FreeLists / si-list / [SI-LIST] Re: ESD Protection Of ATF-55143

["Steve GullWing" <Steve@xxxxxxxxxxxxxx>]

Thank you James,
                 Unfortunately the Agilent device is not able to handle the 
+/-9V it is exposed to  before the ESD diodes clamp the voltage.  Hence my 
problem.

Regards
Steve
GullWing Ltd

----- Original Message ----- 
From: "Peterson, James F (FL51)" <james.f.peterson@xxxxxxxxxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Sent: Tuesday, October 05, 2004 3:32 PM
Subject: [SI-LIST] Re: ESD Protection Of ATF-55143


> Steve,
>
> I really don't know if this will help you since I am not familiar with the
> ATF-55143, but I can't resist, so here goes :
>
> For digital logic devices, ESD protection devices are not suppose to turn 
> on
> at the absolute maximum ratings of the device they're trying to protect.
> They should turn on (start protecting) at some greater value.
> The absolute maximum rating of a logic device is a DC value not an AC 
> (ESD)
> limit.
> The question might be better phrased : Can your ATF-55143 survive an ESD
> pulse of +/- 9V? This is the limit it would have to survive before the ESD
> protection device kicks on. If this were digital logic the answer would be
> easily "yes".
>
> Jim
> Honeywell
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]On
> Behalf Of Steve GullWing
> Sent: Tuesday, October 05, 2004 10:10 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: ESD Protection Of ATF-55143
>
>
> Dear Si'ers,
>             I am using a ATF-55143 Single Voltage E-pHEMT Low Current Low
> Noise device in an RF front end application.  I need to make sure I am
> complient with contact ESD to +/-8KV.  The device has an absolute maximum
> rating of +1V to -5V.  Therefore the CM1213 I am using which is great as a
> very low capacitance ESD device, but of no use, since its break down 
> voltage
>
> is +/-9V.
>
> Anybody got any ideas as to how to use the ATF-55143 device and ESD 
> protect
> it without loading it with high capacitive ESD devices in my front end
> application.
>
> Regards
> Steve
> GullWing Ltd
>
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