Intan Technologies, LLC: low-noise amplifier microchips for electrophysiology, EKG, EMG, EEG, ECoG, and neural recording headstages and bio instrumentation

RHD2000 Electroplating Board
RHD2000 electroplating board connected to a 128-channel amplifier board via an SPI interface cable. (Click for larger image.)

Main Documentation:

RHD2000 electroplating board datasheet

RHD2000 128-channel amplifier board webpage, datasheet

Electroplating MATLAB GUI (Requires RHD2000 MATLAB Toolbox)

RHD2000 evaluation system datasheet

RHD2000 evaluation system catalog

Supporting Documents:

RHD2000 MATLAB Toolbox

Pricing information


Electroplating control GUI screenshot

RHD2000 electroplating MATLAB GUI screenshot. (Click for larger image.)

RHD2000 Electroplating Board


The RHD2000 electroplating board (Part #C3180) was designed to support the RHD2000 128-channel amplifier board. In combination, these two modules support automated electroplating of dense microelectrode arrays for electrophysiological recording. This board is a component of the RHD2000 Evaluation System, a family of open-source hardware and software that allows users to record biopotential signals from up to 256 low-noise amplifier channels using the revolutionary RHD2000 series digital electrophysiology chips from Intan Technologies.

The 12 cm x 7.5 cm board connects to a host computer via a standard USB 2.0 interface and is powered by a 5 V power supply (included). The electroplating board also includes a multicolored plating control cable that connects to the RHD2000 128-channel amplifier board. The amplifier board and an SPI interface cable must be purchased separately. An RHD2000 USB interface board is also required for normal data acquisition from the amplifier board after electroplating is complete.

The control GUI (graphical user interface) software that operates the electroplating board was written in MATLAB, so the RHD2000 MATLAB Toolbox is also required for plating. The electroplating control GUI is available for download here. Installation instructions may be found on page 2 of the electroplating board datasheet.

The electroplating board contains a programmable DC voltage source and a programmable DC current source. Either method may be used for electroplating. The voltage range is ±3.3 V and the current range is ±10 μA. Voltage steps below one millivolt and current steps below one nanoamp are supported for precise control.

The electroplating board applies voltage or current pulses to individual electrodes connected to the amplifier board, then measures the resulting electrode impedance. This permits closed-loop control of electroplating to reach user-specified target impedances.

The operation of the electroplating board and 128-channel amplifier board are described in more detail in the RHD2000 electroplating board datasheet and 128-channel amplifier board datasheet. All components of the system are shown in the RHD2000 evaluation system catalog.

Complete schematics of this electroplating board are available on our downloads page.

 


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