參數(shù)資料
型號: XC888CLM
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 103/119頁
文件大小: 895K
代理商: XC888CLM
XC886/888CLM
Electrical Parameters
Data Sheet
Prelimary
99
V0.1, 2006-02
analog voltage
inputs
Input resistance of
the reference input
Input resistance of
the selected analog
channel
4.2.3
The values in the table below are given for an analog power supply between 4.5 V to
5.5 V. The ADC can be used with an analog power supply down to 3 V. But in this case,
the analog parameters may show a reduced performance. All ground pins (V
SS
) must be
externally connected to one single star point in the system. The voltage difference
between the ground pins must not exceed 200mV.
ADC Characteristics
Table 39
ADC Characteristics (Operating Conditions apply;
V
DDP
= 5V Range)
Symbol
Limit Values
Parameter
Unit
Test Conditions/
Remarks
min.
V
AGND
+ 1
V
SS
- 0.05
typ .
V
DDP
max.
V
DDP
+ 0.05
V
AREF
- 1
V
AREF
V
Analog reference
voltage
Analog reference
ground
Analog input
voltage range
ADC clocks
V
AREF
SR
V
V
AGND
SR
V
SS
V
V
AIN
SR
V
AGND
f
ADC
f
ADCI
24
25.8
10
MHz
MHz
module clock
internal analog clock
See
Figure 35
Sample time
t
S
CC (2 + INPCR0.STC)
×
t
ADCI
CC See
Section 4.2.3.1
TUE
1)
CC –
C
AREFSW
CC
μs
Conversion time
Total unadjusted
error
t
C
μs
LSB
LSB
pF
10
±
1
±
2
20
8-bit conversion.
2)
10-bit conversion.
2)3)
Switched
capacitance at the
reference voltage
input
Switched
capacitance at the
C
AINSW
CC
5
7
pF
2)4)
R
AREF
CC –
1
2
k
2)
R
AIN
CC –
1
1.5
k
2)
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