SAB80C166W Datasheet, PDF (48/67 Pages) Siemens Semiconductor Group – C16x-Family of High-Performance CMOS 16-Bit Microcontrollers

SAB 80C166W/83C166W
A/D Converter Characteristics
V_CC = 5 V ± 10 %; V_SS = 0 V
T_A = 0 to + 70 ˚C for SAB 83C166W-5M, SAB 80C166W/83C166W-M
T_A = – 40 to + 85 ˚C for SAB 83C166W-5M-T3, SAB 80C166W/83C166W-M-T3
T_A = – 40 to + 110 ˚C for SAB 83C166W-5M-T4, SAB 80C166W/83C166W-M-T4
4.0 V ≤ V_AREF ≤ V_CC + 0.1 V; V_SS – 0.1 V ≤ V_AGND ≤ V_SS + 0.2 V
Parameter
Analog input voltage range
Sample time
Conversion time
Total unadjusted error
Internal resistance of reference
voltage source
Internal resistance of analog
source
Symbol
Limit Values Unit
min.
max.
V_AIN SR V_AGND
t_S CC –
t_C CC –
TUE CC –
V_AREF
V
2 t_SC
10 t_CC +
t_S + 4TCL
±2
LSB
R_AREF CC –
R_ASRC CC –
t_CC / 250 kΩ
- 0.25
t_S / 500 kΩ
- 0.25
Test Condition
1)
2) 5)
3) 5)
V_AREF = V_CC
V_AGND = V_SS
t_CC in [ns] ⁴⁾
t_S in [ns] ⁴⁾
Notes
1) _{VAIN may exceed VAGND or VAREF up to the absolute maximum ratings. However, the conversion result in these}
cases will be X000_H or X3FF_H, respectively.
2) _{During the sample time the input capacitance CI can be charged/discharged by the external source. The}
internal resistance of the analog source must allow the capacitors to reach their final voltage level within t_S.
After the end of the sample time t_S, changes of the analog input voltage have no effect on the conversion result.
The value for the sample clock is t_SC = T_CL x 32.
3) _{This parameter includes the sample time tS, the time for determining the digital result and the time to load the}
result register with the conversion result.
The value for the conversion clock is t_CC = T_CL x 32.
4) _{During the conversion the ADC’s capacitance must be repeatedly charged or discharged. The internal}
resistance of the respective current source must allow the capacitors to reach their final voltage level within
the indicated time. The maximum internal resistance results from the CPU clock period.
5) _{This parameter depends on the ADC control logic. It is not a real maximum value, but rather a fixum.}
Semiconductor Group
48