jgpeiroAlternative TMUX1119
Now that the project has gained some audience I have the option of going to the community in search of solutions. So I'll tell you what happens to see if with everyone's help this problem can be unlocked.
After making the design, playing with the input stages and writing a bit of code, I was ready to test the two channels with the multiplexer. To my surprise he hadn't taken into account a parameter that limited (indirectly) the switching frequency between both channels, and if he couldn't switch fast, he couldn't use both channels at the same time without sacrificing BW or SPS.
Does anyone know of an alternative with a shorter switching time (t_tran)?
Preferable in the same package and pinout, but I'm not hopeful... a new PCB is needed anyway to fix other small flaws.
Datasheet:
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74LVC... seems a bit better, e.g. SN74LVC2G53.
Much faster probably - 74AUC..., e.g. SN74AUC2G53
I didn't analyze further if it's suitable and meets other requirements.
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Thank you, I dont know if I missed this part or was out of the stock when I designed the board. But I will consider the SN74LVC2G53 for next version. The AUC is even faster, but not voltage compatible.
So now I have three options:
74LVC1G53DP, suggested by ericrsong (via direct message)
ADG719, suggested by Benjamin
SN74LVC2G53 suggested by michal777
I will analyze and compare the parts on detail later. Now I will coment another issues as new project log.
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