eLockIn 204

- digital quad-channel high-frequency Lock-In Amplifier -


e LockIn Amplifier 204
The extraordionary filtering quality of this lock-in amplifier
resulting in more than 130 dB Dynamic Reserve
is achieved by a well chosen oversampling rate of 40 MHz and
a fully digital design with 96 bit wide digital filters.

This warranties best results in all input ranges and allows for
the display of 7 digits of the 32 bit wide floating point results
on all demodulation output channels.

The dedicated analogue input stage
is designed for lowest noise,
a small input capacitance and
optimized for 1 MHz bandwidth.

Colored Spectrum Display / Spectrum Analyser / Oscilloscope

Dual Input / Dual harmonic / Dual Reference

Sine Wave Generator / Internal and External Reference

Web-interface for Remote Control and Data Tracking

Measurement control system with 8 A/D channels and 4 Auxiliary D/A channels

32 MByte Internal Data Storage / USB Data Transfer at Front Panel
Main screen of the lockin display

main LockIn screen
Measurement screen

Measurement screen
Oscillloscope screen

oscilloscope screen

Manual
(961 KB)

PDF

LockInRemote
(1 MB)

PDF

Dynamic Reserve
>135 dB
Remote control
Ethernet
Integrated Oscillator 10 mHz ... >1 MHz (3 mHz resolution)
Noise @ 1 kHz
< 6 nVrms/Hz 0.5
Time constants
100 µs... 1 ks
Sensivity ranges
10 nV ... 10 V
Phase resolution
0.001 deg
Frequency stability @ 10 kHz
50 mHz/year (@ 20 °C +/- 3 °C)

Reference Output

Internal Oscillator 10 mHz .. > 1 MHz
Frequency Resolution < 3 mHz
Frequency Accuracy ± 50 ppm from 0 °C to 70 °C
Reference Output Voltage < 1 mVpp ... max. 20 Vpp
Output Noise @ 100 kHz for 7 Vrms output < 60 nV/√Hz

Reference Input

Frequency range 1 Hz to 1 MHz
Locking time < 10 periods + 200 ms
Phase error < 10 degree @ 1 MHz
left to eLockIn 203

e LockIn Amplifier 203
to eLockIn 205 right

e LockIn Amplifier 205