參數(shù)資料
型號(hào): ST72124J2T
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
中文描述: 8位單電壓閃存,ADC和16位定時(shí)器,SPI和脊髓損傷界面微控制器
文件頁數(shù): 138/153頁
文件大小: 1533K
代理商: ST72124J2T
ST72334J/N, ST72314J/N, ST72124J
138/153
16.12 8-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
DD
, f
OSC
, and T
A
unless otherwise specified.
Figure 98. Typical Application with ADC
Notes:
1.
Unless otherwise specified, typical data are based on T
A
=25°C and V
DD
-V
SS
=5V. They are given only as design guide-
lines and are not tested.
2. When V
DDA
and V
SSA
pins are not available on the pinout, the ADC refer to V
DD
and V
SS
.
3. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10k
). Data
based on characterization results, not tested in production.
4.
The stabilization time of the AD converter is masked by the first t
LOAD
. The first conversion after the enable is then
always valid.
Symbol
f
ADC
V
AIN
R
AIN
C
ADC
t
STAB
Parameter
Conditions
Min
Typ
1)
Max
4
V
DDA
10
3)
Unit
MHz
V
k
pF
ADC clock frequency
Conversion range voltage
2)
External input resistor
Internal sample and hold capacitor
Stabilization time after ADC enable
Conversion time (Sample+Hold)
- Sample capacitor loading time
- Hold conversion time
V
SSA
6
f
CPU
=8MHz, f
ADC
=4MHz
0
4)
3
4
8
μ
s
t
ADC
1/f
ADC
AINx
ST72XXX
C
IO
~2pF
V
DD
I
L
±1
μ
A
V
T
0.6V
V
T
0.6V
V
AIN
R
AIN
V
DDA
V
SSA
0.1
μ
F
V
DD
ADC
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