ISM303DAC datasheet(13/80 Pages) STMICROELECTRONICS

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DocID030988 Rev 2

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ISM303DAC

Module specifications

2.1

Sensor characteristics

@ Vdd = 1.8 V, T = 25 °C unless otherwise noted (a).

Noise density is the same for all ODR.

a. The product is factory calibrated at 1.8 V. The operational power supply range is from 1.71 V to 1.98 V.

Table 3. Sensor characteristics

Symbol

Parameter

Test conditions

Min.(1)

Typ.(2)

Max.(1)

Unit

LA_FS

Linear acceleration

measurement range

±2

±4

±8

±16

M_FS

Magnetic dynamic range(3)

±25

±49.152

gauss

LA_So

Sensitivity 16-bit(4)(5)

@ FS ±2 g

-7%

0.061

+7%

mg/digit

@ FS ±4 g

-7%

0.122

+7%

@ FS ±8 g

-7%

0.244

+7%

@ FS ±16 g

-7%

0.488

+7%

M_So

Magnetic sensitivity(5)

-10%

1.5

+10%

mgauss/

LSB

LA_TCSo

Linear acceleration sensitivity

change vs. temperature(6)

0.01

%/°C

M_TCSo

Magnetic sensitivity change vs.

temperature(6)

±0.03

%/°C

LA_TyOff

Typical zero-g level offset

accuracy(7)(8)

-80

±30

+80

M_TyOff Magnetic sensor offset

With offset cancellation(9)(10)

-60

+60

mgauss

LA_TCOff Zero-g level change vs. temp.(6) Max. delta from 25 °C

±0.2

mg/°C

M_TCOff

Magnetic sensor offset change

vs. temp.

With offset cancellation(9)

-0.3

+0.3

mgauss/

°C

LA_AN

Noise density - high-

performance mode (HR or HF

mode)(11)

@ FS ±2 g

120

μg/√Hz

@ FS ±4 g

150

@ FS ±8 g

200

@ FS ±16 g

300

LA_RMS

RMS noise - low-power

mode(12)

@ FS ±2 g

6.3

mg(RMS)

@ FS ±4 g

8.2

@ FS ±8 g

@ FS ±16 g

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