Current Input (Optional)
Current Input (optional)
BNC (for A-input, only)
Input Coupling
DC
Damage Threshold
0.12 mA
Full Scale Input Ranges
± 350 nA
rms
, ± 3.5 µA
rms
Input amplifications
1 M
Ω
Bandwidth
dc to 1 MHz
Current Input Noise @ U
out
= 0 V,
τ
= 1 ms
@ 100 kHz,
< 1 pA
rms
/Hz
0.5
Reference Output (for access to the TTL Ref. output see Appendix)
Internal Oscillator
10 mHz .. > 250 kHz
Internal Frequency Resolution
3 mHz
Frequency Accuracy
+/- 50 ppm from 0 °C to 70 °C
Reference Output Voltage
< 0.1 mV
rms
... 7 V
rms
Output Noise @ U
out
= 1 mV
rms
,
τ
= 1 ms
@ 100 kHz
< 230 nV
rms
/Hz
0.5
Reference Input
Frequency Range
1 Hz .. 250 kHz
PLL Locking Time
< (100 ms+ 10 Cycle)
Phase Error
< 4 deg @ f = 1 kHz
Input Amplitude
TTL or sine signal > 100 mV
rms
Input Impedance for TTL
1 M
Ω
Input Impedance for sine
1 M
Ω
(small signals)
1 k
Ω
(large signals)
8 (58)
Summary of Contents for eLockIn 203
Page 52: ...7 APPENDICES 7 1 SCHEMATIC DIAGRAM OF THE SIGNAL PATHS 52 58...
Page 53: ...7 2 DIAGRAM OF THE LOCKIN AMPLIFICATION PATHS Diagram of the preamplifier switches 53 58...
Page 54: ...7 3 FRONTPANEL DIMENSIONS 54 58...
Page 55: ...7 4 INSTRUMENT SPECIFIC TEST SHEETS insert with 10 pages of data 55 58...
Page 56: ...7 5 PREAMPLIFIER CONNECTOR PINOUT 56 58...
Page 58: ...7 7 TRACEABILITY CHART 58 58...
