参数资料
型号: MB96F326RWBPMC-GSE2
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 56 MHz, RISC MICROCONTROLLER, PQFP80
封装: 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LFQFP-80
文件页数: 7/120页
文件大小: 1285K
代理商: MB96F326RWBPMC-GSE2
PRELIMINARY
MB96320 Series
FME-MB96320 rev 5
104
2008-2-4
To satisfy the A/D conversion precision standard, the relationship between the external impedance and minimum
sampling time must be considered and then either the resistor value and operating frequency must be adjusted
or the external impedance must be decreased so that the sampling time (Tsamp) is longer than the minimum
value. Usually, this value is set to 7
τ, where τ = RC. If the external input resistance (Rext) connected to the analog
input is included, the sampling time is expressed as follows:
Tsamp [min] = 7
× (Rext + 2.6k) × C for 4.5 ≤ AVcc ≤ 5.5
Tsamp [min] = 7
× (Rext + 12.1k) × C for 3.0 ≤ AVcc ≤ 4.5
If the sampling time cannot be sufcient, connect a capacitor of about 0.1
F to the analog input pin.
About the error
The accuracy gets worse as |AVRH - AVRL| becomes smaller.
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