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ADC source impedance for Hercules MCUs

Posted: 08 Dec 2011     Print Version  Bookmark and Share

Keywords:Unbuffered  ratiometric  analogue-to-digital converters  source impedance 

Unbuffered multiplexed ratiometric analogue-to-digital converters (ADC) have strict requirements on driving source impedance that are not always obvious. Here's an application report that addresses the trade-offs between source impedance and sample rate. It includes both 10bit and 12bit examples using the TMS470 processors and the Hercules ARM Safety MCUs (TMS470M, TMS570 and RM4x families) in the GS30, GS40, and GS60 process nodes (a.k.a. F05/C05, F035/C035, and F021, respectively).

View the PDF document for more information.

Originally published by Texas Instruments at as "ADC Source Impedance for Hercules ARM Safety MCUs".

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