参数资料
型号: MB95F284HWQN-G-SNE1
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, MICROCONTROLLER, PQCC32
封装: 5 X 5 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, PLASTIC, QFN-32
文件页数: 65/92页
文件大小: 3535K
代理商: MB95F284HWQN-G-SNE1
MB95260H/270H/280H Series
68
DS07–12627–5E
(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.
Comparator
Analog input
During sampling: ON
Note: The values are reference values.
~
4.5 V < VCC < 5.5 V : R
1.95 k
Ω (Max), C 17 pF (Max)
~
<
4.0 V
VCC < 4.5 V : R
8.98 k
Ω (Max), C 17 pF (Max)
R
C
Analog input equivalent circuit
[External impedance = 0 k
Ω to 100 kΩ]
Exter
n
a
limped
a
nce
[k
Ω
]
Exter
n
a
limped
a
nce
[k
Ω
]
Minimum sampling time [
μs]
Minimum sampling time [
μs]
[External impedance = 0 k
Ω to 20 kΩ]
100
90
80
70
60
50
40
30
20
10
0
20
18
16
14
12
10
8
6
4
2
0
0246
8
10
12
14
1
02
3
4
(VCC > 4.5 V)
(VCC > 4.0 V)
(VCC > 4.5 V)
(VCC > 4.0 V)
Relationship between external impedance and minimum sampling time
相关PDF资料
PDF描述
MB95F284KWQN-G-SNE1 8-BIT, FLASH, MICROCONTROLLER, PQCC32
MC9S12HZ256VPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MSC8144TVT800B 133 MHz, OTHER DSP, PBGA783
MC9S08SG4CSC 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDSO8
MPC92429EIR2 400 MHz, OTHER CLOCK GENERATOR, PQCC28
相关代理商/技术参数
参数描述
MB95F284KPF-G-SNE1 功能描述:IC MCU 8BIT 20KB FLASH 16SOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:8FX MB95280H 标准包装:250 系列:LPC11Uxx 核心处理器:ARM? Cortex?-M0 芯体尺寸:32-位 速度:50MHz 连通性:I²C,Microwire,SPI,SSI,SSP,UART/USART,USB 外围设备:欠压检测/复位,POR,WDT 输入/输出数:40 程序存储器容量:96KB(96K x 8) 程序存储器类型:闪存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):1.8 V ~ 3.6 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:48-LQFP 包装:托盘 其它名称:568-9587
MB95F314EPMC-G-SNE2 功能描述:IC MCU 8BIT 20KB FLASH 80LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:8FX MB95310L 产品培训模块:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 标准包装:90 系列:AVR® XMEGA 核心处理器:AVR 芯体尺寸:8/16-位 速度:32MHz 连通性:I²C,IrDA,SPI,UART/USART 外围设备:欠压检测/复位,DMA,POR,PWM,WDT 输入/输出数:50 程序存储器容量:192KB(96K x 16) 程序存储器类型:闪存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 电压 - 电源 (Vcc/Vdd):1.6 V ~ 3.6 V 数据转换器:A/D 16x12b; D/A 2x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:64-TQFP 包装:托盘 配用:ATSTK600-RC14-ND - STK600 SOCKET/ADAPTER 64TQFPATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM
MB95F316EPMC-G-SNE2 功能描述:IC MCU 8BIT 36KB FLASH 80LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:8FX MB95310L 标准包装:60 系列:PSOC® 3 CY8C38xx 核心处理器:8051 芯体尺寸:8-位 速度:67MHz 连通性:EBI/EMI,I²C,LIN,SPI,UART/USART 外围设备:电容感应,DMA,LCD,POR,PWM,WDT 输入/输出数:25 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:2K x 8 RAM 容量:8K x 8 电压 - 电源 (Vcc/Vdd):1.71 V ~ 5.5 V 数据转换器:A/D 2x20b,D/A 4x8b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:48-VFQFN 裸露焊盘 包装:托盘
MB95F318EPMC-G-SNE2 功能描述:IC MCU 8BIT 60KB FLASH 80LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:8FX MB95310L 标准包装:60 系列:PSOC® 3 CY8C38xx 核心处理器:8051 芯体尺寸:8-位 速度:67MHz 连通性:EBI/EMI,I²C,LIN,SPI,UART/USART 外围设备:电容感应,DMA,LCD,POR,PWM,WDT 输入/输出数:25 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:2K x 8 RAM 容量:8K x 8 电压 - 电源 (Vcc/Vdd):1.71 V ~ 5.5 V 数据转换器:A/D 2x20b,D/A 4x8b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:48-VFQFN 裸露焊盘 包装:托盘
MB95F318PMC-ES-SNE2 制造商:FUJITSU 功能描述:8-bit Microcontroller