Zakładka z wyszukiwarką danych komponentów |
|
AD7151 Arkusz danych(PDF) 1 Page - Analog Devices |
|
AD7151 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 29 page Ultra-Low Power, 1-Channel, Capacitance Converter for Proximity Sensing AD7151 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, 70 μA Response time: 10 ms Adaptive environmental compensation 1 capacitance input channel 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 Proximity detection output flag 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 AD7151 delivers a complete signal processing solution for capacitive proximity sensors, featuring an ultra-low power converter with fast response time. The AD7150 is a 2-channel alternative to the AD7151. The AD7151 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 AD7151 operates in standalone mode using the fixed power-up settings and indicates detection on a digital output. Alternatively, the AD7151 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 AD7151 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 CIN CSENS EXC Σ-Δ CDC EXCITATION THRESHOLD SCL VDD GND AD7151 SDA OUT Figure 1. |
Podobny numer części - AD7151_17 |
|
Podobny opis - AD7151_17 |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów 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 |