AMR4100 datasheet(5/7 Pages) MULTIDIMENSION

5 / 7 page

The AMR elements in chip work in the saturation

status, when the applied magnetic field strength B

is 300 Gs (25000 A/m) or above, and the output

signal will not change with the applied magnetic field

strength in this case. This allows the AMR4100 to

better adapt to a variety of applications environment,

such as air-gap vibration or high temperature

demagnetization during the operation of the

measurement system.

The output signal amplitude of AMR4100 is

proportional to the power supply voltage. Figure 4

and 5 are the schematic diagrams of the waveforms

of the two output signals of the sensor in 2 cycles

when power supply is 5 V.

The signal processing algorithm for sampling,

correcting, and decoding the output SIN/COS

analog signals will directly affect the final

measurement accuracy.

2.30

2.40

2.50

2.60

2.70

180

270

360

Magnetic field rotation angle (º)

SIN+

SIN-

COS+

COS-

Figure 4. Schematic diagram of the single-ended output

voltage waveform of AMR4100 within 2 cycles

-0.20

-0.10

0.00

0.10

0.20

180

270

360

Magnetic field rotation angle (º)

(SIN+) - (SIN-)

(COS+) - (COS-)

Figure 5. Schematic diagram of the differential output

voltage waveform of AMR4100 within 2 cycles

7. Application Information

AMR4100

MultiDimension Technology Co., Ltd.

http://www.dowaytech.com/en/

High accuracy analog output

dual axis position sensor

AMR4100 データシート(PDF) 5 Page - MultiDimension Technology Co.,Ltd.

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