C505_9708 SIEMENS [Siemens Semiconductor Group], C505_9708 Datasheet - Page 208

• Manufacturer Part Number: C505_9708
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

10.3 A/D Converter Characteristics
V
4
Parameter
Analog input voltage
Sample time
Conversion cycle time
Total unadjusted error
Internal resistance of
reference voltage source
Internal resistance of
analog source
ADC input capacitance
Notes see next page.
Clock calculation table :
Clock Prescaler
Ratio
Further timing conditions : t
Semiconductor Group
CC
V V
32
16
8
4
= 5 V
AREF
10%, – 15%;
V
CC
ADCL1, 0
0.1
1
1
0
0
V
;
V
V
1
0
1
0
SS
SS
t
ADC
IN
= 0 V
Symbol
V
t
t
T
R
R
C
–
S
ADCC
UE
AIN
AREF
ASRC
= 1 / f
AIN
0.1 V
t
32 x t
16 x t
ADC
8 x t
4 x t
min = 800 ns
OSC
IN
IN
IN
IN
V
min.
V
0.2
–
–
–
–
–
–
AGND
AGND
= t
Limit Values
t
64 x t
32 x t
16 x t
T
T
T
T
S
CLP
8 x t
A
A
A
A
-
= 0 to 70 C
= – 40 to 85 C
= – 40 to 110 C
= – 40 to 125 C
10-4
V
ss
IN
IN
IN
IN
max.
V
0.2
64 x
32 x
16 x
320 x
160 x
t
- 1
t
- 1
50
ADC
S
8 x
80 x
40 x
+ 0.2 V
AREF
2
/ 500
/ 500
t
320 x t
160 x t
t
t
t
t
IN
IN
IN
IN
ADCC
+
80 x t
40 x t
t
t
t
t
IN
IN
IN
IN
Unit
V
ns
ns
LSB
k
k
pF
IN
IN
IN
IN
Test Condition
1)
Prescaler
Prescaler
Prescaler
Prescaler
Prescaler
Prescaler
Prescaler
Prescaler
V
t
t
6)
ADC
S
Device Specifications
SS
for the SAB-C505
for the SAF-C505
for the SAH-C505
for the SAK-C505
in [ns]
+0.5V V
in [ns]
2) 6)
5) 6)
32
16
8
4
32
16
8
4
C505 / C505C
AIN
2)
3)
V
1997-08-01
CC
-0.5V
4)