Some discrete design questions

No, normally we choose parts from a manufacturer's list, using their part datasheets as a guide. These don't specify W or L.

We buy parts in standard catalog values, such as 4.7 ohms, etc.

We use bipolar, or MOS and CMOS, as is best appropriate and available. But again, boki, we don't use biopolar. :-)

Hello Win,

Some do:

Regards, Joerg

"Frozen organic"? I didn't know they could freeze s*it ;-)

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

Geometry size is not typically stated for discrete devices. Select a device by the parameters your require directly. Are you thinking of Vgsth for example ?

Yes.

You can design in CMOS if you like although most discrete circuits I know of are typically mainly or all bipolar. Choose the technology that you

Graham

I really think you ***need*** a copy of Win's pre-blog epic

martin

Never been in a pasture in the winter, huh? ;-)

Cheers! Rich