LockIn Amplifier
                     Digital Oscilloscope
                    Spectrum Analyzer
                     Data Acquisition

1.LOCK-IN AMPLIFIER
General
Digital Quad(1)-Phase Lock-In Amplifier               Dynamic Reserve > 135 dB (1)
Noise < 6 nVrms/Hz0.5 @100kHz (1)                      Remote Control(1) Ethernet
Time Constants 0.1 ms ... 1 ks (1)                         Sensitivity 10 nV ... 10 V
Phase Resolution 0.001°                                     

Signal Input
Voltage Input BNC                                      Input Coupling DC or AC (f3dB=2Hz)
Input Impedance 1 MW || 10 pF                Damage Threshold +/- 12 V
Bandwidth dc to 1 MHz (f3dB>1 MHz)      Full Scale Input Ranges ± 5 V, ± 500 mV, ± 50 mV (1)
Input Noise: Uac = 0 V, 50 W @ input
@ 100 kHz, high dynamic < 300 nVrms/Hz0.5 (1)
@ 100 kHz, normal dynamic < 50 nVrms/Hz0.5 (1)
@ 100 kHz, low dynamic < 6 nVrms/Hz0.5 (1)
Roll-Off 6 dB/oct, 12 dB/oct, 24 dB/oct
Time Constants 0.1 ms to 1 ks in1-2-5 steps (1)
or in Sync-Mode:
1/f to 200/f in 1-2-5 steps
Gain Deviations between Dynamic Ranges: < 5 %
 Reference Output (for access to the TTL Ref. output see Appendix)
Internal Oscillator 10 mHz .. > 1 MHz (1)
Frequency Resolution 10 mHz (1)
Frequency Accuracy +/- 50 ppm from 0 °C to 70 °C
Reference Output Voltage < 1 mVpp ... 15 Vpp
Output Noise Uac = 1 mV
@ 100 kHz < 200 nVrms/Hz0.5
PLL
Frequency Range 1 Hz .. 1 MHz
Locking Time < (100 ms+ 10 Cycle)
Phase Error < 4 deg @ f = 1 kHz
Input Amplitude CMOS compatible, see Page
or sine signal > 100 mVrms
Input Impedance for sine 1 MW (small signals)
1 kW (large signals)