HAL2810 Datasheet, PDF (1/2 Pages) Micronas – Linear Hall-Effect Sensor with LIN Bus

PRODUCT INFORMATION
HAL 2810
Feb/2008
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
V High precision linear Hall-effect sensor
V Spinning-current offset compensation
V Built-in temperature sensor
V Operating junction temperature range:
−40 °C … 140 °C
V Customer-programmable temperature
compensation of Hall-sensitivity (2^nd
order) and Hall-offset (1^st order)
V Overvoltage and reverse voltage protec-
tion at all pins.
V Magnetic characteristics extremely
robust against mechanical stress
V Digital signal processing
V 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.
V 12 bit resolution
V Non-volatile EEPROM with redundancy
and lock function
V LIN slave according to LIN Specification
Package Rev. 2.0
V Supported LIN baud rates:
10.4 kbps and 20 kbps
V 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:
V Contactless potentiometers
V Angular measurements
(e.g. for fuel-level sensing)
V Linear movement
(e.g. Seat track position)
V Linear force or torque measurements