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PSoC 5, 3 & 1

jakac_1482786
New Contributor II

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.

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Bob_Marlowe
Expert II

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

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jakac_1482786
New Contributor II

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.

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odissey1
Honored Contributor II
        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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