L3GD20HTR datasheet(17/52 Pages) STMICROELECTRONICS

Part #	L3GD20HTR

Description	MEMS motion sensor: three-axis digital output gyroscope

PDF	52 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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17 / 52 page

DocID023469 Rev 2

17/52

L3GD20H

Application hints

Figure 5. L3GD20H electrical connections and external components values

Power supply decoupling capacitors (100 nF + 10 μF) should be placed as near as possible

to the device (common design practice).

If Vdd and Vdd_IO are not connected together, 100 nF and 10 μF decoupling capacitors

must be placed between Vdd and common ground while 100 nF between Vdd_IO and

common ground. Capacitors should be placed as near as possible to the device (common

design practice).

(TOP VIEW)

+ΩZ

DIRECTIONS OF THE

DETECTABLE

ANGULAR RATES

+ΩX

+ΩY

Vdd

10µF

GND

100nF

Vdd_IO

SCL/SPC

TOP VIEW

GND

10nF(25V)*

GND

SDA/SDI/SDO

C1 must guarantee 1nF value under 12V bias condition

GND

SDO

100nF

Vdd I2C bus

Rpu

Rpu = 10kOhm

SCL/SPC

SDA_SDI_SDO

Pull-up to be added when I2C interface is used

GAMS080220130927FSR

L3GD20HTR Datasheet(PDF) 17 Page - STMicroelectronics