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參數資料
型號: ADUC848BS62-5
廠商: ANALOG DEVICES INC
元件分類: 微控制器/微處理器
英文描述: MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
中文描述: 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, PQFP52
封裝: 14 X 14 MM, PLASTIC, MO-112-AC-1, MQFP-52
文件頁數: 36/108頁
文件大小: 1109K
代理商: ADUC848BS62-5
ADuC845/ADuC847/ADuC848
DATA OUTPUT CODING
When the primary ADC is configured for unipolar operation,
the output coding is natural (straight) binary with a zero differ-
ential input voltage resulting in a code of 000...000, a midscale
voltage resulting in a code of 100...000, and a full-scale voltage
resulting in a code of 111...111. The output code for any analog
input voltage on the main ADC can be represented as follows:
Code
– (
AIN
×
GAIN
× 2
N
) / (1.024 ×
V
REF
)
Rev. A | Page 36 of 108
where:
AIN
is the analog input voltage.
GAIN
is the PGA gain setting, that is, 1 on the 2.56 V range and
128 on the 20 mV range, and
N
= 24 (16 on the ADuC848).
The output code for any analog input voltage on the auxiliary
ADC can be represented as follows:
Code
= (
AIN
× 2
N
) / (
V
REF
)
with the same definitions as used for the primary ADC above.
When the primary ADC is configured for bipolar operation, the
coding is offset binary with negative full-scale voltage resulting
in a code of 000...000, a zero differential voltage resulting in a
code of 800…000, and a positive full-scale voltage resulting in a
code of 111...111. The output from the primary ADC for any
analog input voltage can be represented as follows:
Code
= 2
N
1
[(
AIN
×
GAIN
) / (1.024 ×
V
REF
) + 1]
where:
AIN
is the analog input voltage.
GAIN
is the PGA gain, that is, 1 on the ±2.56 V range and
128 on the ±20 mV range.
N
= 24 (16 on the ADuC848).
The output from the auxiliary ADC in bipolar mode can be
represented as follows:
Code
= 2
N
1
[(
AIN
/
V
REF
) + 1]
EXCITATION CURRENTS
The ADuC845/ADuC847/ADuC848 contain two matched,
software-configurable 200 μA current sources. Both source
current from AV
DD
, which is directed to either or both of the
IEXC1 (Pin 11 whose alternate functions are P1.6/AIN6) or
IEXC2 (Pin 12, whose alternate functions are P1.7/AIN7) pins
on the device. These currents are controlled via the lower four
bits in the ICON register (Table 30). These bits not only enable
the current sources but also allow the configuration of the
currents such that 200 μA can be sourced individually from
both pins or can be combined to give a 400 μA source from one
or the other of the outputs. These sources can be used to excite
external resistive bridge or RTD sensors (see Figure 70).
ADC POWER-ON
The ADC typically takes 0.5 ms to power up from an initial
start-up sequence or following a power-down event.
相關PDF資料
PDF描述
ADUC848BS8-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC848BS8-5 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP8-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC847BCP8-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
相關代理商/技術參數
參數描述
ADUC848BS8-3 制造商:Analog Devices 功能描述:
ADUC848BS8-5 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Analog Devices 功能描述:IC MICROCONTROLLER
ADUC848BSZ32-3 功能描述:IC MCU FLASH W/16BIT ADC 52MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA,UART/USART 外圍設備:欠壓檢測/復位,LED,POR,PWM,WDT 輸入/輸出數:16 程序存儲器容量:4KB(4K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC848BSZ32-5 功能描述:IC MCU FLASH W/16BIT ADC 52MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA,UART/USART 外圍設備:欠壓檢測/復位,LED,POR,PWM,WDT 輸入/輸出數:16 程序存儲器容量:4KB(4K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC848BSZ62-3 功能描述:IC MCU FLASH W/16BIT ADC 52MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA,UART/USART 外圍設備:欠壓檢測/復位,LED,POR,PWM,WDT 輸入/輸出數:16 程序存儲器容量:4KB(4K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
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