TLE4990

Programmable Linear Hall Sensor

Electrical and Magnetic Parameters

Data Sheet

13

V 2.4, 2005-11

Magnetic Parameters

Table 5

Magnetic Characteristics

Parameter

Symbol Limit Values

Unit

Notes

min.

typ

max.

Sensitivity

S

15

-

180

mV/mT programmable for

1)

2)

In the lowest programmable sensitivity range a sensitivity less or equal to min(S) is guaranteed.

In the highest programmable sensitivity range a sensitivity of greater or equal to max(S) is guaranteed.

The ratio of max(S) / min(S)

≥ 15.

19.8

20

20.2

mV/mT TLE4990-E6782 1) 3)

3)

@ 25 °C

Magnetic field

range

MFR

± 13.05 -

± 204.5 mT

4)

Not for the -E6782 version.

26.1

-

409

Bipolar-Bit =0 4)

± 115.8 ± 117.5 ± 118.2

TLE4990-E6782

Linearity

Lin

99.9

100

100.1

%

5)

5)

Lin = (

Temperature

coefficient of

sensitivity

α

200

350

500

ppm/

°C

6)

6)

The temperature coefficient of the magnetic sensitivity is the slope of a linear least-square fit through

the real curve.

Sensitivity drift

over lifetime

-0.9

-

0.9

%

Zero field drift

over

temperature

-500

-

150

µT

valid for

7)

For lower sensitivities, the zero voltage drift is dominant (see Table 4).

Resolution

20

-

60

8)

Equivalent to magnetic input noise at 25 °C. The equivalent magnetic input noise depends on the selected