SV: Re: [sdiy] Sic Transit OTA Mundi

[karl dalen]

--- Roman <modular at go2.pl> skrev:

> Analog Devices recently announced new analog process called iPolar,
> that alows 36V circuitry in 1/4 of the silicon space used before.
> That may help the greedy ones to think about 36V again.
> So far they plan to make equivalents of OP27, OP07 and some others
> AFAIR. High voltage analog won't die anytime soon.

Exactly, and motor controll are growing, higside and other PWM
power based silicon switching are growing in sales and many are
high voltage processes!

Reg
KD 

> 
> Roman
> 
> ----- Original Message ----- 
> From: "Grant Richter" <grichter at asapnet.net>
> To: "Don Tillman" <don at till.com>
> Cc: <synth-diy at dropmix.xs4all.nl>
> Sent: Friday, May 27, 2005 8:21 PM
> Subject: Re: [sdiy] Sic Transit OTA Mundi
> 
> 
> > >
> > > Or would Intersil consider introducing an improved 21st century
> > > version of the the CA3280, made in a modern fab?
> > >
> > 
> > Hi Don,
> > 
> > Thank you for fighting the good fight.
> > 
> > I believe the problem is that "modern" fab processes do not like 30  
> > volts across a die.
> > 
> > That requires a large die, and they can probably make 10,000 1.8 volt  
> > transistors from the same square of silicon needed for forty 30 volt  
> > transistors.
> > 
> > At least thats what the reps tell me. The move to low voltage ANALOG  
> > is motivated by greed. Low voltage parts are much more profitable  
> > than high voltage parts.
> > 
>