hal 2810 feb/2008 product information hal ? 2810 linear hall-effect sensor with lin bus the hal 2810 is a member of the micronas family hal 28xy of programmable linear hall-effect sensors. it features a hall-plate with spinning current offset compensation technique and a pre- cise temperature sensor which is used for temperature compensation of both the hall- sensors sensitivity and offset. the sensor provides a digital signal pro- cessing. this is of great benefit because analog offsets, temperature shifts, and mechanical stress do not degrade digital signals. the hal 2810 is designed as a lin slave according to the lin specification package rev. 2.0. all communications (program- ming, diagnostics, and measurement sig- nal transport) is realized by means of lin frames. major characteristics like magnetic field range, sensitivity, offset and the tempera- ture coefficients of sensitivity and offset can easily be adjusted to the magnetic circuit by programming the non-volatile memory. the hal 2810 is available in the very small leaded package to-92ut. features high precision linear hall-effect sensor spinning-current offset compensation built-in temperature sensor operating junction temperature range: ? 40 c 140 c customer-programmable temperature compensation of hall-sensitivity (2 nd order) and hall-offset (1 st order) overvoltage and reverse voltage protec- tion at all pins. magnetic characteristics extremely robust against mechanical stress digital signal processing high-precision low-pass filter with con- stant gain at the pass band and a high attenuation at the stop band. sample fre- quency adjustable to 27 hz and 54 hz. 12 bit resolution non-volatile eeprom with redundancy and lock function lin slave according to lin specification package rev. 2.0 supported lin baud rates: 10.4 kbps and 20 kbps integrated lin physical layering major applications due to the sensor?s versatile programming characteristics and low drifts, the hal 2810 is the optimal system solution for applica- tions such as: contactless potentiometers angular measurements (e.g. for fuel-level sensing) linear movement (e.g. seat track position) linear force or torque measurements
product information hal 2810 feb/2008 all information and data contained in this product information are without any commitment, are not to be consid- ered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. product or development sample availability and delivery are exclusively subject to our respective order confirmation form. by this publication, micronas gmbh does not assume responsibility for patent infringements or other rights of third parties which may result from its use. micronas gmbh ? hans-bunte-strasse 19 ? d-79108 freiburg (germany) ? p.o. box 840 ? d-79008 freiburg (germany) tel. +49-761-517-0 ? fax +49-761-517-2174 ? e-mail: docservice@micronas.com ? www.micronas.com no part of this publication may be reproduced, photo- copied, stored on a retrieval system, or transmitted without the express written consent of micronas gmbh. edition feb. 8, 2008; order no. pi000117-002en development tools as all communication is done by means of lin frames, any available lin tool chain can be used for configuration and program - ming of the hal 28xy. for engineering purposes, micronas offers an easy-to-use application kit: micronas programmer board (hal-apb v 1.3) labview tm programming software for windows ? 9x / 2000 / xp/vista labview tm vis serial port hal programmer board fig. 1: development tool setup system architecture the hal 2810 sensors are produced in a proven automotive submicron cmos tech- nology. the hal 2810 features a temperature-com- pensated hall plate with spinning-current offset compensation, an a/d converter for the hall-plate, an a/d converter for the tem- perature sensor, digital signal processing, a fully integrated lin interface including the physical layer, an eeprom memory with redundancy and lock function for the cali- bration data and the lin configuration, and protection devices on all pins. the hal 2810 is programmable by means of lin frames. no additional programming pin is needed. internally temperature oscillator switched a/d digital dio vsup gnd eeprom memory lock control stabilized supply and protection devices dependent bias protection devices hall plate converter signal processing lin 30k transceiver lin slave module temperature a/d sensor converter fig. 2: block diagram of the hal 2810
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