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Design >> Analog Design >> Help - Pass Transistor
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Message started by calum on Jan 18^th, 2006, 10:30am

Title: Help - Pass Transistor
Post by calum on Jan 18^th, 2006, 10:30am

Hi,

I am a digital engineer so please excuse my foray into the analog forum....

I have a differential output driver, I have to isolate the outputs from the driver when my system is about to loose power. The outputs from the driver are ARINC 429 levels, this is an aerospace standard. The voltage levels on the output can range from +12V to -12V on each of the outputs of the differential driver. The frequency of the data is no more than 100KHz and there is no constraint on rise/fall times of the waveform. I have a dozen of these outputs on my board and I am space constrained which is why I am looking at a pass transistor solution.

My questions are
1) Is it possible with a pass transstor?
2) If so any solutions or pointers on where to start would be appreciated.

Thanks
Calum

Title: Re: Help - Pass Transistor
Post by Marc Murphy on Jan 25^th, 2006, 3:17pm

How about a solid-state relay?

Title: Re: Help - Pass Transistor
Post by calum on Jan 26^th, 2006, 11:26am

I'm space constrained so unfortunately I don't have room to add about a dozen solid state relays.

Thanks
Calum