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FFT Analyzer SR760 and SR770 SRS Stanford Research System

Mã sản phẩm: SR760 and SR770
Sử dụng cho Model:
Hãng SX: SRS Stanford Research System
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Tình trạng

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Đặt hàng
The SR760 and SR770 are single-channel 100 kHz FFT spectrum analyzers with a dynamic range of 90 dB and a real-time bandwidth of 100 kHz. Additionally, the SR770 includes a low-distortion source which allows you to measure the transfer functions of electronic and mechanical systems.

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Thông tin sản phẩm

Frequency  
Measurement range 476 µHz to 100 kHz
Spans 191 mHz to 100 kHz in a binary sequence
Center frequency Anywhere within the 0 to 100 kHz measurement range
Accuracy 25 ppm from 20 °C to 40 °C
Resolution Span/400
Window functions Blackman-Harris, Hanning, Flat-Top and Uniform
Real-time bandwidth 100 kHz
Signal Input
Number of channels 1
Input Single-ended or differential
Input impedance 1 MΩ, 15 pF
Coupling AC or DC
CMRR (at 1 kHz) 90 dB (input range <-6 dBV)
80 dB (input range <14 dBV)
50 dB (input range ≥14 dBV)
Noise
     Typ. 5 nVrms/√Hz at 1 kHz (-166 dBVrms/√Hz)
     Max. 10 nVrms/√Hz (-160 dBVrms/√Hz)
Amplitude
Full-scale input range -60 dBV (1.0 mVp) to +34 dBV (50 Vp) in 2 dB steps
Dynamic range 90 dB (typ.)
Harmonic distortion No greater than -80 dB from DC to 100 kHz (input range 0 dBV)
Spurious No greater than -85 dB below full scale (<200 Hz). 
No greater than -90 dB below full scale to 100 kHz
(-50 dBV input range).
Input sampling 16-bit A/D at 256 kHz
Accuracy ±0.3 dB ± 0.02 % of full scale (excluding windowing effects)
Averaging RMS, Vector and Peak Hold. Linear and exponential averaging up to 64k scans.
Trigger Input
Modes Continuous, internal, external, TTL
Internal level Adjustable to ±100 % of input scale. Positive or negative slope.
Min. trigger amplitude 10 % of input range
External level ±5 V in 40 mV steps. Positive or negative slope. 10 kΩ Impedance
Min. trigger amplitude 100 mV
External TTL Requires TTL level, (low <0.7 V, high >2 V)
Post-trigger Measurement record is delayed by 1 to 65,000 samples (1/512 to 127 time records) after the trigger. Delay resolution is 1 sample (1/512 of a record).
Pre-trigger Measurement record starts up to 51.953 ms prior to the trigger. Delay resolution is 3.9062 ms.
Phase indeterminacy <2°
Display Functions
Display Real, imaginary, magnitude or phase
Measurements Spectrum, power spectral density, time record and 1/3 octave
Analysis Band, sideband, total harmonic distortion and trace math
Graphic expand Display expand up to ×50 about any point
Harmonic marker Displays up to 400 harmonics
Data tables Lists Y values of up to 200 points
Limit tables Detects data exceeding up to 100 user-defined upper and lower limit trace segments.

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