 1 pps outputs and the option for extended frequency distribution.

GPS-disciplined 10 MHz reference with long-term stability better than 1×10⁻¹³, time tagging against UTC/GPS, multiple waveform outputs and network control.

0.2 Hz–200 kHz range, analogue low-noise design with dual-phase detection, voltage and current inputs, harmonic detection and selectable filtering.

1 mHz–500 kHz measurement range with low-noise voltage and current inputs, time constants 1 µs–30 ks, FFT display, and USB, LAN, GPIB and HDMI outputs.

Binary gas analyzer for non-invasive measurement of gas ratios or gas purity with

Current source/sink 100 fA–100 mA with ±50 V compliance voltage, gain 1 nA/V–50 mA/V, bandwidth up to 200 kHz, low thermal drift, RS-232 and optical fibre.

Isolated amplifier with up to 1 MHz bandwidth, selectable gain x1/x10/x100, ±1000 V isolation voltage, low-noise design and 1 MΩ input impedance.

Lock-in amplifier with a frequency range of 1 mHz – 4 MHz, low noise level, time constants of 1 µs – 30 ks, colour LCD screen and GPIB/USB/LAN interfaces.

2-channel 8-pole elliptical filters with 115 dB/octave roll-off, 1 Hz–100 kHz frequency range, 0.1 dB ripple and up to 80 dB gain.

Research-grade potentiostat/galvanostat with ±30 V compliance, ±1 A maximum current, 1 MHz EIS bandwidth, front-panel control, GPIB/Ethernet and free software.

SRS Extended warranty (2 extra years) for SG396

SRS Extended warranty (2 extra years) for SG394

Signal generator from DC to 6.075 GHz with RAFS synthesis, 125 MS/s baseband, 256-QAM and 8VSB support, low phase noise and optional rubidium time base.

Signal generator from DC to 4.050 GHz with RAFS synthesis, internal I/Q generator, support for ASK/QAM/FSK and OCXO time base with low phase noise.

SRS Extended warranty (2 extra years) for SG392

Rubidium-based timebase with oven-controlled SC-cut crystal oscillator, stability

Signal generator from DC to 2.025 GHz with RAFS synthesis, 14-bit I/Q modulation (125 MS/s), AM/FM/PM support and OCXO time base.

RF signal from DC to 6.075 GHz with 1 µHz resolution, low phase noise, AM/FM/PM/ØM and sweep, OCXO time base, plus Ethernet, GPIB and RS-232.

RF signal from DC to 4.05 GHz with 1 µHz resolution, low phase noise, AM/FM/PM/ØM and sweep, OCXO time base, and Ethernet, GPIB and RS-232.

10 MHz oven-stabilised quartz oscillator with SC-cut crystal, very low phase noise, high short-term stability and low ageing for precision references.

All instrument functions can be controlled via the interfaces.

High-speed pulse generator for time-domain measurements, 100 ps rise time (20–80%), 0.5–2.0 V output and controlled pulse distortion for bandwidth testing.

5–10 ms time bins, up to 100 MHz counting, 1k–32k bins, built-in discriminator, no inter-channel dead time, screen analysis, and GPIB/RS-232 and 3.5" storage.

2-channel photon counter with up to 200 MHz, 5 ns gate resolution, discriminators, gated/continuous modes, gate sweep for time resolution and GPIB/RS-232.

Analogue scaling amplifier with adjustable gain and offset (3½-digit resolution), 1 MHz bandwidth, low-noise input and ±10 V operating range.

4-channel analogue summing amplifier with ±10 V operating range, 1 MHz bandwidth, low crosstalk (-80 dB), low offset (

4-channel 5½-digit DC voltmeter with isolated inputs, ±19.9999 V auto-ranging, continuous auto-calibration, external trigger and high noise immunity.

Adjustable analogue high- or low-pass filter 1 Hz–500 kHz with Bessel or Butterworth characteristics, selectable roll-off 12–48 dB/octave and 3-digit cut-off frequency resolution.

1 MHz bandwidth with adjustable upper and lower voltage limits of ±10 V in 10 mV steps, TTL outputs for limit detection and low-noise analogue signal path.

100 kHz bandwidth, analogue signal path with digital parameter control, low-noise front end, adjustable P/I/D/offset, anti-windup, ramped setpoint control and ±10 V output.

Empty single- and double-width modules for SIM900 with fixed mounting points, DB-15 interface and support for integration of custom circuit boards.

Compact laser shutter with 3 mm aperture,

4-channel laser driver for up to four shutter heads with TTL inputs, manual or external control, and GPIB, RS-232 and Ethernet.

Shutter controller with 4 ms–10,000 s exposure time, 100 µs resolution, internal or external triggering, and GPIB, RS-232 and Ethernet.

0.2 Hz–200 kHz measurement range, low-noise voltage and current inputs, harmonic detection (1st/2nd/3rd) and selectable filtering.

Cryogenic temperature controller with 4 sensor inputs, 2 power outputs up to 100 W, 4 analogue outputs and up to 6 PID loops, as well as USB/Ethernet/RS232.

16-channel monitor for type B, E, J, K, R, S and T thermocouples with 0.1 °C resolution, 2000-point memory and GPIB/RS-232 interfaces.

Modular temperature controller with up to 16 input channels, 6 PID loops, 1 mK resolution, 50 Hz sampling and USB/Ethernet/RS232 interfaces.

10 MHz rubidium frequency standard with eight 75 Ω outputs, low phase noise, high stability and option for external reference and redundant power.

337 nm nitrogen laser with 170 µJ pulse energy, 3.5 ns pulse width, up to 20 Hz repetition rate, internal or external triggering, and replaceable laser cartridge.

Up to 500 mA output current,

Up to 100 mA output current,

Optical chopper 4 Hz–3.7 kHz with analogue frequency control, two reference outputs and support for single- and double-beam experiments.

10 mHz–200 kHz frequency range,

1-channel generator with a frequency range of 1 µHz–30 MHz, 1 µHz resolution, 12-bit resolution and support for AM/FM/PM/FSK modulation.

Function generator for laboratory and ATE use with 1 µHz–3.1 MHz frequency range, DDS architecture, multiple waveforms, phase-continuous sweeps and FSK modulation.

DC–102.4 kHz dual-channel analysis, 90 dB dynamic range, 145 dB in sweep mode, real-time octave and order tracking, 32 MB memory and GPIB/RS-232.

DC–102.4 kHz dual-channel FFT, 90 dB dynamic range, 145 dB in sweep mode, real-time octave analysis, low-distortion source, 32 MB memory and GPIB/RS-232.

DC–100 kHz bandwidth, 90 dB dynamic range, real-time up to 100 kHz, plus harmonic, band and sideband analysis, with low-distortion source in the SR770 and GPIB/RS-232.

≤–112 dB THD+N, 200 kHz generation and measurement, ≤–118 dBu noise, ±0.008 dB flatness, low crosstalk, ≤600 ps jitter and 2-channel FFT for advanced audio analysis.

2-channel amplifier with DC–300 MHz bandwidth, ±10 V output voltage, up to 1 A output current,

10 MHz reference with three outputs, ultra-low phase noise < –130 dBc/Hz at 10 Hz, 1 pps in/out for GPS synchronisation and very long-term frequency stability.

Isolated ±20 V DC source with ultra-low noise, millivolt resolution and battery operation for continuous, ground-independent voltage supply.

8-channel 4-pole relay multiplexer for low-level signals, with support for Kelvin measurement, selectable buffering of sense lines and cascade connection.

1-channel temperature measurement 1.4–873 K with Pt-RTD, selectable 10 µA/1 mA excitation, four-wire measurement and digital and analogue output.

1-channel temperature measurement 1.4–475 K with diodes or up to 873 K with RTD, 10 µA excitation, four-wire measurement and digital and analogue output.

Four independent channels for platinum RTD measurement 20–873 K with 1 mA excitation, four-wire measurement, individual calibration and display in K or Ω.