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Multiplexer/Demultiplexer | Cypress Semiconductor

Multiplexer/Demultiplexer

Summary: 3 Replies, Latest post by odissey1 on 12 Sep 2016 12:23 PM PDT
Verified Answers: 0
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jasonkahana_1482786's picture
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26 posts

Is there any way to connect two analog multiplexers together directly?  I'm trying to build a conductivity meter that inverts the drive and sense terminals, and creator is complaining that the analog muxes are connected without another component.

 

 

user_1377889's picture
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10411 posts

Look at Amux_1 input number 1. This signal is connected to the other mux Amux_3 input number 0. So this signal is connected to two (2) inputs but no signal drives it.

 

Bob

jasonkahana_1482786's picture
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26 posts

Are the Amuxes asymmetric?  In principle, the Pin5 current would drive input 1back into Amux3 and then to the buffer and SAR.  I guess I'm looking at this conceptually as a bidirectional attachment.

user_342122993's picture
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750 posts

jasonkahana,
Analog Mux inputs can only connect to input terminals, nothing else. Use modulators internally. To invert polarity use ADC_DelSig in differential mode + modulation Input.

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