XC228X Datasheet, PDF (87/110 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2287 / XC2286 / XC2285
XC2000 Family Derivatives
Preliminary
Electrical Parameters
4) This parameter includes the sample time (also the additional sample time specified by STC), the time for
determining the digital result and the time to load the result register with the conversion result.
Values for the basic clock t_ADCI depend on programming and can be taken from Table 16.
5) Not subject to production test - verified by design/characterization.
The given parameter values cover the complete operating range. Under relaxed operating conditions
(temperature, supply voltage) reduced values can be used for calculations. At room temperature and nominal
supply voltage the following typical values can be used:
C_AINTtyp = 12 pF, C_AINStyp = 5 pF, R_AINtyp = 1.0 kΩ, C_AREFTtyp = 15 pF, C_AREFStyp = 10 pF, R_AREFtyp = 1.0 kΩ.
V _AIN
R_Source
C _Ext
R_{AIN, On}
A/D Converter
C _AINT - C _AINS
C_AINS
Figure 14 Equivalent Circuitry for Analog Inputs
MCS05570
Data Sheet
85
V0.91, 2007-02
Draft Version