ISM303DAC datasheet(35/80 Pages) STMICROELECTRONICS

Il numero della parte	ISM303DAC

Spiegazioni elettronici	High-performance, low-power, compact 3D accelerometer and 3D magnetometer module

PDF	80 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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35 / 80 page

DocID030988 Rev 2

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ISM303DAC

Functionality

4.2.6

Accelerometer data stabilization time vs. ODR setting

The data stabilization time required when an ODR change is applied in order to have valid

usable data depends on the ODR selected and accelerometer setting.

The table below provides the number of samples to be discarded in order to obtain valid

usable data for the accelerometer.

4.3

IC interface

The complete measurement chain is composed of a low-noise capacitive amplifier which

converts the capacitive unbalancing of the MEMS sensor into an analog voltage using an

analog-to-digital converter.

The acceleration and magnetic data may be accessed through an I2C/SPI interface, thus

making the device particularly suitable for direct interfacing with a microcontroller.

The ISM303DAC features a data-ready signal which indicates when new sets of measured

acceleration and magnetic data are available, thus simplifying data synchronization in the

digital system that uses the device.

Table 18. Number of samples to be discarded

ODR [Hz]

6400

3200

1600

800

400

200

100

12.5

ISM303DAC Scheda tecnica(PDF) 35 Page - STMicroelectronics