I know the main advantages of using CMOS ICs are to reduce power supply requirements and to provide a higher noise immunity. What I don't know is when CMOS ICs are not called for. What are the advantages of non-CMOS chips? Thank you.
west
Bipolar: Low noise amplification, high bandwidth, low offsets, precision...
But the best of both worlds is BiCMOS.
...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 | |
Bipolar ECL, or better yet SiGe, when you want to go faster. See the OnSemi Eclips Lite and GigaComm parts, or the Analog Devices comparators. 40 ps edges! TI has a 5 GHz opamp, maybe SiGe.
InGaAs when you want to go really fast. Hittite and W-J and such.
Bipolar for high voltage swings, too, like voltage regulators.
John
Er, second breakdown? MOSFETs..!?
Tim
-- Deep Fryer: A very philosophical monk. Website @
There aren't a lot of high-voltage cmos processes. Supertex has some display drivers. AT&T used to have a 350 volt linear cmos process (Apex used it) but I think it's gone.
There are those IR high-side mosfet drivers; I'm not sure how they work inside.
John
John Larkin snipped-for-privacy@highNOTlandTHIStechnologyPART.com posted to sci.electronics.design:
There are also some special functions like log amps, and multipliers that may not have a reasonable CMOS substitute.
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