DocID024995 Rev 4
89/104
STM32L100RC
96
Figure 23. ADC accuracy characteristics
Figure 24. Typical connection diagram using the ADC
1.
Table 56: Maximum source impedance RAIN max
for the value of R
AIN
ADC
.
2.
C
parasitic
represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the
pad capacitance (roughly 7
pF). A high C
parasitic
value will downgrade conversion accuracy. To remedy
this, f
ADC
should be reduced.
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