MUX8-R2 Multiplexer for 8 cells

To complete your setup, we can offer you cables for connecting your electrodes or combining multiple MUX8 devices to increase the number of channels (daisy chain).


Product Description

This multiplexer allows the usage of a single PalmSens or EmStat Blue with up to 8 electrochemical cells, by switching between the different cells. A great way to raise efficiency.

A single PalmSens or EmStat Blue can be used to work with multiple working electrodes or a sensor array by means of a multiplexer. The multiplexer switches between the working electrodes in the range of milliseconds. There are two versions of the multiplexer available.

MUX8-R2 multiplexer: enables to work with up to eight 2- or 3- electrode systems.

MUX16 multiplexer: enables to work with up to sixteen 2- electrode systems. The 16 working electrodes can have a shared counter and reference electrode, or each working electrode is matched with its own combined reference/counter electrode. If only the working electrodes are switching, one reference and one counter electrode shared by all working electrodes is a possible configuration.

The MUX8-R2 is the successor of our popular MUX8. The design has been revised and improved leading to several new features.

  • improved performance for OCP measurement
  • reduced charge injection by switching
  • all hardware settings are controlled by the software making it unnecessary to flick a physical switch
  • allows to be used with the new 4-in-1 cell cables (easier and better connections), i.e. MUX8 Connection Terminal is not needed
  • allows to connect auxiliary input (like temperature sensor)
  • LEDs to show which channel is selected
  • daisy chaining multiple MUX8-R2 boards (expansion up to 128 channels)


Standard packaging includes two double shielded D-Sub cables ending in 2 mm banana plugs and a USB cable. As alternatives we can provide a PCB with screw terminalsD-Sub cable ending in ferrules or Screen Printed Electrode Adapter. Each of these cables can be connected to 4 channels, if all 8 channels are used, two cables are needed.




number of channels 8 (up to 128 when daisy chained)
multiplexerswitches 8 x (WE, S, RE and CE)
on resistance for WE1.5 ohm typical
charge injection on WE20 pC typical
leakage current< 20 pA (5 pA typical) at 25 ºC
switching time2 ms
compliance voltage± 10 V
housingaluminium: 138 mm x 121 mm x 37 mm
weight +/- 500 g
temperature range0 ºC to + 50 ºC
power supplyUSB


The MUX8-R2 has the following connections:



Y-cable connects to both potentiostat sensor connector and (digital) AUX


Can be used to measure auxiliary input like temperature or pH, and to switch external hardware using two digital control lines that can be set in PSTrace


Connects to Input of next multiplexer, for daisy-chaining multiple multiplexers.


Input for extra power when 
≥3 multiplexers are daisy-chained

Channel 1-4

Connects to sensor cables 1-4

Channel 5-8Connects to sensor cables 5-8