SRS/Stanford Research Systems
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| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | CG635 |
| Frequency Range | 1 µHz to 2.05 GHz |
| Random Jitter | < 1 ps RMS |
| Frequency Resolution | 16-bit |
| Rise/Fall Time | 80 ps |
| Output Logic Families | CMOS, PECL, ECL, LVDS, RS-485 |
| Phase Control & Time Modulation | Yes |
| Optional Timebases | OCXO or Rubidium Standard |
| Brand | SRS (Stanford Research Systems) |
|---|---|
| Origin | USA |
| Model | DG535 |
| Delay Channels | 4 independent |
| Pulse Outputs | 2 fully programmable |
| Delay Resolution | 5 ps |
| RMS Jitter | 50 ps |
| Max Delay Range | 1000 s |
| Output Voltage Range | Adjustable amplitude and offset, up to ±35 V (with optional high-voltage module) |
| Rise/Fall Time | <100 ps (with optional module) |
| Standard Interface | GPIB (IEEE-488.2), RS-232 available via adapter |
| Compliance | CE, RoHS |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | FS725 |
| Output Frequencies | 10 MHz, 5 MHz |
| Aging Rate (20-year) | < 0.005 ppm |
| Phase Noise | Ultra-low (typ. –130 dBc/Hz at 1 Hz offset) |
| Distribution Amplifier | Integrated, 22 buffered outputs |
| GPS Sync | 1 PPS input and output |
| Interface | RS-232 serial |
| Brand | SRS (Stanford Research Systems) |
|---|---|
| Origin | USA |
| Model | BGA244 |
| Principle | Non-dispersive Infrared (NDIR) Absorption |
| Form Factor | Portable |
| Response Time | <5 s |
| Repeatability | ±0.1% of full scale |
| Measurement Frequency | 4 Hz |
| Interface Options | USB, RS-232, RS-422 |
| Display | Capacitive Touchscreen |
| Software | BGAMon Data Acquisition & Control Suite |
| Compliance | CE, RoHS, NIST-traceable calibration support |
| Brand | SRS (Stanford Research Systems) |
|---|---|
| Origin | USA |
| Model | CS580 |
| Compliance | Imported Instrument |
| Output Compliance Voltage | ±50 V |
| Current Range | 100 fA to 100 mA (source/sink) |
| Transconductance Gain | 1 nA/V to 50 mA/V (selectable ranges) |
| AC Bandwidth | Up to 150 kHz |
| DC Bias Superposition | Yes |
| Noise Floor | Ultra-low (sub-pA/√Hz typical) |
| Leakage Current | <10 fA |
| Thermal Drift | <10 pA/°C |
| Interfaces | RS-232, Optical Fiber (isolated remote control) |
| Application Context | X-ray instrumentation, cryogenic transport measurements, quantum device characterization |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | DG645 |
| Output Channels | 4 TTL pulse outputs with up to 8 independently programmable delay transitions |
| Timing Jitter | <25 ps RMS |
| Maximum Trigger Rate | 10 MHz |
| Laser Synchronization | Yes, lockable to 80 MHz external reference |
| Time Resolution | 5 ps per channel |
| Clock Source | Oven-controlled rubidium oscillator |
| Interfaces | Ethernet, GPIB (IEEE-488), RS-232 |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | PRS10 |
| Output Frequency | 10 MHz sine wave |
| Output Amplitude | 0.5 Vrms ±1% |
| Long-term Aging (Monthly) | <5×10⁻¹¹ |
| Long-term Aging (Annual) | <5×10⁻¹⁰ |
| Short-term Stability (Allan Deviation) | <2×10⁻¹¹ @ 1 s |
| Harmonic Distortion | <-25 dBc |
| Warm-up & Lock Time | 6 min to lock, frequency deviation <1×10⁻⁹ within 7 min |
| Power Supply | +24 VDC |
| Dimensions | 76 × 101 × 51 mm (3″ × 4″ × 2″) |
| Phase Noise | <-130 dBc/Hz @ 10 Hz offset |
| 1 PPS Input | Yes, for external reference disciplining (e.g., GPS) |
| Holdover Performance | Stratum 1 compliant for ≥72 hours |
| Interface | RS-232 serial port |
| Expected Lifetime | ≥20 years |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | SG384 |
| Frequency Range | DC to 4.05 GHz (up to 8.1 GHz with Opt. 02 doubler) |
| Frequency Resolution | 1 µHz |
| Phase Noise | −116 dBc/Hz (SSB, 20 kHz offset at 1 GHz) |
| Standard Reference | OCXO |
| Optional Reference | Rubidium Clock |
| Modulation Types | AM, FM, ΦM (phase modulation), PM (pulse modulation), frequency sweep |
| Output Options | Differential low-noise clock output (Opt. 01), analog I/Q input (Opt. 03) |
| Interfaces | Ethernet, GPIB, RS-232 |
| Brand | SRS (Stanford Research Systems) |
|---|---|
| Origin | USA |
| Model | SR250 |
| Sampling Gate Width | 2 ns |
| Maximum Trigger Frequency | 50 kHz |
| Averaging Rate | Up to 10,000 sweeps/sec |
| Output Types | Analog and Digital |
| Modular Chassis Compatibility | SR280 Mainframe |
| Interface | SR245 Computer Interface |
| Software | SR272 Control Software |
| Optional Modules | SR240 (4-Channel 300 MHz Preamplifier), SR200 (Gate Scanner), SR235 (Analog Processor with Background Subtraction, Variable Filtering & Gain) |
| Brand | SRS (Stanford Research Systems) |
|---|---|
| Origin | USA |
| Model(s) | SR280, SR250, SR255, SR240A, SR245, SR270, SR200, SR235 |
| Key Specifications | Gate Width Range: 2 ns – 150 µs (SR250), down to 100 ps (SR255) |
| Sampling Averages | 1–10,000 cycles |
| RMS Jitter | <2 ps (SR255) |
| Bandwidth | 350 MHz (SR240A) |
| Rise/Fall Time | 1.2 ns (SR240A) |
| Interface | GPIB, RS-232, TTL I/O, 8-bit DIO, 8-channel analog I/O |
| Brand | SRS (Stanford Research Systems) |
|---|---|
| Origin | USA |
| Model | UGA Series |
| Type | Portable Residual Gas Analyzer |
| Mass Range Options | 100 amu / 200 amu / 300 amu |
| Resolution | Better than 0.5 amu (at 10% peak height) |
| Detection Limit | <1 ppm |
| Operating Pressure Range | 1×10⁻⁶ Torr to 760 Torr (via configurable inlet) |
| Inlet Configurations | Stainless-steel capillary (1–760 Torr), tubular channel (10⁻¹–10⁻⁴ Torr), 2.75" CF flange (<10⁻⁴ Torr) |
| Flow Rate | 1–10 sccm (at STP) |
| Detector | Faraday Cup & Electron Multiplier |
| Vacuum Pumping System | Integrated Turbo-Molecular Pump + Low-Pressure Diaphragm Pump |
| Interface | GPIB, RS-232 |
| Software | Windows-based RGA Control Suite with Real-Time Spectral Acquisition, Leak Detection Mode, Time-Pressure Plotting, and Multicomponent Quantitative Analysis |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Product Type | Scientific CCD Imaging Camera |
| Models | 8K-7U-32, CCD180-512-SFT, CCD180-1M-SFT, CAM1M-100-SFT, CAM512, CAM512-UVC, CAM1M100 |
| Sensor Architecture | Back-Illuminated CCD |
| Pixel Format | Linear (8K×1) and Area (512×512 to 1024×1024) |
| Pixel Size | 7–18 µm |
| Readout Modes | Frame Transfer, Bidirectional Shift |
| Max Frame Rate | Up to 17 kHz (line-scan), 492 fps (area-scan with 2×2 binning) |
| Readout Noise | <25 e⁻ rms (typical) |
| Fill Factor | 100% |
| Output Interface | Camera Link |
| Quantum Efficiency | Enhanced in UV (200–400 nm) |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | DS345 |
| Frequency Range | 1 µHz to 30.2 MHz |
| Frequency Resolution | 1 µHz |
| Waveforms | Sine, Square, Ramp, Triangle, Noise |
| Modulation Types | AM, FM, Phase Modulation, Burst, Linear/Logarithmic Sweep |
| Arbitrary Waveform Memory | 16,300 points |
| Sample Rate | 40 MSa/s |
| Reference Input | 10 MHz |
| Optional Interfaces | RS-232, GPIB |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | LDC501 |
| Pricing | Available Upon Request |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | PG108 |
| Type | Portable Vacuum Measurement System |
| Operating Temperature | Up to 150 °C |
| Sealing | All-metal construction with copper knife-edge gasket |
| Pressure Range | 1 × 10⁻⁸ Torr to 1000 Torr (dependent on ion gauge configuration) |
| Controller Compatibility | Fully compatible with SRS IGC100 Intelligent Gauge Controller |
| Filament Options | ThO₂/Ir or tungsten, single- or dual-filament |
| Ion Gauge Types Supported | Glass-envelope, metal-envelope, and ultra-high-vacuum (UHV)-rated Bayard-Alpert gauges |
| Compliance | Designed for integration into GLP/GMP-compliant vacuum systems requiring traceable, stable pressure monitoring |
| Brand | SRS / Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | PRS10 |
| Output Frequency | 10 MHz |
| Phase Noise | –130 dBc/Hz @ 10 Hz |
| Aging Rate | < 5 × 10⁻¹¹ per month |
| Holdover Stability | Stratum 1 level for 72 hours |
| Interface | RS-232 |
| Expected Lifetime | 20 years |
| Input | 1 PPS external reference (e.g., GPS-disciplined) |
| Compliance | Designed for telecom synchronization, metrology, and defense-grade timing applications |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | UK |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | PS300 Series |
| Output Voltage Ranges | 1.25 kV, 2.5 kV, 5 kV, 10 kV, 20 kV |
| Voltage Resolution & Repeatability | 1 V |
| Voltage Setting Accuracy | ±0.01% of full scale |
| Voltage Regulation Accuracy | ±0.001% of full scale |
| Response Time | <10 µs |
| Output Ripple | 0.0015% of full scale |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | QCM200 System |
| Pricing | Available Upon Request |
| Measurement Accuracy | ±1.5 ppm |
| Minimum Detectable Mass Change | 1 ng |
| Operating Frequency | >5 MHz |
| Interface | RS-232 |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | RGA |
| Mass Range | 100 amu / 200 amu / 300 amu |
| Resolution | < 0.5 amu |
| Dynamic Range | 6 decades |
| Detection Limit | 5 × 10⁻¹⁴ Torr (with EM detector) |
| Sensitivity | 2 × 10⁴ A/Torr (FC), >200 A/Torr (EM) |
| Operating Pressure Range | 10⁻⁴ Torr to UHV (FC) |
| Max. Probe Temperature | 300 °C (without ECU) |
| Max. ECU Temperature | 70 °C |
| Detector Options | Faraday Cup (standard), Electron Multiplier (optional) |
| Interface | RS-232 |
| Software | Real-time RGA Windows & LabVIEW drivers |
| Replaceable Components | Filament and electron multiplier in situ |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | RGA1-100amu, RGA1-200amu, RGA1-300amu |
| Mass Range | 1–100 amu / 1–200 amu / 1–300 amu |
| Resolution | <0.5 amu (FWHM) |
| Detection Limit | 5 × 10⁻¹⁴ Torr (with EM detector) |
| Sensitivity | 2 × 10⁻⁴ A/Torr (Faraday cup) |
| Dynamic Range | 6 decades |
| Response Time | 1–2 s |
| Detector Options | Faraday Cup (standard), Electron Multiplier (optional) |
| Operating Pressure Range | 10⁻⁴ Torr to UHV (FC) |
| Max. Probe Temperature | 70 °C |
| Max. Bakeout Temperature | 300 °C (probe only, ECU excluded) |
| Interface | RS-232 |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | RGA100 |
| Mass Range | 1–100 amu |
| Resolution | <1 amu |
| Dynamic Range | 6 decades |
| Detection Limit | 5×10⁻¹⁴ Torr |
| Interface | RS-232 |
| Software | RGA Windows & LabVIEW |
| Replaceable Components | Field-replaceable electron multiplier and filament |
| Compliance | Designed for UHV and HV vacuum environments per ASTM E1981 and ISO 14523-2 |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SG396 |
| Pricing | Available Upon Request |
| Frequency Range | DC to 6.075 GHz |
| Frequency Resolution | 1 µHz |
| Phase Noise | –116 dBc/Hz @ 1 GHz |
| Modulation Types | AM, FM, I/Q (300 MHz RF bandwidth), ASK, FSK, MSK, PSK, QAM, VSB, Custom I/Q |
| Standard Waveform Sets | GSM, EDGE, W-CDMA, APCO-25, DECT, NADC, PDC, ATSC-DTV, TETRA |
| Interfaces | Ethernet, GPIB, RS-232 |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | SR400 |
| Maximum Count Rate | 200 MHz |
| Pulse Resolution | 5 ns |
| Operating Modes | Gated and Continuous |
| Interface | GPIB and RS-232 |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Model | SR540 |
| Frequency Range | 4 Hz to 3.7 kHz (inner slot: 4–400 Hz |
| outer slot | 400–3700 Hz) |
| Phase Stability | 0.2°–0.5° |
| Frequency Accuracy | <2% |
| Output Signal | 5 V TTL (HCT-compatible), BNC |
| Control Interface | Front-panel thumbwheel + external 0–10 V analog input |
| Reference Output | Sync TTL pulse with adjustable phase offset |
| Blade Material | Chemically blackened, demagnetized brass |
| Blade Thickness | 0.5 mm |
| Diameter | 102 mm |
| Slot Configurations | Dual concentric slots (inner + outer) |
| Dimensions (Controller) | 216 × 89 × 343 mm |
| Weight (Controller) | 3.2 kg |
| Motor Life | >6000 hours |
| Compliance | CE, RoHS, FCC Class A |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SR620 |
| Price | Upon Request |
| Single-Shot Time Resolution | 25 ps |
| Frequency Range | DC to 1.3 GHz |
| Time Interval Resolution | 25 ps |
| Display Resolution | 11 digits (at 1 s gate time) |
| Output Interfaces | GPIB (IEEE-488.2), RS-232 |
| Data Output | XY Plot Mode, Statistical Analysis (Allan Deviation, Histogram, Mean/Std Dev), Real-Time Serial Streaming |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | SR785 |
| Frequency Range | DC to 102.4 kHz |
| Dynamic Range | 90 dB (typical), 145 dB (sine sweep) |
| Real-Time Bandwidth | 100 kHz |
| Storage Memory | 32 MB |
| Analysis Modes | Cross-spectrum, frequency response, coherence, harmonic, band, and sideband analysis |
| Tracking Generator | Yes |
| Interfaces | GPIB (IEEE-488.2), RS-232 |
| Filter Types | 1/1-octave, 1/3-octave, 1/12-octave real-time FFT |
| Curve Fitting | 20-pole/20-zero |
| Input Channels | 2 independent analog inputs with configurable range/resolution |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported |
| Model | SR830 |
| Component Type | Signal Detection & Demodulation Module |
| Gain Range | 2 nV to 1 V (full-scale) |
| Frequency Range | 0.001 Hz to 102.4 kHz |
| Dynamic Reserve | >100 dB |
| Time Constant Range | 10 µs to 30 ks |
| Input Noise | 6 nV/√Hz @ 1 kHz (voltage), 0.13 pA/√Hz @ 1 kHz (10⁶ V/A current gain), 0.013 pA/√Hz @ 100 Hz (10⁸ V/A) |
| Phase Resolution | 0.008° (computer-controlled), 0.01° (front-panel) |
| Phase Drift | 0.01°/°C (<10 kHz), 0.1°/°C (>10 kHz) |
| Input Impedance (Voltage) | 10 MΩ + 25 pF, AC/DC coupled |
| Input Impedance (Current) | 1 kΩ to virtual ground |
| Reference Input | TTL or sine wave, 400 mV rms min (sine), logic-level compatible (TTL) |
| Interface | IEEE-488.2 (GPIB), RS-232 |
| Power | 40 W, 100–240 V AC, 50/60 Hz |
| Dimensions | 432 × 495 × 133 mm (L×W×H) |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | SR830 |
| Frequency Range | 1 mHz to 102.4 kHz |
| Dynamic Reserve | >100 dB |
| Phase Resolution | 0.01° |
| Temperature Stability | 5 ppm/°C |
| Time Constant Range | 10 µs to 30 ks (up to 24 dB/oct rolloff) |
| Built-in Reference Oscillator | Yes |
| Interfaces | GPIB (IEEE-488), RS-232 |
| Internal Signal Source Spectral Purity | 80 dBc |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | SR850 |
| Frequency Range | 1 mHz to 102.4 kHz |
| Phase Resolution | 0.001° |
| Architecture | Dual-channel DSP-based |
| Display | Integrated graphical LCR-style interface |
| Optional Accessories | SR540 Optical Chopper, SR550/SR552/SR554 Low-noise Preamplifiers |
| Brand | SRS/Stanford Research Systems |
|---|---|
| Origin | USA |
| Model | SR865 |
| Frequency Range | DC to 2 MHz |
| Dynamic Reserve | 120 dB |
| Reference Modes | Single and Dual Reference |
| Internal Oscillator Range | 1 mHz to 2 MHz |
| Timebase I/O | 10 MHz TTL-compatible Input/Output |
| Display | 7″ capacitive touchscreen (800 × 480) with dual-channel time-domain and FFT visualization |
| Memory | 8 million points (internal waveform buffer) |
| Data Export | ASCII via USB mass storage |
| Interfaces | GPIB (IEEE-488.2), RS-232, USB 2.0 (CDC & MSC), 10/100 Ethernet, HDMI video output |
| Scan Capabilities | Sweep of reference frequency, amplitude, and DC offset |
| Compliance | CE, RoHS, FCC Class A |