数据搜索系统,热门电子元器件搜索 |
|
AD7150 数据表(PDF) 1 Page - Analog Devices |
|
AD7150 数据表(HTML) 1 Page - Analog Devices |
1 / 28 page Ultra-Low Power, 2-Channel, Capacitance Converter for Proximity Sensing AD7150 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesfor itsuse,norfor anyinfringements ofpatents orother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved. FEATURES Ultra-low power 2.7 V to 3.6 V, 100 μA Response time: 10 ms Adaptive environmental compensation 2 independent capacitance input channels Sensor capacitance (CSENS) 0 pF up to 13 pF Sensitivity to 1 fF EMC tested 2 modes of operation Standalone with fixed settings Interfaced to a microcontroller for user-defined settings 2 proximity detection output flags 2-wire serial interface (I2C compatible) Operating temperature −40°C to +85°C 10-lead MSOP package APPLICATIONS Proximity sensing Contactless switching Position detection Level detection GENERAL DESCRIPTION The AD7150 delivers a complete signal processing solution for capacitive proximity sensors, featuring an ultra-low power converter with fast response time. The AD7151 is a single- channel, lower power alternative to the AD7150. The AD7150 uses Analog Devices, Inc., capacitance-to-digital converter (CDC) technology, which combines features important for interfacing to real sensors, such as high input sensitivity and high tolerance of both input parasitic ground capacitance and leakage current. The integrated adaptive threshold algorithm compensates for any variations in the sensor capacitance due to environmental factors like humidity and temperature or due to changes in the dielectric material over time. By default, the AD7150 operates in standalone mode using the fixed power-up settings and indicates detection on two digital outputs. Alternatively, the AD7150 can be interfaced to a microcontroller via the serial interface, the internal registers can be programmed with user-defined settings, and the data and status can be read from the part. The AD7150 operates with a 2.7 V to 3.6 V power supply. It is specified over the temperature range of −40°C to +85°C. FUNCTIONAL BLOCK DIAGRAM DIGITAL FILTER SERIAL INTERFACE CIN1 CSENS1 CSENS2 EXC1 Σ-Δ CDC CIN2 EXC2 MUX EXCITATION THRESHOLD THRESHOLD SCL VDD GND AD7150 SDA OUT1 OUT2 Figure 1. |
类似零件编号 - AD7150_15 |
|
类似说明 - AD7150_15 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |