SRS Labs Lock-In Amplifier Stereo Amplifier User Manual


 
3
SR530 Specification Summary
General
Power 100, 120, 220, 240 VAC (50/60 Hz); 35 Watts Max
Mechanical 17" x 17" x 5.25" (Rack Mount Included) 16 lbs.
Warranty Two years parts and labor.
Signal Channel
Inputs Voltage: Single-ended or True Differential
Current: 10
6
Volts/Amp
Impedance Voltage: 100 M + 25 pF, ac coupled
Current: 1 k to virtual ground
Full Scale Sensitivity Voltage: 100 nV (10 nV on expand) to 500 mV
Current: 100 fA to 0.5 µA
Maximum Inputs Voltage: 100 VDC, 10 VAC damage threshold
2 VAC peak-to-peak saturation
Current: 10 mA damage threshold
1 µA ac peak-to-peak saturation
Noise Voltage: 7 nV/Hz at 1 kHz
Current: 0.13 pA/ Hz at 1 kHz
Common Mode Range: 1 Volt peak; Rejection: 100 dB dc to 1KHz
Above 1KHz the CMRR degrades by 6 dB/Octave
Gain Accuracy 1% (2 Hz to 100KHz)
Gain Stability 200 ppm/°C
Signal Filters 60 Hz notch, -50 dB (Q=10, adjustable from 45 to 65 Hz)
120 Hz notch, -50 dB (Q=10, adjustable from 100 to 130 Hz))
Tracking bandpass set to within 1% of ref freq (Q=5)
Dynamic Reserve 20 dB LOW (1 µV to 500 mV sensitivity)
40 dB NORM (100 nV to 50 mV sensitivity)
60 dB HIGH (100 nV to 5 mV sensitivity)
Bandpass filter adds 20 dB to dynamic reserve
Line Notch filters increase dynamic reserve to 100 dB
Reference Channel
Frequency 0.5 Hz to 100 kHz
Input Impedance 1 M, ac coupled
Trigger SINE: 100 mV minimum, 1Vrms nominal
PULSE: ±1 Volt, 1 µsec minimum width
Mode Fundamental (f) or 2nd Harmonic (2f)