参数资料
型号: ADUC847BSZ8-3
厂商: Analog Devices Inc
文件页数: 39/108页
文件大小: 0K
描述: IC MCU FLASH W/24BIT ADC 52MQFP
标准包装: 1
系列: MicroConverter® ADuC8xx
核心处理器: 8052
芯体尺寸: 8-位
速度: 12.58MHz
连通性: I²C,SPI,UART/USART
外围设备: POR,PSM,PWM,温度传感器,WDT
输入/输出数: 34
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
EEPROM 大小: 4K x 8
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
数据转换器: A/D 10x24b; D/A 1x12b,2x16b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 52-QFP
包装: 托盘
配用: EVAL-ADUC847QSZ-ND - KIT DEV QUICK START FOR ADUC847
ADuC845/ADuC847/ADuC848
Data Sheet
Rev. C | Page 36 of 108
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 × 2N)/(1.024 × VREF)
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 × 2N)/(VREF)
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 = 2N1[(AIN × GAIN)/(1.024 ×VREF) + 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 = 2N1 [(AIN/VREF) + 1]
EXCITATION CURRENTS
The ADuC845/ADuC847/ADuC848 contain two matched,
software-configurable 200 A current sources. Both source
current from AVDD, which is directed to either or both of the
IEXC1 (Pin 11 whose alternate functions are P1.6/AIN7) or
IEXC2 (Pin 12, whose alternate functions are P1.7/AIN8) 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 A can be sourced individually from
both pins or can be combined to give a 400 A source from one
or the other of the outputs. These sources can be used to excite
external resistive bridge or RTD sensors (see Figure 71).
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.
相关PDF资料
PDF描述
VE-B4T-IW CONVERTER MOD DC/DC 6.5V 100W
AT91SAM9261B-CU-999 IC MCU ARM9 ULT LOW PWR 217LFBGA
VE-B4R-IX CONVERTER MOD DC/DC 7.5V 75W
ATMEGA128-16MUR MCU AVR 128KB FLASH 16MHZ 64QFN
VE-B4R-IW CONVERTER MOD DC/DC 7.5V 100W
相关代理商/技术参数
参数描述
ADUC847BSZ8-5 功能描述:IC MCU FLASH W/24BIT ADC 52MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA,UART/USART 外围设备:欠压检测/复位,LED,POR,PWM,WDT 输入/输出数:16 程序存储器容量:4KB(4K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC(0.295",7.50mm 宽) 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND
ADUC848 制造商:AD 制造商全称:Analog Devices 功能描述:MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC848BCP32-3 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays
ADUC848BCP32-5 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays
ADUC848BCP62-3 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 3.3V 56LFCSP - Bulk