PGA power supply

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PGA power supply

Post  holly87 on Wed May 25, 2011 9:38 pm

Hi,
I am using a PGA with an external power supply (PS20W). The PGA output is sent to a ME64_USB acquisition system, powered by a PS40W external power supply. Then, data are sent to a PC. I'm wondering why I have to supply the PGA with PS20W..Couldn't I use only the PS40W to energise all the devices connected to ME64_USB (i.e the PGA or a custom filter amplifier board) ?
thank you

Giulia Smile

holly87

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Re: PGA power supply

Post  Frank MCS on Sun May 29, 2011 8:17 pm

Dear Giulia,
of course one power supply is enough. The PS40W attached to the USB-ME64 is not actually supplying any power for the DAQ itself, but only to any attached device. So you can skip the PS20W attached to the PGA.

Best regards Frank
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