參數(shù)資料
型號: ST7LITE10F1B6
英文描述: ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI
中文描述: ST7LITE1 - 8單電壓閃存EEPROM的MEMORY.DATA位MCU。 ADC的。 4定時器。的SPI
文件頁數(shù): 102/122頁
文件大小: 1716K
代理商: ST7LITE10F1B6
ST7LITE0, ST7SUPERLITE
102/122
1
13.11 8-BIT ADC CHARACTERISTICS
T
A
= -40°C to 125°C, unless otherwise specified
Figure 86. R
AIN
max. vs f
ADC
with C
AIN
=0pF
3)
Figure 87. Recommended C
AIN
/R
AIN
values
4)
Figure 88. Typical Application with ADC
Notes:
1. 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.
2. The stabilization time of the AD converter is masked by the first tLOAD. The first conversion after the enable is then
always valid.
3.C
represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the pad ca-
pacitance (3pF). A high C
PARASITIC
value will downgrade conversion accuracy. To remedy this, f
ADC
should be reduced.
4. This graph shows that depending on the input signal variation (f
), C
can be increased for stabilization and to allow
the use of a larger serial resistor (R
AIN)
. It is valid for all f
ADC
frequencies
4MHz.
Symbol
f
ADC
V
AIN
R
AIN
C
ADC
t
STAB
t
CONV
t
SAMPLE
t
HOLD
Parameter
Conditions
Min
Typ
Max
4
V
DD
10
1)
Unit
MHz
V
k
pF
ADC clock frequency
Conversion voltage range
External input resistor
Internal sample and hold capacitor
Stabilization time after ADC enable
Conversion time (t
SAMPLE
+t
HOLD
)
Sample capacitor loading time
Hold conversion time
V
SS
V
DD
=5V
3
f
CPU
=8MHz, f
ADC
=4MHz
0
2)
3
μ
s
4
8
1/f
ADC
0
5
10
15
20
25
30
35
40
45
0
10
30
70
C
PARASITIC
(pF)
M
A
4 MHz
2 MHz
1 MHz
0.1
1
10
100
1000
0.01
0.1
1
10
f
AIN
(KHz)
M
A
Cain 10 nF
Cain 22 nF
Cain 47 nF
AINx
ST72XXX
V
DD
I
L
±1
μ
A
V
T
0.6V
V
T
0.6V
C
ADC
3pF
V
AIN
R
AIN
8-Bit A/D
Conversion
2k
(
max
)
C
AIN
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ST7LITE19F1M6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI