iC-SM5L

LINEAR AMR SENSOR (5 mm)

Rev B2, Page 2/7

DESCRIPTION

iC-SM5L is a linear position sensor which operates

on the AMR effect (anisotropic magneto resistance)

and has been designed to work with magnetic scales

which have a N/S pole pitch of 5 mm.

When the Sensor is moved along a magnetic scale

with a N/S pole pitch of 5 mm the two Wheatstone

bridges generate differential sinusoidal output volt-

ages (PSIN - NSIN) and (PCOS - NCOS) phase-

shifted at 90°. One sine/cosine cycle averaged us-

ing a pair of N/S poles is thus produced for a pole

width. The absolute magnetic field strength must be

large enough for the sensor to go into saturation and

for the magnetization of iC-SM5L’s resistor stripes to

assume the direction of the outer magnetic fields.

The amplitudes of the differential output voltages are

largely independent of the magnetic field strength

and thus not sensitive to changes in distance.

iC-SM5L is resistant to strong magnetic fields and not

sensitive to external homogenous magnetic fields.

PACKAGING INFORMATION

PIN CONFIGURATION

TOP VIEW

<A-CODE>

BOTTOM VIEW

1

6

5

4

3

2

dra_sm2c-sm5l_a_pack_3, 8:1

Platzhalter für Gehäuse Beschriftung:

Procuct-Code

Assembly-Code

Date-Code

Lage und Anzahl bei Mb erfragen!

25.04.2014, HMS

<P-CODE>

<D-CODE>

PIN FUNCTIONS

No. Name Function

1 PCOS Noninverted Cosine Output

2 NCOS Inverted Cosine Output

3 VCC

Supply Voltage

4 GND

Ground

5 PSIN

Noninverted Sine Output

6 NSIN

Inverted Sine Output

IC top marking: <A-CODE> = assembly code (subject to changes).