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: 106 Volts/Amp Impedance Voltage: 100 MΩ + 25 pF, ac coupled Current: 1 kΩ 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 MΩ, ac coupled Trigger SINE: 100 mV minimum, 1Vrms nominal PULSE: ±1 Volt, 1 μsec minimum width Mode Fundamental (f) or 2nd Harmonic (2f) Acquisition Time 25 Sec at 1 Hz 6 Sec at 10 Hz 2 Sec at 10 kHz Slew Rate 1 decade per 10 S at 1 kHz Phase Control 90° shifts Fine shifts in 0.025° steps Phase Noise 0.01° rms at 1 kHz, 100 msec, 12 dB TC Phase Drift 0.1°/°C Phase Error Less than 1° above 10Hz Orthogonality 90° ± 1° Demodulator Stability 5 ppm/°C on LOW dynamic reserve 50 ppm/°C on NORM dynamic reserve 500 ppm/°C on HIGH dynamic reserve Time Constants Pre: 1msec to 100 sec (6 dB/Octave) Post: 1sec, 0.1 sec, none (6 dB/Octave) or none Offset Up to 1X full scale (10X on expand) Both channels may be offset Harmonic Rej -55 dB (bandpass filter in) Outputs & Interfaces Channel 1 Outputs X (RcosØ), X Offset, R (magnitude), R Offset, X Noise, X5 (external D/A) Channel 2 Outputs Y (RsinØ), Y Offset, Ø (phase shift of signal), Y Noise, X6 (external D/A) Output Meters 2% Precision mirrored analog meter Output LCD's Four digit auto-ranging LCD display shows same values as the analog meters Output BNC's ±10 V output corresponds to full scale input, <1Ω output impedance X Output X (RcosØ), ±10 V full scale, < 1Ω output impedance Y Output Y (RsinØ), ±10 V full scale, < 1Ω output impedance Reference LCD Four digit LCD display for reference phase shift or frequency RS232 Interface controls all functions. Baud rates from 300 to 19.2 K GPIB Interface controls all functions. ( IEEE-488 Std ) A/D 4 BNC inputs with 13 bit resolution (±10.24 V) D/A 2 BNC outputs with 13 bit resolution (±10.24 V) Ratio Ratio output equals 10X Channel 1 output divided by the Denominator input. Internal Oscillator Range: 1 Hz to 100 kHz, 1% accuracy Stability: 150 ppm/°C Distortion: 2% THD Amplitude: 1% accuracy, 500 ppm/°C stability