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In place of Current input ADC to FDC series(FDC2212)

Satoshi
Guru 19645 points
Other Parts Discussed in Thread: DDC232
Customer requested that 1ch current input ADC near the DDC232.
I think that Capacitance sensor can use it, please see attached below. 
Is it correct? If I have mistake, please let me know.
Block_diagram_0.pptx
 
【Customer spec】
・1ch input
・Input range：0～350nA
・Speed：80usec(12.5ksps)～125msec(800sps)
・24bit
 
Best regards,
Satoshi