st10f272z2 STMicroelectronics, st10f272z2 Datasheet - Page 146

• Manufacturer Part Number: st10f272z2
• Description: 16-bit Mcu With 256 Kbyte Flash Memory And 20 Kbyte Ram
• Manufacturer: STMicroelectronics

Electrical characteristics
25.7
Table 68.
146/189
Analog Reference voltage 1)
Analog Ground voltage
Analog Input voltage 2)
Reference supply current
Sample time
Conversion time
Differential Non Linearity
Integral Non Linearity
Offset Error
Total unadjusted error
Coupling Factor between inputs 3) 7)
Input Pin Capacitance
Sampling Capacitance
Analog Switch Resistance
6)
A/D converter characteristics
A/D converter characteristics
V
V
1. V
2. V
3. Not 100% tested, guaranteed by design characterization.
4. During the sample time the input capacitance C
5. This parameter includes the sample time t
6. DNL, INL, OFS and TUE are tested at V
Parameter
DD
SS
main V
maintain the V
setting bit ADOFF in ADCON register.
these cases will be 0x000
internal resistance of the analog source must allow the capacitance to reach its final voltage level within t
After the end of the sample time t
result.
Values for the sample clock t
programming.
the result register with the conversion result. Values for the conversion clock t
and can be taken from next
characterization for all other voltages within the defined voltage range.
AREF
AIN
≤ V
= 5 V ± 10%, V
may exceed V
AGND
6)
6)
3) 8)
3) 8)
can be tied to ground when A/D Converter is not in use: an extra consumption (around 200
DD
6)
is added due to internal analogue circuitry not completely turned off: so, it is suggested to
3) 8)
≤ V
AREF
SS
AGND
at V
SS
+ 0.2 V
DD
= 0 V, T
or V
H
V
V
V
I
t
t
DNL CC
INL CC
OFS CC
TUE CC
K
C
C
C
R
R
AREF
S
C
level even when not in use, and eventually switch off the A/D Converter circuitry
AREF
AGND
AIN
P1
P2
S
SW
AD
or 0x3FF
Symbol
Table
S
AREF
depends on programming and can be taken from
SR
SR
SR
CC
CC
CC
CC
CC
CC
CC
CC
CC
S
A
69.
, changes of the analog input voltage have no effect on the conversion
up to the absolute maximum ratings. However, the conversion result in
= –40 to +125 °C, 4.5 V ≤ V
H
, respectively.
AREF
4.5
V
V
–
–
1
3
–1
–1.5
–1.5
–2.0
–5.0
–7.0
–
–
–
–
–
–
–
S
SS
AGND
, the time for determining the digital result and the time to load
min.
= 5.0 V, V
AIN
Limit Values
can be charged/discharged by the external source. The
AGND
V
V
V
5
1
–
–
+1
+1.5
+1.5
+2.0
+5.0
+7.0
10
3
4
6
3.5
600
1600
1300
DD
SS
AREF
–6
max.
= 0V, V
+ 0.2
DD
AREF
V
V
V
mA
µA
µs
µs
LSB
LSB
LSB
LSB
–
pF
pF
pF
W
W
= 5.0 V. It is guaranteed by design
Unit
CC
≤ V
Table 69: A/D converter
depend on programming
Running mode
Power Down mode
4)
5)
No overload
No overload
No overload
Port5
Port1 - No overload
Port1 - Overload
On both Port5 and Port1
Port5
Port1
Port5
Port1
DD
,
Test Condition
ST10F272Z2
µ
3)
A) on
3)
3)
S
.