参数资料
| 型号： | AD7890BRZ-10REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/28页 |
| 文件大小： | 0K |
| 描述： | IC DAS 12BIT 8CH 24-SOIC |
| 产品培训模块： | Power Line Monitoring |
| 标准包装： | 1,000 |
| 类型： | 数据采集系统（DAS） |
| 分辨率（位）： | 12 b |
| 采样率（每秒）： | 117k |
| 数据接口： | 串行 |
| 电压电源： | 单电源 |
| 电源电压： | 5V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
AD7890
Rev. C | Page 19 of 28
SIMPLIFYING THE INTERFACE
To minimize the number of interconnect lines to the AD7890,
the user can connect the RFS and TFS lines of the AD7890
together and read and write from the part simultaneously. In
this case, new control register data should be provided on the
DATA IN line selecting the input channel and possibly
providing a conversion start command while the part provides
the result from the conversion just completed on the
DATA OUT line.
In the self-clocking mode, this means that the part provides all
the signals for the serial interface. It does require that the
microprocessor has the data to be written to the control register
available in its output register when the part brings the TFS line
low. In the external clocking mode, it means that the user only
has to supply a single frame synchronization signal to control
both the read and write operations.
Care must be taken with this scheme that the read operation is
completed before the next conversion starts, if the user wants to
obtain optimum performance from the part. In the case of the
software conversion start, the conversion command is written
to the control register on the sixth serial clock edge. However,
the read operation continues for another 10 serial clock cycles.
To avoid reading during the sampling instant or during
conversion, the user should ensure that the internal pulse width
is sufficiently long (by choosing CEXT) so that the read operation
is completed before the next conversion sequence begins.
Failure to do this results in significantly degraded performance
from the part, both in terms of signal-to-noise ratio and dc
parameters. In the case of a hardware conversion start, the user
should ensure that the delay between the sixth falling edge of
the serial clock in the write operation and the next rising edge
of CONVST is greater than the internal pulse width.
相关PDF资料 |
PDF描述 |
|---|---|
| VI-B1J-IU-F2 | CONVERTER MOD DC/DC 36V 200W |
| AD7890BRZ-2REEL | IC DAS 12BIT 8CH 24-SOIC |
| VE-B1L-IU-F3 | CONVERTER MOD DC/DC 28V 200W |
| VE-B1L-IU-F2 | CONVERTER MOD DC/DC 28V 200W |
| VE-B1L-IU-F1 | CONVERTER MOD DC/DC 28V 200W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7890BRZ-2 | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD7890BRZ-2REEL | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD7890BRZ-4 | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD7890BRZ-4REEL | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD7890SQ-10 | 功能描述:模数转换器 - ADC LC2MOS 8CH 12B Data Acquisition System RoHS:否 制造商:Analog Devices 通道数量: 结构: 转换速率: 分辨率: 输入类型: 信噪比: 接口类型: 工作电源电压: 最大工作温度: 安装风格: 封装 / 箱体: |
发布紧急采购，3分钟左右您将得到回复。