TC1775 Datasheet, PDF (78/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
AD Converter Characteristics (cont’d)
T_A = -40 °C to +125 °C; V_SS = 0 V;
Parameter
Symbol
Overload coupling
factor¹⁰⁾
min.
k_A CC –
Input leakage current at I_OZ1 CC –
analog inputs
Input leakage current at I_OZ2 CC –
V_AGND and V_AREF
Switched cap. at the
positive reference
C_AREFSW –
CC
voltage input
Switched cap. at the
negative reference
voltage input
C_AGNDS
–
CC
Total cap. at the analog C_AINTOT –
voltage input
CC
Switched cap. at the
analog voltage input
C_AINSW
–
CC
ON resistance of the
R_AIN CC –
transmission gates in the
analog voltage path
Limit Values
typ. max.
–
1.0 × 10^-3
1.0 × 10^-4
–
±200
–
±500
15 20
15 20
12 15
–
10
–
0.7
Unit Test Conditions
–
see I_AOV1 and
–
I_AOV2
nA 0 V < V_IN < V_DDA1)
nA 0 V < V_IN < V_DDA1)
pF ¹¹⁾
pF ¹¹⁾
pF –
pF ¹²⁾
kΩ –
1) _{VDDAx = VDDA0 for A/D Converter ADC0 and VDDAx = VDDA1 for A/D Converter ADC1.}
2) _{VSSAx = VSSA0 for A/D Converter ADC0 and VSSAx = VSSA1 for A/D Converter ADC1.}
3) _{The value of VAREF is permitted to be within the range of VSSA - 0.05 V < VAREF < VDDM + 0.05 V. The value}
specified for the total unadjusted error (TUE) is not guaranteed while the V_AREF is out of the specified range.
4) _{The value of VAGND is permitted to be within the range of VSSA - 0.05 V < VAGND < VDDM + 0.05 V. The value}
specified for the total unadjusted error (TUE) is not guaranteed while the V_AGND is out of the specified range.
5) _{Definitions for CPS, STC, tBC and tDIV see Figure 25.}
6) _{TUE is tested at VAREF = 5 V, VAGND = 0 V and VDDM = 4.9 V.}
7) _{Analog overload conditions during operation occur if the voltage on the respective ADC pin exceeds the}
specified operating range (i.e. V_AOV > V_DDM + 0.5 V or V_AOV < V_SSM - 0.5 V) or a short circuit condition occurs
on the respective ADC pin. The absolute sum of input currents on all port pins must not exceed 10 mA at any
time. The supply voltage (V_DD, V_DDA0, V_DDA1 and V_SS, V_SSA0, V_SSA1) must remain within the specified limits.
Under short-circuit conditions the corresponding pin is not ready for use.
8) _{Applies for one analog input pin.}
9) _{Applies for two adjacent analog input pins.}
Data Sheet
74
V1.2, 2002-05