AD7190: How can we combine several ADC on one bus?

Document created by analog-archivist Employee on Feb 23, 2016
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How can we combine several AD7190 on one bus? i e. how can we make an incoming
interrupt for the uC, when one of several ADC's has  data to read from?

 

If you use several ADC's on the same bus, normally you use the /CS line to
select one over the other....and this will disable the Dout/ RDY signals.

(Chip Select is an active low logic input used to select the ADC. CS can be
used to select the ADC in systems with more than one device on the serial bus
or as a frame synchronization signal in communicating with the device. CS can
be hardwired low, allowing the ADC to operate in 3-wire mode with SCLK, DIN,
and DOUT used to interface with the device).

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