TLE9877QXA20_15 Datasheet, PDF (111/122 Pages) Infineon Technologies AG – Microcontroller with LIN and BLDC MOSFET Driver for Automotive Applications

TLE9877QXA20
Electrical Characteristics
Table 38 A/D Converter Characteristics (cont’d)
V_S = 5.5 V to 28 V, T_j = -40 °C to +150 °C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Parameter
Symbol
Min.
Values
Typ.
Max.
Unit Note /
Number
Test Condition
Total capacitance
C_AREFT
–
–
15
pF
5)9)
of the reference input
P_9.2.17
Switched capacitance C_AREFS –
–
7
pF
5)9)
of the reference input
P_9.2.18
Resistance of
R_AREF
–
–
2
kΩ
5)9)
the reference input path
P_9.2.19
1) Not subject to production test, specified by design.
2) V_AIN may exceed V_AGND or V_AREFx up to the absolute maximum ratings. However, the conversion result in these cases will
be 0000_H or 03FF_H, respectively.
3) The limit values for f_ADCI must not be exceeded when selecting the peripheral frequency and the prescaler setting.
4) This parameter includes the sample time (also the additional sample time specified by STC), the time to determine the
digital result and the time to load the result register with the conversion result.
5) The broken wire detection delay against V_AGND is measured in numbers of consecutive precharge cycles at a conversion
rate of not more than 500 µs.
6) The total unadjusted error TUE is the maximum deviation from the ideal ADC transfer curve, not the sum of individual
errors.
All error specifications are based on measurement methods standardized by IEEE 1241.2000.
7) The specified TUE is valid only if the absolute sum of input overload currents (see I_OV specification) does not exceed
10 mA, and if V_AREF and V_AGND remain stable during the measurement time.
8) The total unadjusted error TUE is the maximum deviation from the ideal ADC transfer curve, not the sum of individual
errors.
All error specifications are based on measurement methods standardized by IEEE 1241.2000.
9) These parameter values cover the complete operating range. Under relaxed operating conditions (temperature, supply
voltage) typical values can be used for calculation. 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.
29.10 Reserved
Data Sheet
111
Rev. 1.0, 2015-04-30