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PCB layout, ADC circuit suggestions for LPC1100 and LPC1300

Posted: 03 Mar 2011 ?? ?Print Version ?Bookmark and Share

Keywords:LPC1100? LPC1300? ARM Cortex?

The LPC1100 is based on the ARM Cortex M0, and the LPC1300 family is based on the ARM Cortex M3 core. Both families include an 8 channel 10-bit successive approximation analog-to-digital converter (ADC) with a maximum conversion rate of 400kHz.

The ADCs of the LPC1100 and LPC1300 differ from other LPC devices in that they do not have an external Vref. This means that extra precautions have to be taken to minimize noise effects that can affect the conversion results.

The goal of this application note is to show how to develop a PCB that is optimized for the ADC on the LPC1100 and LPC1300 families.

View the PDF document for more information.





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