ADG1206
Production
The ADG1206 and ADG1207 are monolithic iCMOS® analog
multiplexers comprising sixteen single channels and eight
differential channels, respectively. The...
Datasheet
ADG1206 on Analog.com
AD588
Production
The AD588 represents a major advance in state-of-the-art monolithic voltage references. Low initial error and low temperature drift give the AD588 absolute...
Datasheet
AD588 on Analog.com
iam using ADG1206 multiplexer in my design which routes the analog signal to the ADC based on the address selection.
AD588 reference output is also given as one input to the multiplexer for monitoring through ADC.
it is found that whenever the multiplexer samples or switches to route the reference output to ADC through the multiplexer a spike is getting generated at the input of the multiplexer.
I tried to isolate the reference output which is connected to the multiplexer thro a voltage follower.
By doing that the spike is seen at the output of the voltage follower which infers that the spike is being generated by the switching transients of the multiplexer.
When i disconnect the multiplexer input from the input circuitry and monitor the disconnected multiplexer input on a oscilloscope , a switching noise spikes of positive and negative voltage levels is seen.
How to avoid the switching transients during the switching of this multiplexer.
kindly suggest
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