SAF-C515-L24M SIEMENS [Siemens Semiconductor Group], SAF-C515-L24M Datasheet - Page 44

• Manufacturer Part Number: SAF-C515-L24M
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

A/D Converter Characteristics
V
V
Parameter
Analog input voltage
A/D converter input clock
Sample time
Conversion cycle time
Total unadjusted error
Internal resistance of
reference voltage source
Internal resistance of
analog source
ADC input capacitance
Notes:
1) V
2) During the sample time the input capacitance C
3) This parameter includes the sample time t
4) T
5) During the conversion the ADC’s capacitance must be repeatedly charged or discharged. The internal
6) Not 100% tested, but guaranteed by design characterization.
Semiconductor Group
CC
CC
these cases will be 00
internal resistance of the analog source must allow the capacitance to reach their final voltage level within t
After the end of the sample time t
result.
t
other voltages within the defined voltage range.
If an overload condition occurs on maximum 2 not selected analog input pins and the absolute sum of input
overload currents on all analog input pins does not exceed 10 mA, an additional conversion error of 1/2 LSB
is permissible.
resistance of the reference source must allow the capacitance to reach their final voltage level within the
indicated time. The maximum internal resistance results from the programmed conversion timing.
ADC
= 5 V
– 0.25 V
UE
AIN
is tested at V
may exceed V
is always 8 x t
10%, – 15%;
V
AREF
AREF
IN
AGND
.
H
V
= 5.0 V, V
CC
or FF
V
or V
SS
0.25
H
Symbol
V
t
t
t
T
R
R
C
= 0 V
S
ADCC
IN
AREF
UE
, respectively.
AIN
AREF
ASRC
AIN
AGND
S
V
, changes of the analog input voltage have no effect on the conversion
;
up to the absolute maximum ratings. However, the conversion result in
V
= 0 V, V
SS
min.
V
0.2
–
–
–
–
–
–
–
S
AGND
and the conversion time t
– 0.2 V
Limit Values
T
T
T
A
A
A
AIN
CC
-
= 0 to 70 C
= – 40 to 85 C
= – 40 to 110 C
44
= 4.9 V. It is guaranteed by design characterization for all
can be charged/discharged by the external source. The
max.
V
0.2
2 x
16 x
80 x
8 x
- 1
t
45
S
AREF
V
1
/ 500 - 1
AGND
t
t
IN
CLCL
t
t
IN
IN
+
/500
V
ss
Unit
V
ns
ns
ns
LSB
k
k
pF
+ 0.2 V;
C
. The values for the conversion clock
for the SAB-C515-1RM
for the SAF-C515-1RM
for the SAH-C515-1RM
Test Condition
1)
2)
3)
V
V
t
t
6)
IN
S
IntAREF
IntAGND
in [ns]
V
in [ns]
IntAREF
=
=
V
V
5) 6)
2) 6)
AREF
AGND
V
IntAGND
= V
= V
1997-08-01
CC
SS
1 V;
4)
C515
S
.