参数资料
型号: MB90F897PMT
元件分类: 微控制器/微处理器
英文描述: MICROCONTROLLER, PQFP48
封装: 7 X 7 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 70/84页
文件大小: 1773K
代理商: MB90F897PMT
MB90895 Series
72
DS07-13731-4E
7.
Notes on A/D Converter Section
<About the external impedance of the analog input and its sampling time>
A/D converter with sample and hold circuit. If the external impedance is too high to keep sufficient sampling
time, the analog voltage charged to the internal sample and hold capacitor is insufficient, adversely affecting
A/D conversion precision.
(Continued)
R
C
Analog input circuit model
Analog input
During sampling : ON
Comparator
Note : The values are reference values.
MB90F897/F897S
R
C
4.5 V
≤ AVCC ≤ 5.5 V
2.4 k
(Max)
36.4 pF (Max)
4.0 V
≤ AVCC < 4.5 V
16.4 k
(Max)
36.4 pF (Max)
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