Four Channel Digital Interface

Four Channel Digital Interface

  • USB or RS232 interface
  • C++ code examples including .dll libraries
  • Compact and simple to use, Microsoft® HyperTerminal configuration file included
  • Independent control of voltage levels on four channels to 1 mV resolution
  • Includes National Instruments LabVIEW™ Virtual Instrument drivers to interface with custom software


Our Four Channel Digital Interface is designed for high precision computer control of up to four Meadowlark Optics nematic liquid crystal devices at one time. The interface comes with software to allow independent control of the amplitude of the 2 kHz square wave drive for four separate nematic liquid crystal cells. Additionally, the Interface also provides the capability for temperature monitoring and control on one channel. The amplitude of the 2 kHz square wave output can be driven by either an external DC analog signal supplied to a front panel connector or specific CellDRIVE generated waveforms including sinusoidal, square, triangle, sawtooth and transient nematic effect waveforms. Additional functions include the capability to output a sync pulse on a front panel connector at desired points in the CellDRIVE generated waveforms and the ability to save/restore all CellDRIVE settings to/from a file.

Specifications - Four Channel Digital Interface
Fundamental Drive Waveform 2 kHz ac square wave
Modulation Amplitude 0-10 V rms
Modulation Resolution 1 mV (0.155 mV using LabVIEW™ subroutines)
DC Offset <5 mV
Communications Interface USB or RS232
LC Cell to Controller Connections SMA-SMB, 2 m cable length
Power Requirements 100-240 V ac
47-63 Hz
500 mA
CE Compliance Compliant


Ordering Information - 4 Channel Digital Interface
Item Part Number
4 Channel D3050
Two year and three year extended warranty options available.
Please contact your Meadowlark Optics sales engineer.