MLX90215_12 Datasheet, PDF (3/14 Pages) Melexis Microelectronic Systems – Position Programmable Linear Hall Effect Sensor

MLX90215
Position Programmable
Linear Hall Effect Sensor
2 Description
The MLX90215 is a Programmable Linear Hall Effect sensor IC fabricated utilizing silicon-CMOS
technology.
It possesses active error correction circuitry which virtually eliminates the offset errors normally associated
with analog Hall Effect devices. All magnetic response functions of the MLX90215 are fully programmable
for even greater versatility. The VOQ (VOUT@ B=0), sensitivity, direction of slope and the magnitude of
sensitivity drift over temperature, are all programmable. The ratiometric output voltage is proportional to the
supply voltage. When using the supply voltage as a reference for an A/D converter, fluctuations of ±10% in
supply voltage will not affect accuracy. When programmed for a conventional sensitivity (with a positive
gain), the voltage at the output will increase as a South magnetic field is applied to the branded face of the
MLX90215.
Conversely, the voltage output will decrease in the presence of a North magnetic field. The MLX90215 has a
sensitivity drift of less than +1% error, and VOQ stability drift of less than +0.4% error, over a broad
temperature range.
3 Electrical specifications
DC Operating Parameters TA = -40oC to 150oC, VDD = 5.0V (Unless otherwise specified)
3901090215
Rev 008
Page 3 of 14
Nov/12