| Frequency Range |
0.001 Hz to 102.4 kHz |
| Dynamic reserve |
>100 dB (without prefilters) |
| Voltage inputs |
Single-ended or differential |
| Sensitivity |
2 nV to 1V |
| Current input |
106 or 108 V/A |
| Input impedance |
Voltage: 10MΩ+25 pF, AC or DC coupled
Current: 1 kΩ to virtual ground |
| Gain accuracy |
±1% (±0.2% typ.) |
| Noise (typ.) |
6 nV/√Hz at 1 kHz
0.13 pA/√Hz at 1 kHz (106 V/A)
0.013 pA/√Hz at 100Hz (108 V/A) |
| Line filters |
50/60Hz and 100/120Hz (Q=4 ) |
| CMRR |
100 dB to 10 kHz, decreasing by 6 dB/oct above 10 kHz |
| Dynamic reserve |
>100 dB (without prefilters) |
| Stability |
<5 ppm/°C |
| Reference input |
TTL or sine (400mVpp min.) |
| Input impedance |
1MΩ, 25 pF |
| Phase resolution |
0.01° front panel, 0.008° through computer interfaces |
| Absolute phase error |
<1° |
| Relative phase error |
<0.001° |
| Orthogonality |
90° ± 0.001° |
| Phase noise |
Internal ref. : Synthesized, <0.0001° rms at 1 kHz
External ref. : 0.005° rms at 1 kHz (100ms time constant, 12 dB/oct) |
| Phase drift |
<0.01°/°C below 10 kHz
<0.1°/°C above 10 kHz |
| Harmonic detection |
2F, 3F, ... nF to 102 kHz (n < 19,999) |
| Acquisition time |
(2 cycles+5ms) or 40ms, whichever is larger |
| Stability |
Digital outputs and display: no drift
Analog outputs: <5 ppm/°C for all dynamic reserve settings |
| Harmonic rejection |
–90 dB |
| Time constants |
10µs to 30 ks (6, 12, 18, 24 dB/oct rolloff). Synchronous filters available below 200Hz |