I ran across this History of OpAmps. Thought some might find it interesting. From tubes to ~ 1990.
Mikek
PS. I was looking for info on a Analog devices 118A that I have. Closest I came was the 118.
Page 30
The historical origins are rather short and incomplete. Fleming is mentioned, but NOT Cy Ellwell (the Baby Bird has no clue..).
I am quite sure that advances have been made since '91.
-- John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation
It's rigged to ADI. One of my early OpAmps, the MC1530/31 is still being sold, yet nary a mention in that "history". ...Jim Thompson
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| 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.
..and that comment relates to Cy Ellwell HOW?
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