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From: JW on 13 Jan 2010 05:30 On Tue, 12 Jan 2010 19:34:36 -0500 Hammy <spam(a)spam.com> wrote in Message id: <hu4qk5tda3gn2cfg0pim1mtf3lgrg7v7v0(a)4ax.com>: >Whenever you click on a link on Google even when doing a search it >has www.google.com before the actual URL. > >Google been doing this for a couple months now. I don't know what the >purpose is [snip] Compiling statistics would be my guess.
From: Joel Koltner on 13 Jan 2010 11:40 Did that design make it through fab, Jim, or did the company start imploding first? I thought that combined bipolar/CMOS ("BiFET?") processes were generally considered too exotic/unnecessary-due-to-performance-improvements-in-CMOS these days? Not so? ---Joel
From: Jim Thompson on 13 Jan 2010 11:58 On Wed, 13 Jan 2010 08:40:14 -0800, "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote: >Did that design make it through fab, Jim, or did the company start imploding >first? It was fabbed at Polarfab. The company began disintegration while debugging the digital was in progress. > >I thought that combined bipolar/CMOS ("BiFET?") processes were generally >considered too exotic/unnecessary-due-to-performance-improvements-in-CMOS >these days? Not so? > >---Joel Not so for analog. Try making a low noise amplifier with only CMOS. Try making a TVG that is stable/predictable over temperature. For quality, bipolar ROCKS ;-) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
From: Joel Koltner on 13 Jan 2010 12:39 Hi Jim, "Jim Thompson" <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> wrote in message news:i8urk55o1qkbqi6fl4cpsep2j917i0esae(a)4ax.com... > It was fabbed at Polarfab. Looks like a nice place. Have you done any ICs through TriQuint? They seem to be making an effort to be quite inexpensive (relatively speaking) for low quantities, and advertise some nice RF processes. > For quality, bipolar ROCKS ;-) Yeah, so I've been learning (e.g., oscillators with BJTs easily beat the phase noise of those with FETs) -- when I went to school, BJTs was all but forgotten, unfortuntaely. (And of course toobs were just a historical footnote!) It seems as though all of your bits *could* have been bipolar, with just the digital goodies CMOS? Or were you trying to be power efficient or somesuch and hence used CMOS whenever you could too? ---Joel
From: Jim Thompson on 13 Jan 2010 12:46
On Wed, 13 Jan 2010 09:39:26 -0800, "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote: >Hi Jim, > >"Jim Thompson" <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> wrote >in message news:i8urk55o1qkbqi6fl4cpsep2j917i0esae(a)4ax.com... >> It was fabbed at Polarfab. > >Looks like a nice place. Yep. Very high quality. > >Have you done any ICs through TriQuint? No. But I'll look into what they have to offer. >They seem to be making an effort to >be quite inexpensive (relatively speaking) for low quantities, and advertise >some nice RF processes. > >> For quality, bipolar ROCKS ;-) > >Yeah, so I've been learning (e.g., oscillators with BJTs easily beat the phase >noise of those with FETs) -- when I went to school, BJTs was all but >forgotten, unfortuntaely. (And of course toobs were just a historical >footnote!) I landed at MIT just at the switch from tooobs to bipolar transistors. > >It seems as though all of your bits *could* have been bipolar, with just the >digital goodies CMOS? CMOS current mirrors have no base current ;-) >Or were you trying to be power efficient or somesuch >and hence used CMOS whenever you could too? > >---Joel Yes. And you can't beat CMOS for analog switches. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |