Using Analog Switches
Using Analog Switches
(OP)
Hi,
Has anyone switched between two circuits using an analog switch before? I have 2 serial outputs: one with .6V and another with 3.25V, where I want to allow a user to switch between the two outputs as they wish. Is there a slick way of doing this that anyone knows??
Thanks,
swb1
Has anyone switched between two circuits using an analog switch before? I have 2 serial outputs: one with .6V and another with 3.25V, where I want to allow a user to switch between the two outputs as they wish. Is there a slick way of doing this that anyone knows??
Thanks,
swb1





RE: Using Analog Switches
Gunnar Englund
www.gke.org
RE: Using Analog Switches
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Using Analog Switches
Gunnar Englund
www.gke.org
RE: Using Analog Switches
When you say 3.25V do you mean a 0V to +3.25V logic? That is very standard.
When you say 0.6V do you mean 0V to +0.6V? That is highly non-standard. Or was it a typo?
RE: Using Analog Switches
When I say 0.6V, I mean +/- 0.6VDC with a +/- 0.15VDC threshold
Also the data runs at 10MHz.
Thanks,
swb1
RE: Using Analog Switches
RE: Using Analog Switches
If you had told us that the signal is bipolar, you would have saved a lot of confusion. Now, you are creating even more confusion by introducing a "threshold" in the signal. A signal cannot have a threshold. What is it really that you want to do?
Gunnar Englund
www.gke.org
RE: Using Analog Switches
Plesae read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>
RE: Using Analog Switches
RE: Using Analog Switches
I have sucessfully used 4051, 4052, and 4053s above 10MHz. Some 74HC40xx can go to 90-100MHz (Philips, TI, ST).
Swing range depends on your voltage rails you run it on. Use a +/-5V supply, and you can go +/-4.5V with the signals.
-Bill
CE Designer Forum
www.cedesigner.com
RE: Using Analog Switches
Thanks,
swb1
RE: Using Analog Switches
RE: Using Analog Switches
you might look at the maxim IC max328/329 it may be a little slow for 10 MHz but a related device may be the ticket. godd luck.
xray
RE: Using Analog Switches