Search results

  1. V

    DNA Pin photodiodes, what are their voltage and current?

    Hello everybody, I have to drive a matrix for revealing DNA samples, well this matrix is made up by p-i-n photodiodes which generate current if an UltraViolet radiation hit them. I'm desperatly looking for their working voltage and current.. I mean: what's the voltage they have when flowing...
  2. V

    how to reduce power consumption when power supply is given?

    Hi, I'm designing a PCB and I would like to reduce power consumption. I already have a +-5V power supplier but i would like to use 3,3V ICs in order to reduce power consumption. I could I do that? :confused: :)
  3. V

    How to drive 16 rows of UV photodiodes providing both negative and positive voltage?

    Hello, I have to drive 16 rows of a matrix of photodiodes, I have to provide a positive voltage in the range +0,4V, +3V to the row I want to activate, meanwhile I have to provide negative voltage in the range -4V -0,2V to all the other 15 rows. The difficulty is that I have to control the rows...
  4. V

    matrix driver & MCP23017

    hi you, i would like to know if the MCP23017/MCP23S17 is able to give negative voltage oputput for logic 0 and positive voltage output for logic 1. I urgently need a driver or controller that lets me drive 16 photodiodes with negative voltage when turned off and positive voltage when turned on...
Top