XC161CJ_02 Datasheet, PDF (60/78 Pages) Infineon Technologies AG – 16-Bi t Single-Chip Microcontroller Preliminary

Preliminary
4.6
A/D Converter Characteristics
XC161
Derivatives
Electrical Parameters
Table 13
A/D Converter Characteristics
(Operating Conditions apply)
Parameter
Analog reference supply
Symbol
Limit Values
min.
max.
V_AREF
4.5
SR
V_DDP
+ 0.1
Unit Test
Condition
V
1)
Analog reference ground
Analog input voltage range
Basic clock frequency
Conversion time⁴⁾
Calibration time after reset
Total unadjusted error
Total capacitance
of an analog input
Switched capacitance
of an analog input
Resistance of
the analog input path
Total capacitance
of the reference input
Switched capacitance
of the reference input
Resistance of
the reference input path
V_AGND V_SS - 0.1
SR
V_AIN
f_BC
t_C10
SR V_AGND
0.5
–
CC
t_C8
–
CC
t_CAL CC 484
TUE CC –
C_AINT
–
CC
C_AINS
–
CC
R_AIN
–
CC
C_AREFT –
CC
C_AREFS –
CC
R_AREF
–
CC
V_SS + 0.1 V
V_AREF
20
V
2)
MHz ³⁾
48×t_BC +
t_S+2×t_SYS
40×t_BC +
t_S+2×t_SYS
11,696
±2
15
–
–
t_BC
LSB
pF
10-bit conv.
t_SYS = 1 / f_CPU
8-bit conv.
t_SYS = 1 / f_CPU
5)
1)
6)
10
pF ⁶⁾
2
kΩ ⁶⁾
20
pF ⁶⁾
15
pF ⁶⁾
1
kΩ ⁶⁾
1) _{TUE is tested at VAREF = VDDP + 0.1 V, VAGND = 0 V. It is guaranteed by design for all other voltages within}
the defined voltage range.
If the analog reference supply voltage drops below 4.5 V (i.e. V_AREF ≥ 4.0 V) or exceeds the power supply
voltage by up to 0.2 V (i.e. V_AREF = V_DDP + 0.2 V) the maximum TUE is increased to ±3 LSB. This range is not
100% tested.
The specified TUE is guaranteed only if the absolute sum of input overload currents on Port 5 pins (see I_OV
specification) does not exceed 10 mA.
During the reset calibration sequence the maximum TUE may be ±4 LSB.
Data Sheet
56
V1.0, 2002-03