HAL880_1 Datasheet, PDF (1/2 Pages) Micronas – Programmable Linear Hall-Effect Sensor

PRODUCT INFORMATION
HAL 880
Sept/2008
HAL^® 880
Programmable Linear Hall-Effect Sensor
The HAL 880 complements the existing
Hall-effect sensor family HAL 8xy to the
lower end. It is designed to fulfil the require-
ments of today’s state-of-the-art applica-
tions for linear and angular measurements
that require programmability to compensate
system tolerances.
Due to its good drift performance and pro-
grammability, the sensor can easily replace
non-programmable, standard linear sensors
in a wide variety of applications. Due to its
programmability, it also offers the additional
advantage of compensation of system toler-
ances. This is mandatory for applications
like accelerator pedal sensing, current mea-
surement, bending light, or head light
adjustment.
The sensor provides a linear, ratiometric
analog output signal with implemented wire-
break detection working with pull-up or pull-
down resistor.
Major characteristics like magnetic-field
range, sensitivity, VOQ (output voltage at
zero magnetic field), and the temperature
coefficients can easily be adjusted to the
magnetic circuit (linear and quadratic) by
programming the non-volatile memory.
The HAL 880 is available in the very small
leaded package TO92UT.
Main Features
V Sensitivity drift over temperature less
than ±6%
V Offset drift over temperature less than
±15 μT/K
V Integral non-linearity error of output
signal ±1% of V_DD
V Ratiometric error of output signal ±1%
V Low output noise of 25 mV peak-peak
V Wire-break detection with 5 kΩ pull-up or
pull-down resistor
V Four programmable magnetic ranges:
±30, ±60, ±80, and ±100 mT
V Two programmable 3 dB filter frequen-
cies: 500 Hz and 1 kHz
V Programmable sensitivity and offset
(VOQ)
V 12-bit ratiometric analog output
V Digital signal processing
V Temperature characteristics programma-
ble to match all common magnetic mate-
rials
V 13 customer data bits
V Programming by modulation of the
supply voltage
V Operates from –40 °C up to 140 °C
junction temperature
V Operates from 4.5 V up to 5.5 V supply
voltage
V Magnetic characteristics extremely
robust against mechanical stress
Major Applications
V Due to the sensor’s versatile program-
ming characteristics, the HAL 880 is the
optimal system solution for applications
such as:
– Contactless potentiometers
– Rotary position measurement
– Linear movement
– Current measurements