Freescale Semiconductor MC9S08PA32, Технические данные инструкция

Страница: 21 / 35

6.3.1 ADC characteristics
Table 11. 5 V 12-bit ADC operating conditions
Characteri
stic
Conditions Symb Min Typ
1
Max Unit Comment
Supply
voltage
Absolute V
DDA
2.7 — 5.5 V —
Delta to V
DD
(V
DD
-V
DDAD
)
Δ
V
DDA
-100 0 +100 mV
Ground
voltage
Delta to V
SS
(V
SS
-V
SSA
)
1 Δ
V
SSA
-100 0 +100 mV
Input
voltage
V
ADIN
V
REFL
— V
REFH
V
Input
capacitance
C
ADIN
— 4.5 5.5 pF
Input
resistance
R
ADIN
— 3 5 kΩ —
Analog
source
resistance
12-bit mode
• f
ADCK
> 4 MHz
• f
ADCK
< 4 MHz
R
AS
—
—
—
—
2
5
kΩ External to
MCU
10-bit mode
• f
ADCK
> 4 MHz
• f
ADCK
< 4 MHz
—
—
—
—
5
10
8-bit mode
(all valid f
ADCK
)
— — 10
ADC
conversion
clock
frequency
High speed (ADLPC=0) f
ADCK
0.4 — 8.0 MHz —
Low power (ADLPC=1) 0.4 — 4.0
1. Typical values assume V
DDA
= 5.0 V, Temp = 25°C, f
ADCK
=1.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
1. DC potential difference.
Peripheral operating requirements and behaviors
MC9S08PA60 Series Data Sheet, Rev. 1, 10/9/2012.
Freescale Semiconductor, Inc. 21