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MC9S08PT16 Datasheet, PDF (21/33 Pages) Freescale Semiconductor, Inc – MC9S08PT16 | |||
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Peripheral operating requirements and behaviors
6.3 Analog
6.3.1 ADC characteristics
Table 11. 5 V 12-bit ADC operating conditions
Characteri
stic
Supply
voltage
Ground
voltage
Input
voltage
Input
capacitance
Input
resistance
Analog
source
resistance
ADC
conversion
clock
frequency
Conditions
Absolute
Delta to VDD (VDD-VDDAD)
Delta to VSS (VSS-VSSA)2
12-bit mode
â¢
fADCK > 4 MHz
â¢
fADCK < 4 MHz
10-bit mode
â¢
fADCK > 4 MHz
â¢
fADCK < 4 MHz
8-bit mode
(all valid fADCK)
High speed (ADLPC=0)
Low power (ADLPC=1)
Symb
VDDA
ÎVDDA
ÎVSSA
VADIN
CADIN
RADIN
RAS
fADCK
Min
2.7
-100
-100
VREFL
â
â
â
â
â
â
â
0.4
0.4
Typ1
â
0
0
â
4.5
3
â
â
â
â
â
â
â
Max
5.5
+100
+100
VREFH
5.5
5
2
5
5
10
10
8.0
4.0
Unit
Comment
V
â
mV
mV
V
pF
kâ¦
â
kâ¦
External to
MCU
MHz
â
1. Typical values assume VDDA = 5.0 V, Temp = 25°C, fADCK=1.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
2. DC potential difference.
MC9S08PT16 Series Data Sheet, Rev. 1, 7/4/2012.
Freescale Semiconductor, Inc.
21
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