MLX90333 datasheet(13/48 Pages) MELEXIS

13 / 48 page

MLX90333

Tria⊗

⊗

⊗is® Position Sensor

3901090333

Page 13 of 48

Data Sheet

Rev. 007

Jul/2013

For instance, the analog output can be programmed for offset, gain and clamping to meet any rotary

position sensor output transfer characteristic:

Vout(α) = ClampLo

for α ≤ αmin

Vout(α) = Voffset + Gain × α

for αmin ≤ α ≤ αmax

Vout(α) = ClampHi

for α ≥ αmax

Vout(β) = ClampLo

for β ≤ βmin

Vout(β) = Voffset + Gain × β

for βmin ≤ β ≤ βmax

Vout(β) = ClampHi

for β ≥ βmax

where Voffset, Gain, ClampLo and ClampHi are the main adjustable parameters for the end-user.

The linear part of the transfer curve can be adjusted through a 3 point calibration. Once only one output is

used, a 5 point calibration is also available for further improvement of the linearity.

The calibration parameters are stored in EEPROM featuring a Hamming Error Correction Coding (ECC).

The programming steps do not require any dedicated pins. The operation is done using the supply and

output nodes of the IC. The programming of the MLX90333 is handled at both engineering lab and

production line levels by the Melexis Programming Unit PTC-04 with the MLX90316 daughterboard and

dedicated software tools (DLL − User Interface).

MLX90333 Datasheet(PDF) 13 Page - Melexis Microelectronic Systems