mlx90251 Melexis Company, mlx90251 Datasheet - Page 4

• Manufacturer Part Number: mlx90251
• Description: Programmable Linear Hall Effect Sensor
• Manufacturer: Melexis Company

Figure 5-1 Detailed Block Diagram
Integrated on the MLX90251 is a temperature-compensated quad switched Hall plate, chopper stabilized
amplifiers, adjustable output filter, output driver, voltage protection circuitry and a programmable EEPROM
with security and redundancy. Programming the EEPROM allows each device to be calibrated in the
application.
In normal operation data stored in the EEPROM feeds a register, RAM, that updates internal DACs and
switches that effect the operation of the device. In programming mode the RAM can be directly accessed to
allow faster calibration of the parameters. Communication to the device is done using Melexis' PTC serial
interface.
3901090251
Rev 009
5 Detailed Block Diagram
5.1 Detailed Description
Page 4 of 22
Programmable Linear Hall Effect Sensor
MLX90251
Data Sheet
Nov/06