Re: charge sources and matrix

Hello John,

Thanks for ur reply! I meant to say that I have 32 current sources
which I need to connect to 96 different locations. any current source
can be capable of acessing any location out of 96 locations and the
current sources's output should not be connected together.


If you can't implement 96 current sources you really need a crosspoint switch here. It's been a while that I used them off-the-shelf in ultrasound beamformer designs because nowadays this gets integrated on ASICs. But on the last one that was COTS we took a switch chip that was meant to be used for ISDN lines. A big fat chip with dozens of inputs and outputs, IIRC it was made by a company that usually does FPGA.

If you can do 96 current sources that could end up much lower in cost.

Regards, Joerg

http://www.analogconsultants.com
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