ADC analog input capacitance

Started by "hyu...@yahoo.com [lpc2000]" August 1, 2014
Hello everyone I have a doubt that puzzles me on LPC1769 datasheet about ADC

It says that there is a maximum analog input capacitance for the ADC (Cia). Is this the internal capacitance of the adc or the maximum capacitance i can connect to the adc input??
In http://www.nxp.com/documents/data_sheet/LPC1769_68_67_66_65_64_63.pdf
In figure 29 (page 69) the capacitance (Cia) is connected outside the microcontroller block.
So is the figure wrong???
Thanks in advance for your help
Hyu

An Engineer's Guide to the LPC2100 Series

It's usually taken to mean the parasitic capacitance looking into the input.

Leon
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On Friday, August 1, 2014 2:25 PM, "l...@btinternet.com [lpc2000]" wrote:

 
It's usually taken to mean the parasitic capacitance looking into the input.

Leon
[Non-text portions of this message have been removed]


Posted by: krishnamurthy babu