參數(shù)資料
型號： MB95F584HWQN-G-JNE1
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： MICROCONTROLLER, PQCC32
封裝： 5 X 5 MM, 0.80 MM HEIGHT, PLASTIC, M19, QFN-32
文件頁數(shù)： 62/84頁
文件大?。?/td> 3929K
代理商： MB95F584HWQN-G-JNE1
MB95560H/570H/580H Series
DS702-00010-1v0-E
65
(2) Notes on Using the A/D Converter
External impedance of analog input and its sampling time
The A/D converter has a sample and hold circuit. If the external impedance is too high to keep sufficient
sampling time, the analog voltage charged to the capacitor of the internal sample and hold circuit is
insufficient, adversely affecting A/D conversion precision. Therefore, to satisfy the A/D conversion precision
standard, considering the relationship between the external impedance and minimum sampling time, either
adjust the register value and operating frequency or decrease the external impedance so that the sampling
time is longer than the minimum value. In addition, if sufficient sampling time cannot be secured, connect
a capacitor of about 0.1 F to the analog input pin.
A/D conversion error
As |VCC
VSS| decreases, the A/D conversion error increases proportionately.
Note: The values are reference values.
4.5 V
≤ VCC ≤ 5.5 V
2.7 V
≤ VCC < 5.5 V
3.3 k
Ω (Max)
15.7 k
Ω (Max)
14.89 pF (Max)
VCC
R
C
14.89 pF (Max)
Comparator
Analog input
During sampling: ON
R
C
Analog input equivalent circuit
[External impedance = 0 k
Ω to 100 kΩ]
Extern
a
limped
a
nce
[k
Ω
]
Minimum sampling time [
μs]
Minimum sampling time with VCC
> 2.7 V
Minimum sampling time with VCC
> 2.4 V
0246
8
10
12
100000
80000
60000
40000
20000
0
[External impedance = 0 k
Ω to 20 kΩ]
Extern
a
limped
a
nce
[k
Ω
]
Minimum sampling time [
μs]
0
0.5
1
1.5
2
2.5
20000
15000
10000
5000
0
Relationship between external impedance and minimum sampling time
相關(guān)PDF資料
PDF描述
MB95F583HPF-G-JNE2 MICROCONTROLLER, PDSO16
MB95F562KPF-G-JNE2 MICROCONTROLLER, PDSO20
MB95F583HWQN-G-JNE1 MICROCONTROLLER, PQCC32
MB95F572HPF-G-JNE2 MICROCONTROLLER, PDSO8
MB95R203AP-G-SH-JNE2 8-BIT, FLASH, 10 MHz, MICROCONTROLLER, PDIP24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB95F636HP-ES-SH-SNE2 制造商:FUJITSU 功能描述:8-bit MCU
MB95F636HPMC-ES-SNE2 制造商:FUJITSU 功能描述:8-bit FX series microcontroller
MB95F636HWQN-ES-SNE1 制造商:FUJITSU 功能描述:8-bit MCU
MB95F636KP-ES-SH-SNE2 制造商:FUJITSU 功能描述:8-bit FX series microcontroller
MB95F636KPMC-ES-SNE2 制造商:FUJITSU 功能描述:8-bit FX series microcontroller
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*