Here's that strange LT Spice thing:
It's a simple simulation of an equivalent-time sampling oscilloscope. It runs *very* slow, hence the screen shots.
What's strange is the crud at the s/h output. The time stretch effect here is only a million to 1, so I shouldn't think we'd be getting floating-point errors yet.
-- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
Even the ideal T-line model will reflect the obscene L1/C1 termination.
Aside: I need a PECL diff-in/diff-out amplifier... off-the-shelf. Recommendations? ...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| 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.
The test waveform at C1 looks fine, viewed over a 20 ns sim. Playing with DT and solvers and stuff doesn't help.
How fast? The ADCMP parts work great. ADCMP561, 567, 582. That last one is a screamer, 8 GHz, 37 ps edges, $16.
-- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
70MHz input, mV, want to bring it up to at least 144mV P-P ...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| 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.
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.