Specifications

Appendix A

A-1

Measurement Modes

X In-phase
Y Quadrature The unit can simultaneously present any
R Magnitude two of these as outputs
θPhase Angle
Noise
Harmonic 2F or 3F
Noise Measures noise in a given bandwidth centered
on frequency F

Displays

Two LED backlit, two-line, 16-character alphanumeric dot-matrix LCDs giving
digital indication of current instrument set-up and output readings. Edge indicating
analog panel meter. Menu system with dynamic key function allocation.

Signal Channel

Voltage Inputs
Modes A only or Differential (A-B)
Full-scale Sensitivity 20 nV to 1 V in a 1-2-5 sequence
Dynamic Reserve > 100 dB
Impedance
FET Device 10 MΩ // 30 pF
Bipolar Device 10 kΩ // 30 pF
Voltage Noise
FET Device 5 nV/√Hz at 1 kHz
Bipolar Device 2 nV/√Hz at 1 kHz
CMRR > 100 dB at 1 kHz degrading by 6 dB/octave
Frequency Response 0.001 Hz to 120 kHz
Gain Accuracy 0.5 % typ (full bandwidth)
Distortion -90 dB THD (60 dB AC Gain, 1 kHz)
Line Filter attenuates 50, 60, 100, 120 Hz
Grounding BNC shields can be grounded or floated via
1 kΩ to ground