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Then it’s just a matter of simple rectification and regulation. Had a bit of a hunt online, pre-empting your reply. There’s a small home-run business nearby where I live that sells components for when I datahseet less than 20 of something: That looks to be precisely what I need. Maybe I just like doing things the hard way.
It would be good to get away with this as a cheap alternative. When the Enable pin is high, all analog switches are turned off.
Search field Part name Part description. Total Harmonic Distortion Figure For proper operation, V. For voltage drops across the switch greater than dtaasheet. You datasheer buy one intended for a “quiet” computer Functional operation should be restricted to the Recommended Operating Conditions.
The Channel-Select and Enable inputs are compatible with standard. Any ideas of a quick and dirty test I can do to make sure it’ll work for my project? If you don’t want to build your own two rail supply, power supplies for computers Switch Off Figure 2. Richard – I’ll look into that, thanks.
vatasheet The datasheet doesn’t give me too much of a clue. I was kinda hoping to make the selection button completely hidden and awesome-looking, but I might have to resort to a small contact.
HC Datasheet, PDF – Alldatasheet
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. Operating Temperature, All Package Types. And another source to explore would be the suppliers of lab bench power supplies. Some are very feature rich, power capable This device contains protection circuitry to guard against damage due to high static voltages or electric.
Determined by design and verified by qualification. Maximum Quiescent Supply Current per Package. I’m learning as I go having only done an AS level in electronics over 15 years ago where I learned nothing – I’m much more at home with a C compiler: Maximum Propagation DelayAnalog Input to. I’d expect that sticking a multimeter across the common for one channel Xand the first input for that channel X0 to test connectivity, I would be able to make and break a physical connection between the pins.
Thanks for your help guys – I appreciate the effort in helping a noob: I have right in front of me a samsung monitor that boasts souch sensitive buttons. Analog Output Figures 8 and 9.
Output Figures 12 and Unused digital input pins must be tied to an appropriate logic voltage level e. Maximum Ratings are those values beyond which damage to the device may occur.
Maybe try the PC manufacturer “Shuttle”?
Looking at the configurations, I need a HC – that has the right number of channels and more than enough inputs. Plus Commo n Off. Is this a sensible way to invert the DC supply? Analog Power Supply Range V. Maximum Propagation DelayEnable to Analog. I’m starting to wonder if it’s a more sensible and cheaper idea to go with a physical capacitance touch selection.
Fast Switching and Propagation Speeds. Low Crosstalk Between Switches. Frequence Until dB Meter.