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f-alpha.net » Electronics » Digital Electronics » Multiplexer » Let's go... » Experiment 7 - ON Resistance

Experiment 7 - ON Resistance of the Bilateral Switch

If you measure the resistance of the bilateral, the closed switch has a resistance of about 80 Ω...!

Circuit diagram resistance measurement of the bilateral switch C-MOS 4066.

Circuit resistance measurement of the bilateral switch C-MOS 4066. (Enlarge)

The resistance is specified in data sheets as ON Resistance...

For the nearly identical component C-MOS 4016 you measure a ON Resistance of about 280 Ω...

Circuit diagram resistance measurement of the bilateral switch C-MOS 4016.

Circuit resistance measurement of the bilateral switch C-MOS 4016. (Enlarge)

For a switch, these are very high resistance values, and therefore the bilateral switch is not suitable to switch currents...

In the next experiment, you see how to switch analog voltages...

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