It's rare that I ever get to even acknowledge circuits that I've designed.
Finally one of my clients, Akustica, has gone public in the 04.27.06 edition of "electronic design"
See pp 36-38, "Breaking A New Sound Barrier: It's a MIC-On-A-Chip"
I did the analog amplifier circuit design, including charge-pump for the MEMS, and bandgap revisions.
Paul Spitalny, of Cascade Linear, Inc., Kirkland, Washington, did the sigma-delta output version.
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
For most folks who don't wear a suit to work, doing a good job is like peeing your pants when you're wearing dark trousers: It gives you a warm feeling--but nobody else is aware. 8-)
Congrats.
Thanks, Richard! I didn't even think to check their website.
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Thanks! So true. I think I first saw that "dark trousers" joke in the late '70's... right about the time I reached the age of BPH :-(
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
I cross-posted your message over on rec.audio.pro and rec.audio.tech. Not that they will necessarily find a product like that of interest for high-quality recording (because of the high distorion %), but because it may well mark the end of the electret condenser microphone capusule commodity item as we know it today. Some people will think that is a good thing, and others won't. :-)
That distortion spec is at +110 dB SPL. Why they spec'd it there, I have no idea. But when you're doing circuit designs for physicists you never know what you're going to see ;-)
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
At $3.97 each, it has a ways to go.
John
The article was poorly written. It has substantial amplification built-in.
Besides, hearing aids follow into the "boutique" business ;-)
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
At these sound levels, the case and the mounting may as well resonate and play a role for the distortion number. Add a few Y5R caps and you're there too.
Rene
Hello Jim,
Tell me about it. Designing for medical folks can leads to similar surprises but it is fun.
Does the sensor part work similar to a single-chip pressure sensor?
Regards, Joerg
I think so. I haven't done pressure sensors, but this is simply a voltage-biased capacitor (thus the "pump").
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Hello Jim,
Life is a little easier with applications where DC is not so important. We had a lot of work cut out with that pressure sensor since it had to have static state precision. Mostly process control, not so much design.
Regards, Joerg
Yeah, but we physicists usually don't insist on making you feel like whale droppings on the bottom of the ocean just because you aren't an M.D....
Cheers,
Phil Hobbs
Physics gadgets are usually more fun than the wet stuff.
Physicists can be brutal to each other, but they're usually (not always, believe me!) kind to engineers.
John
I did my Bachelor's Thesis on blood flow measurement as a joint MIT/Harvard Med School venture.
I wrote an operating manual for the doctors and had my wife proof read it.
Her comment, "Seems awfully juvenile to me".
My response, "It has to be that way so the doctors can understand 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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...
Do your ears hurt when you go through doorways?
[snip]
Eh? You lost me there.
...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 |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
-- LOL, your head is so swelled your ears hit the jambs when you walk through a doorway...
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.