Product Description

The MUX8 multiplexer is meant for use with 2- or 3- electrode sensors or cells up to 8 channels. The MUX8 module allows to switch:

  • ƒƒ8x WE, 8x RE, 8x CE
  • 8x WE, 8x RE+CE joint together
  • 8x WE with fixed RE and CE

The MUX8 can be mounted directly to the EmStat3 potentiostat module as shown below. Or it can be connected via short wires or flatcable.

Development

The MUX8 module can be mounted directly on the EmStat Development board. Connections to  different cells can be made using the screw terminals on the development board.

The available libraries for software development are also made compatible with the MUX8 module.


IMPORTANT REMARK

It is not possible to apply a potential simultaneously to more than one sensor or cell each with three electrodes. This requires a multipotentiostat, one potentiostat for each channel. This is however possible with two electrode sensors or cells, so when combined counter and reference electrodes are applied.

Specifications

Number of channels 2-8
Multiplexer use: 
  • Sensor arrays with up to eight working, reference and counter electrodes
  • Sensor arrays with up to eight working and eight combined reference/counter electrodes
  • Sensor arrays with up to eight working electrodes all sharing the same reference and the same counter electrode
  • Sensor arrays with eight working electrodes all sharing the same combined reference/counter electrode
On resistance WE, CE and RE channels: 2 ohm typical
Leakage current 10 pA typical at 25 ºC
Charge injection 20 pC typical
Connections: Shielded flat cable, with stripped end leads or

by means of the MUX8 Terminal Block (in shielded housing)

  • eight WE’s
  • eight CE’s
  • eight RE’s
  • one CE used when all WE’s share one counter electrode
  • one RE used when all WE’s share one reference electrode
  • analog ground for shielding
Dimensions of PCB 76 x 74 mm

MUX8 module