HAL880 datasheet(21/34 Pages) MICRONAS

tên linh kiện	HAL880

Giải thích chi tiết về linh kiện	Programmable Linear Hall-Effect Sensor

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DATA SHEET

HAL880

Micronas

Feb. 23, 2009; DSH000152_001EN

3.6.1. Definition of Sensitivity Error ES

ES is the maximum of the absolute value of 1 minus

the quotient of the normalized measured value1) over

the normalized ideal linear2) value:

In the example below, the maximum error occurs at

−10 °C:

Fig. 3–5: ES definition example

1) normalized to achieve a least-square-fit straight-line

that has a value of 1 at 25 °C

2) normalized to achieve a value of 1 at 25 °C

max abs

meas

ideal

------------

–

⎝⎠

⎛⎞

⎝⎠

⎛⎞

Tmin, Tmax

[]

1.001

0.992

-------------

–0.9%

100

125

150

175

–25

–50

0.98

0.99

1.00

1.01

1.02

1.03

-10

0.992

1.001

temperature [°C]

ideal 200 ppm/k

least-square-fit straight-line of

normalized measured data

measurement example of real

sensor, normalized to achieve a

value of 1 of its least-square-fit

straight-line at 25 °C

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