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参数资料
| 型号： | AD7150BRMZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/28页 |
| 文件大小： | 0K |
| 描述： | IC CAP CONV 2CH ULT LP 10MSOP |
| 设计资源： | Using AD7150 for Proximity Sensing Appls (CN0095) |
| 特色产品： | AD715x Series Capacitance-to-Digital Converters & Evaluation Board |
| 标准包装： | 50 |
| 类型： | 电容数字转换器 |
| 输入类型： | 电压 |
| 输出类型： | 数字 |
| 接口： | 2 线串口 |
| 电流 - 电源： | 120µA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 产品目录页面： | 781 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7150EBZ-ND - BOARD EVAL FOR AD7150 |
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AD7150
Rev. 0 | Page 13 of 28
AUTOCAPDAC ADJUSTMENT
In adaptive threshold mode, the part can dynamically adjust the
CAPDAC to keep the CDC in an optimal operating capacitive
range. When the AutoDAC function is enabled, the CAPDAC
value is automatically incremented when the data average
exceeds three-fourths of the CDC full range, and the CAPDAC
value is decremented when the data average goes below one-
fourth of the CDC full range. The AutoDAC increment or
decrement step depends on the selected CDC capacitive input
range. See the Setup Registers section.
POWER-DOWN TIMER
In power sensitive applications, the AD7150 can be set to
automatically enter power-down mode after a programmed
period of time in which the outputs have not been activated.
The AD7150 can be then returned to a normal operational
mode either via the serial interface or by the power supply
off/on sequence.
POWER SUPPLY MONITOR
When the AD7150 VDD power supply voltage drops below a
defined level needed for correct CDC operation, the on-chip
power supply monitor stops the adaptive threshold logic and
holds it in reset. After the VDD reaches the required level, the
threshold logic is released, and the data average is reset to the
value of the first conversion finished at the correct power supply
voltage.
This feature prevents the adaptive threshold from being set
incorrectly after a very slow rise of the VDD voltage or from
being corrupted by accidental drops in the VDD voltage.
The other AD7150 functions continue working below the
power supply monitor threshold, down to approximately
1.0V..1.8V, the exact level depending on the manufacturing
process variation. In the region of the low VDD voltage, the part is
still accessible via the serial interface and continues conversion.
However, the conversion results may be incorrect and,
therefore, the data should not be considered valid if the part
operates below the power supply monitor threshold.
The status of the power supply monitor can be determined by
reading the PwrDown bit in the AD7150 status register.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7150BRMZ-REEL | 功能描述:IC CAP CONV 2CH ULT LP 10MSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| AD7151 | 制造商:AD 制造商全称:Analog Devices 功能描述:Ultra-Low Power, 1-Channel, Capacitance Converter for Proximity Sensing |
| AD7151BRMZ | 功能描述:IC CAP CONV 1CH ULT LP 10MSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| AD7151BRMZ-REEL | 功能描述:IC CAP CONV 1CH ULT LP 10MSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
| AD7152 | 制造商:AD 制造商全称:Analog Devices 功能描述:12-Bit Capacitance-to-Digital Converter |
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