Modules provide four independent resistor channels

The EMX-70XX series is designed for such applications as precision simulation of RTDs and other resistance-based sensors; process control; ATE calibration; controlled loading of Devices Under Test (DUTs); and potentiometer simulation.

All modules in the EMX-70XX series can provide four independent channels of programmable resistors, with four decades per channel. Each channel is equipped with its own sense leads for feedback.

The EMX-7004 module is designed to deliver stability and accuracy (up to ±0.02% of programmed value ±0.5Ω) for any resistance value from 1-16,383Ω. It can be adjusted in 1Ω increments, either through the software Application Programming Interface (API) or the dynamic soft front panel provided.

The EMX-7005, EMX-7006, and EMX-7007 modules are optimised for applications requiring higher resistance values, with programmable settings ranging from 163kΩ to 16,383MΩ. All four cards offer a 0.5W power rating and low thermal offset (less than or equal to ±25μV). IVI-COM, IVI-C, and LabVIEW drivers for the modules are included. The EMX-7014, EMX-7015, and EMX-7016 are available for general purpose applications with less stringent accuracy requirements.

“The EMX-70XX series is designed for easy configurability. Two or four channels can be tied together and programmed to operate as a potentiometer. They also support both parallel and series operation. Two or more channels can be connected in parallel for increased accuracy and to reduce the step size, or, if preferred, two or more channels can be connected in series to increase the range,” noted Jon Semancik, Product Line Manager, VTI Instruments.