GMR B6

Data Sheet

2

2000-07-01

The GMR B6 is an angle sensor based on sputtered metallic multilayer technology.

4 resistors are monolithically integrated on 1 chip. They can be used as a fullbridge or,

if 2 external resistors are added, as 2 halfbridges. The outstanding feature of this

magnetic sensor is the fact, that it is sensitive to the orientation of the magnetic field and

not to its intensity as long as the field is in a range between 5 … 15 kA/m. This means,

the signal output of this sensor is independent of the sensor position relative to the

magnet in lateral, axial or rotational direction in the range of several millimeters.

Optimum results are achieved by using magnetic targets like permanent magnets or

magnetic pole-wheels. There is no need for a biasing magnet! Due to the linear change

of both, basic and field dependent part of the resistance vs. temperature, simple and

efficient electronic compensation of

T

Figure 1

Output Voltage of Half Bridges (V1, V4) and Full Bridge (V4 - V1) as a Function of

the Magnetic Field Orientation

GMR B6

-1

0

AED02956

-0.5

0

0.5

1

90

180

270

Deg

360

V

4

V

1

V

Angle