FMA (Floating Microelectrode Array)


Platinum Iridium (Parylene C Coating)

Electrode Shank Diameter:

75 Micron

Number of recording Electrodes (4-32):

(Must be even number)

Recording Electrodes Impedance:

(KΩ _(100KΩ-2500KΩ))

Recording Electrodes Tip Shape: (Check one)

Standard (Typical)

Include a Reference Electrode? (Check one)

Yes(Typical)-Same material as Electrode with 25KΩ Impedance

Include a Ground Electrode? (Check one)

Yes(Typical)-Same material as Electrode with no insulation


Standard - 36-pin (Good for upto 32 channels)
Standard-18-pin Male Omnetics Connector (A8141-001).Recording Channel Pinout for each connector is as follows:(Top Veiw of the array)
Standard - 10-pin (0.050” pitch) Male Omnetics connector (A11365-001) for 4 to 10 contact sites only.


1. For more than 16chan arrays, the scheme would be the same for each 16
channels, so E1-E16 will be replaced with E17-E32, E33-E48, and E49-

2. When Ground is a silver wire and not an electrode, the silver wire will extend from the connector, out of the epoxy. Silver wire should not be inserted into the brain, as it is toxic. It should rather be connected to a screw on the skull. screw on the skull.

Recording Channel Pinout: (Insert Drawing here)

Physical Measurements

Array Size:

Up to 16 electrodes-89.1x2.45x0.5mm

Cable Length (C) below connector: (Check one)

5 cm (Typical)

Length of Electrodes (L): (Check one)

3 mm (Typical)

Array Layout and Channel connections

Looking from the top through the connector, fill out how you would like the electrodes, including the reference and ground electrodes to be laid out using E1-En, GND and Ref. A document to be mailed to you after filling the form along with price.

Array Layout and Channel connections Example

Below is an example of a 16-channel layout assignment: