XC2220U Datasheet, PDF (70/105 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2220U
XC2000 Family / Compact Line
Electrical Parameters
1) These parameter values cover the complete operating range. Under relaxed operating conditions
(temperature, supply voltage) typical values can be used for calculation.
2) The sum of DNL/INL/GAIN/OFF errors does not exceed the related TUE total unadjusted error.
3) If a reduced analog reference voltage between 1V and V_DDPB / 2 is used, then there are additional decrease
in the ADC speed and accuracy.
4) If the analog reference voltage range is below V_DDPB but still in the defined range of V_DDPB / 2 and V_DDPB is
used, then the ADC converter errors increase. If the reference voltage is reduced by the factor k (k<1), TUE,
DNL, INL, Gain and Offset errors increase also by the factor 1/k.
5) If the analog reference voltage is > V_DDPB, then the ADC converter errors increase.
6) TUE is based on 12-bit conversion.
7) TUE is tested at V_AREF = V_DDPB = 5.0 V, V_AGND = 0 V. It is verified by design for all other voltages within the
defined voltage range. The specified TUE is valid only if the absolute sum of input overload currents on analog
port pins (see I_OV specification) does not exceed 10 mA, and if V_AREF and V_AGND remain stable during the
measurement time.
Table 22 ADC Parameters for Lower Voltage Range
Parameter
Symbol
Values
Min. Typ. Max.
Input resistance of the
R_AIN CC −
selected analog channel
1.4 2.5
Input resistance of the
reference input
R_AREF
−
CC
1.0 2.0
Differential Non-Linearity
Error^2)3)4)5)
Gain Error^2)3)4)5)
Integral Non-
Linearity^2)3)4)5)
Offset Error^2)3)4)5)
Analog clock frequency
|EA_DNL| −
CC
|EA_GAIN| −
CC
|EA_INL| −
CC
|EA_OFF| −
CC
f_ADCI SR 2
2
2.5 5.5
3.0 8.0
2.5 7.5
2.0 5.5
−
16.7
−
12.1
Total Unadjusted Error³⁾⁴⁾ |TUE| −
CC
2.5 7.5
Unit Note /
Test Condition
kOh not subject to
m production test
1)
kOh not subject to
m production test
1)
LSB
LSB
LSB
LSB
MHz
MHz
LSB
Std. reference
input (V_AREF)
Alt. reference
input (CH0)
6)7)
Data Sheet
66
V1.2, 2012-07