參數(shù)資料
型號: MB91F133PMT2
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP144
封裝: PLASTIC, LQFP-144
文件頁數(shù): 6/123頁
文件大小: 1331K
代理商: MB91F133PMT2
MB91133/MB91F133
103
Definition of A/D Converter Terms
Resolution :
Analog changes that can be identified by A/D converter
Straight-line tolerance :
Difference between the straight line linking the zero transition point (00 0000 0000
←→ 00 0000 0001) to the
full-scale transition point (11 1111 1110
←→ 11 1111 1111) and actual conversion characteristics.
Differential straight-line tolerance :
Difference compared to the ideal input voltage value required to change the output code 1 LSB
Total tolerance :
Indicates the difference between the actual and theoretical values and includes zero transition tolerance, full-
scale transition tolerance, and straight-line tolerance.
(Continued)
3FF
3FE
3FD
004
003
002
001
AVSS
AVRH
Analog input
0.5 LSB
{1 LSB ( N 1 ) + 0.5 LSB}
1.5 LSB
Ideal characteristics
Actual conversion
characteristics
Actual conversion
characteristics
Digital
output
VNT
(Actual
measured value)
Total tolerance
Total tolerance of digital output N
=
VNT
{1 LSB × (N 1) + 0.5 LSB’}
1 LSB
1 LSB (Ideal value)
=
AVRH
AVSS
1024
[V]
VOT (Ideal value)
= AVSS + 0.5 LSB’
VNT : Voltage of digital output transferred from (N
+ 1) to N
[V]
VFST (Ideal value)
= AVRH 1.5 LSB’ [V]
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