參數(shù)資料
型號: ML670100
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: OKIs High-Performance CMOS 32-Bit Single Chip Microcontroller
中文描述: 歐凱思高性能CMOS 32位單片微控制器
文件頁數(shù): 27/27頁
文件大小: 109K
代理商: ML670100
Semiconductor
ML 670100
/ 27
A-to-D Converter Characteristics
(Condition: V
DD
=AV
DD
=V
REF
=2.7V to 3.6V, GND=AGND=0V,Ta=-40 to +85
°
C )
Item
Symbol
Condition
Resolution
n
Linearity error
E
L
Refer to the following
Differential
linearity error
Analog input source impedance
Zero scale error
E
ZS
R
I
is equal or less than 5K
Full scale error
E
FS
Conversion time
t
CONV
f
C
=25MHz
Min.
-
-3.0
-1.0
Typ.
-
-
-
Max.
8
+3.0
+1.0
Unit
bit
LSB
LSB
E
D
recommended circuit.
-
-
-
-
-
+2.0
-2.0
-
LSB
LSB
μ
S/CH
10.68
Definitions of terms
Resolution
The minimum distinguishable analog value.
For 8 bits, 2
8
=256, i.e.(VREF-AGND)/256.
Variance between the ideal conversion characteristics as an 8-bit A-to-D
converter and actual conversion characteristics (does not include
quantatized error).
Indicates the smoothness of the conversion. The width of analog input
voltage corresponding to the change by one bit of digital output is
1LSB=(VREF-AGND)/256 ideally. The variance between this ideal bit
size and bit size at arbitrary point in the conversion range.
Variance between the ideal conversion characteristics at the switching
point of digital output ”0x00” - ”0x01” and actual conversion
characteristics.
Variance between the ideal conversion characteristics at the switching
point of digital output ”0xFE” - ”0xFF” and actual conversion
characteristics.
Linearity error
Differential
linearity error
Zero scale error
Full scale error
R
I
(Analog input source impedance) is equal or less than 5K
0.1
μ
F
0.1
μ
F
3.3V
Analog
input
0.1
μ
F
0.1
μ
F
47
μ
F
+
R
I
+
-
ML670100
V
RE
F
V
DD
AI[7:0]
GND
AGND
AV
DD
47
μ
F
+
3.3V
0V
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