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ADM3051 Datasheet(PDF) 1 Page - Analog Devices |
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ADM3051 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page High Speed Industrial CAN Transceiver with Bus Protection for 24 V Systems Data Sheet ADM3051 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 ©2011 Analog Devices, Inc. All rights reserved. FEATURES Physical layer CAN transceiver 5 V operation on VCC Complies with ISO 11898 standard High speed data rates up to 1 Mbps Short-circuit protection on CANH and CANL against shorts to power/ground in 24 V systems Unpowered nodes do not disturb the bus Connect 110 or more nodes on the bus Slope control for reduced EMI Thermal shutdown protection Low current standby mode Industrial operating temperature range (−40°C to +125°C) Available in 8-lead SOIC package APPLICATIONS CAN data buses Industrial field networks DeviceNet applications CanOpen, CanKingdom FUNCTIONAL BLOCK DIAGRAM ADM3051 TxD RS RxD VREF VCC MODE THERMAL SHUTDOWN VOLTAGE REFERENCE D R CANH CANL GND Figure 1. GENERAL DESCRIPTION The ADM3051 is a controller area network (CAN) physical layer transceiver allowing a protocol layer CAN controller to access the physical layer bus. The ADM3051 complies with the ISO 11898 standard. It is capable of running at data rates up to 1 Mbps. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where the bus may be shorted to ground or power terminals in 24 V bus power systems. The part is fully specified over the industrial temperature range of −40°C to +125°C and is available in an 8-lead SOIC package. Three operating modes are available: high speed, slope control, and standby. Pin 8 (RS) is used to select the operating mode. The low current standby mode can be selected by applying a logic high to RS. The device can be set to operate with slope control to limit EMI by connecting RS with a resistor to ground to modify the rise and fall of slopes. This mode facilitates the use of unshielded cables. Alternatively, disabling slope control by connecting RS to ground allows high speed operation. Shielded cables or other measures to control EMI are necessary in this mode. |
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