Family of Brands – ILX Lightwave
®
• New Focus™ • Ophir
®
• Corion • Richardson Gratings™ • Spectra-Physics
®
MLIDA, Rev A
9 SPECIFICATIONS
SIGNAL CHANNEL
Number of Detector Channels
1
Voltage Inputs
Single-ended or differential
Sensitivity
2 nV to 1 V
Current Input
10
6
or 10
8
V/A
Voltage Input Impedance
10
MΩ
+ 25 pF, AC or DC coupled
Current Input Impedance
1 k
Ω
to virtual ground
Gain accuracy
±1% (±0.2% typ.)
Noise
6 nV/
√
Hz at 1 kHz
0.13 pA/
√
Hz at 1 kHz (10
6
V/A)
0.013 pA/
√
Hz at 100 kHz (108 V/A)
Line Filters
50/60 Hz and 100/120 Hz (Q=4)
Common Mode Rejection
Ratio
100 dB at 10 kHz, decreasing by 6 dB/oct above 10
kHz
Dynamic Reserve
>100 dB (without prefilters)
Stability
<5 ppm/°C
REFERENCE CHANNEL
Frequency Range
0.001 Hz to 102.4 kHz
hopper wheel dependent
Reference Input
TTL or sine (400 mVpp min.)
Input Impedance
1
MΩ,
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°
Int. Reference Phase Noise
Synthesized, <0.0001° rms at 1 kHz
Ext. Reference Phase Noise
0.005° rms at 1 kHz, 100 ms, 12 dB/oct
Phase Drift
<0.01°/°C below 10 kHz
<0.1°/°C, 10 kHz to 100 kHz
Harmonic Detection
2F, 3F, ... nF to 102 kHz (n < 19,999)
Acquisition Time
(2 5 ms) or 40 ms, whichever is greater
DEMODULATOR
Stability
Digital outputs and display: no drift.
Analog outputs: <5 ppm/°C for all dynamic reserve
settings.
Harmonic Rejection
-90 dB
Time Constants
10 µs to 30 ks (6, 12, 18, 24, dB/oct roll off).
Synchronous filters available below 200 Hz.
INTERNAL OSCILLATOR
