0
\$\begingroup\$

I have been checking different supplier websites, and can't seem to find what I am looking for so I am wondering if it even exists or not.

I am looking for a 4x 2:1 MUX IC with 4 select lines. I am trying to create a design for remote control that doesn't require a microcontroller by daisy chaining 2:1's together as shown in the picture below. The digital inputs represent button presses on my RC. I have 8 buttons to work with on my transceiver module and by using two of the MUX's I am trying to get up to 16.

I looked into using 4:1's but I would be leaving one input line empty because I cannot use the case when SEL1 = 1 and SEL2 = 1 because I am daisy chaining them together.

If this isn't the best route to take, can you please share what you might do?

Simulation Example of what I am trying to do

\$\endgroup\$
1
  • \$\begingroup\$ MC140xx analog muxes; with ina/inb/out/select X 4, that's 16 pins; probably not; but a triple, yes. \$\endgroup\$ Commented May 14, 2019 at 16:44

1 Answer 1

1
\$\begingroup\$

ADG734, 4 x 1:2 switch with 4 control lines Available at Digikey.com

4 Circuit IC Switch 2:1, 4.5Ohm, 20-TSSOP

1.8 V to 5.5 V Single Supply

or 2.5 V Dual Supply

2.5 On Resistance

0.5 On Resistance Flatness

100 pA Leakage Currents

19 ns Switching Times

https://www.analog.com/media/en/technical-documentation/data-sheets/ADG733_734.pdf

MAX333 is another, less expensive choice, also at Digikey. Appears to need higher power supply (+/-5V, or 0/10V)

https://datasheets.maximintegrated.com/en/ds/MAX333.pdf

\$\endgroup\$
1
  • \$\begingroup\$ Thank you! I think I will give the ADG734 a try. \$\endgroup\$
    – jhandy
    Commented May 14, 2019 at 18:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.