MLX90288 Datasheet, PDF (10/19 Pages) Melexis Microelectronic Systems – SMD Programmable Linear Hall Sensor IC Featuring Analog Ratiometric Output

MLX90288
SMD Programmable Linear Hall Sensor IC
Featuring Analog Ratiometric Output
6.2.6 TC2ND[5:0]
• Will be calibrated at MLX production
• Programming piecewise linear sensitivity temperature drift compensation
• It is like an additional TC1 starting at 25 °C +/-30 °C
• Piecewise linear compensation for hot temperatures = TC1ST + TC2ND
6.2.7 TC3RD[2:0]
• Will be calibrated at MLX production
• Programming piecewise linear sensitivity temperature drift compensation
• It is like an additional TC1 starting at - 5 °C
• Piecewise linear compensation for cold temperatures = TC1ST + TC2ND + 2*TC3RD
6.2.8 PLATEPOL
• Will be calibrated at MLX production
• Changes the polarity of the Hall plates, inverting the sensing nodes
• Changing the plate polarity will make the MLX production calibration void
• Changing the polarity of the output signal is recommended to be achieved by changing the
FINEGAIN MSB
6.2.9 OFFCST[4:0]
• Will be calibrated at MLX production
• Residual offset calibration (at Integrator stage) to make sure that the ADC input is at half of the ADC
span when no field is applied
• Analog compensation, sign magnitude number
6.2.10 OFFDRIFT[5:0]
• Will be calibrated at MLX production
• Compensates linearly for residual offset temperature drift at the Integrator stage
• Analog compensation, sign magnitude number
6.2.11 ROUGHGAIN[2]
• Set by default to 1 by Melexis
6.2.12 XA[13:0]
• Will be calibrated at MLX production
• Gain-dependent offset, should not be modified after calibration
• Removes the residual offset of the ADC output when no field is applied
6.2.13 MLXID[31:0]
• Melexis ID bits for traceability
• Can no be overwritten in PTC mode
3901090288
Rev 002
Page 10 of 19
May/12