参数资料
型号: ADUC848BSZ8-3
厂商: Analog Devices Inc
文件页数: 39/108页
文件大小: 0K
描述: IC MCU FLASH W/16BIT ADC 52MQFP
标准包装: 96
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 10x16b; 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
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
ADUC7020BCPZ62I-RL IC MCU 12BIT 1MSPS I2C 40-LFCSP
ATXMEGA256A3B-MHR IC MCU 8BIT 256KB FLASH 64VQFN
ATXMEGA256A3B-AUR IC MCU 8BIT 256KB FLASH 64TQFP
VE-B33-IX-F2 CONVERTER MOD DC/DC 24V 75W
VE-B33-IW-F4 CONVERTER MOD DC/DC 24V 100W
相关代理商/技术参数
参数描述
ADUC848BSZ8-5 功能描述:IC MCU FLASH W/16BIT 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: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
AD-UCFS-JRN-SPRD 功能描述:PRD LIC UCFS JOURNAL CCES 1 PRD RoHS:否 类别:编程器,开发系统 >> 软件 系列:* 标准包装:1 系列:ISE® 设计套件 类型:订阅 适用于相关产品:Xilinx FPGAs 其它名称:Q4986209T1081384
AD-UCFS-MJRN-SP 功能描述:PRD LIC UCFS JOURNAL MAIN 1 PRD RoHS:否 类别:编程器,开发系统 >> 软件 系列:* 标准包装:1 系列:ISE® 设计套件 类型:订阅 适用于相关产品:Xilinx FPGAs 其它名称:Q4986209T1081384
AD-UCFS-MNT-SP 功能描述:PRD LIC UCFS CORE MAIN 1 PRD RoHS:否 类别:编程器,开发系统 >> 软件 系列:* 标准包装:1 系列:ISE® 设计套件 类型:订阅 适用于相关产品:Xilinx FPGAs 其它名称:Q4986209T1081384
AD-UCFS-SPRD 功能描述:PRD LIC UCFS CORE CCES 1 PROD RoHS:否 类别:编程器,开发系统 >> 软件 系列:* 标准包装:1 系列:ISE® 设计套件 类型:订阅 适用于相关产品:Xilinx FPGAs 其它名称:Q4986209T1081384