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 Femto 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.

Signal Filter

Highpass 0.2 Hz - 1 kHz and

Lowpass 100 Hz - 1 MHz

Highpass 2 Hz - 10 kHz and

Lowpass 100 Hz - 1 MHz

Highpass 0.2 Hz - 1 kHz and

Lowpass 100 Hz - 1 MHz

Highpass 2 Hz - 10 kHz and

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