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參數(shù)資料
| 型號： | MSM65522-XXXRS |
| 廠商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PDIP42 |
| 封裝： | 0.600 INCH, 2.54 MM PITCH, PLASTIC, DIP-42 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大小： | 212K |
| 代理商： | MSM65522-XXXRS |
17/22
Semiconductor
MSM65522/65P522
A/D Converter Characteristics
(VDD=4.5 to 5.5V/2.7 to 4.5V, GND=0V, Ta=-40 to +85°C)
Parameter
Symbol
Condition
Min.
Max.
Unit
Resolution
n
—
bit
Absolute Error
EL
+1.5/+2
Differential Linearity Error
ED
±0.5/±1
Zero Point Error
EZS
+1.5/+2
Full Scale Error
EFS
–1.5/–2
Crosstalk
ECT
±0.5/±1
Analog input source impedance
RI5kW
Typ.
8
—
Conversion time *
tCONV
—
16/32
—
–1.5/–2
See the recommended circuit (Fig. 3).
See the measuring circuit (Fig. 4).
fOSC=10 MHz / 5 MHz
LSB
m
s/CH
*
14.8/2.96ms/CH for the one time conversion follows setting the GO bit.
Definitions of Terms
(1)
Resolution
The minimum distinguishable analog value. For 8 bits, 28=256, i.e. (VRH–VRL) ÷ 256.
(2)
Linearity Error
The variance between the ideal conversion characteristics as an 8-bit A/D converter and
actual conversion characteristics (does not include quantatized error).
The ideal conversion characteristics refer to steps of the voltage between VRH and VRL
into 256 intervals.
(3)
Differential Linearity Error
Indicates the smoothness of the conversion. The width of analog input voltage
corresponding to the change by one bit of digital output is 1 LSB = (VRH-VRL) ÷ 256
ideally. The variance between this ideal bit size and bit size at arbitrary point in the
conversion range.
(4)
Zero Scale Error
The variance between the ideal conversion characteristics at the switching point of digital
outputs "000H to 001H" and actual conversion characteristics.
(5)
Full Scale Error
The variance between the ideal conversion characteristics at the switching point of digital
outputs "0FEH to 0FFH" and actual conversion characteristics.
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