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cyclotron-bonn / beamposition_controller

A PI-Controller to control the beam position implemented digitally on an Arduino which can be mounted on a PCB which contains the necessary level-conversions and a multi-channel DAC.
MIT License
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Transimpedance amplifiers #6

Open leloup314 opened 1 year ago

leloup314 commented 1 year ago

Since we are using a 4 ch ADC, we can use the AD8618 4 ch low-offset amplifier for the transimpedance amplification. This way, we end up with one chain per full slit pair (horizontal & vertical)

leloup314 commented 1 year ago

Keep in mind the sign of the input current: for ions the current will be positive, for electrons negative. For normal controller operation, we therefore expect a positive current which will result in a negative voltage output.