Features

• Single and dual phase
• Rugged aluminum housing
• BNC connectors for input and output signals
• Working frequency 5 Hz up to 120 kHz
• Phase shifter 0° ... +360°
• Current and voltage input
• Optional reference oscillator module SOM-1 available

 

Lock-In-Amplifier as a Standard

The high prices for usual desktop lock-in amplifiers mean that they are not as common in noise limited experiments as would be desirable. For this reason FEMTO designed a complete, easy-to-use and high performance lock-in amplifier expanding the reach of lock-in amplifiers into cost-sensitive applications.

 

Programming the Lock-In Manually or by Computer

The Series LIA-MV(D)-200 Lock-In Amplifiers are designed as stand-alone units which can be programmed both manually by front-panel switches and remotely by a digital interface. By using a PC with a standard digital I/O card all main settings for sensitivity, time constant and phase shift can easily be controlled. Therefore, the Series LIA-MV(D)-200 Lock-In Amplifiers are the ideal tool for integration into complex or automated test systems as well as for use as standard lab unit in cost-sensitive applications.

 

Applications

• Spectroscopy
• Luminescence, fluorescence, phosphorescence measurements
• Light scattering measurements
• Laser stabilization
• Opto-electronical quality control
• Integration into industrial and scientific measurement-systems
• Alternative to expensive desktop lock-in amplifiers for general lab use

 

Model	LIA-MV-200-L Single Phase	LIA-MV-200-H Single Phase	LIA-MVD-200-L Dual Phase	LIA-MVD-200-H Dual Phase
Working Frequency	5 Hz - 10 kHz	50 Hz - 120 kHz	5 Hz - 10 kHz	50 Hz - 120 kHz
Time Constants	3 ms - 10 s 6 or 12 dB/oct.	300 µs - 1 s 6 or 12 dB/oct.	3 ms - 10 s 6 or 12 dB/oct.	300 µs - 1 s 6 or 12 dB/oct.
Adjustable Signal Filter [6 dB/oct.]	Highpass 0.2 Hz - 1 kHz Lowpass 100 Hz - 1 MHz	Highpass 2 Hz - 10 kHz Lowpass 100 Hz - 1 MHz	Highpass 0.2 Hz - 1 kHz Lowpass 100 Hz - 1 MHz	Highpass 2 Hz - 10 kHz Lowpass 100 Hz - 1 MHz
Datasheet	212 kB	212 kB	222 kB	222 kB
Outputs (BNC)	X = in phase, ±10 V full scale, short-circuit protected, Signal monitor output		X = in phase, Y = quadrature, R = magnitude, ±10 V full scale, short-circuit protected, Signal monitor output
Sensitivity (Full Scale)	Voltage: 3 µV - 1 V in 1-3-10 steps Current: 30 pA - 10 µA in 1-3-10 steps
Voltage Input (BNC)	Instrumentation amplifier, noise 12 nV/√Hz
Current Input (BNC)	Transimpedance amplifier, gain 100 kV/A, noise 0.4 pA/√Hz
Reference Input (BNC)	±100 mV to ±5 V, switchable to TTL
Phase	Adjustable 0° - 360°; resolution: 8-bit @ f ≤ 60 kHz, 7-bit @ f > 60 kHz Temperature drift < 0.01°/K
Max. Dyn. Reserve	80 dB
Digital Control	16 TTL/CMOS inputs: 8-bit phase, 4-bit time constant, 4-bit sensitivity
Power Supply	±15 V, +120 mA / -60 mA
Dimensions	223 x 105 x 65 mm (L x W x H), weight 1,000 g (2.2 lbs)

 

The optional Reference Oscillator SOM-1 can be connected by an extension connector inside the module. Power supply via 3-pin Lemo^® socket. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet.
 

Block Diagram LIA-MVD-200-H