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PDF L3GD20H Data sheet ( Hoja de datos )
| Número de pieza | L3GD20H | |
| Descripción | MEMS motion sensor | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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L3GD20H
MEMS motion sensor:
three-axis digital output gyroscope
Datasheet - production data
LGA-16 (3x3x1 mm)
Applications
• Gaming and virtual reality input devices
• Motion control with MMI (man-machine
interface)
• GPS navigation systems
• Appliances and robotics
Features
• Wide supply voltage, 2.2 V to 3.6 V
• Wide extended operating temperature range
(from -40 °C to 85 °C)
• Low voltage compatible IOs, 1.8 V
• Low power consumption
• Embedded power-down
• Sleep mode
• Fast turn-on and wake-up
• Three selectable full scales up to 2000 dps
• 16 bit rate value data output
• 8 bit temperature data output
•
2
I C/SPI digital output interface
• 2 dedicated lines (1 interrupt, 1 data ready)
• User enable integrated high-pass filters
• Embedded temperature sensor
• Embedded 32 levels of 16 bit data output FIFO
• High shock survivability
•
®
ECOPACK RoHS and “Green” compliant
Description
The L3GD20H is a low-power three-axis angular
rate sensor.
It includes a sensing element and an IC interface
able to provide the measured angular rate to the
external world through digital interface (I2C/SPI).
The sensing element is manufactured using a
dedicated micromachining process developed by
ST to produce inertial sensors and actuators on
silicon wafers.
The IC interface is manufactured using a CMOS
process that allows a high level of integration to
design a dedicated circuit which is trimmed to
better match the sensing element characteristics.
The L3GD20H has a full scale of
±245/±500/±2000 dps and is capable of
measuring rates with a user selectable
bandwidth.
The L3GD20H is available in a plastic land grid
array (LGA) package and can operate within a
temperature range from -40 °C to +85 °C.
Order code
L3GD20H
L3GD20HTR
Table 1. Device summary
Temperature range (°C)
Package
-40 to +85
-40 to +85
LGA-16 (3x3x1)
LGA-16 (3x3x1)
Packing
Tray
Tape and reel
March 2013
This is information on a product in full production.
DocID023469 Rev 2
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www.st.com
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1 page  
L3GD20H
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Table 35.
Table 36.
Table 37.
Table 38.
Table 39.
Table 40.
Table 41.
Table 42.
Table 43.
Table 44.
Table 45.
Table 46.
Table 47.
Table 48.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SPI slave timing values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
I2C slave timing values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Trigger stamping mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Serial interface pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
I2C terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SAD+Read/Write patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Transfer when Master is writing one byte to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Transfer when Master is writing multiple bytes to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Transfer when Master is receiving (reading) one byte of data from slave . . . . . . . . . . . . . 29
Transfer when Master is receiving (reading) multiple bytes of data from slave . . . . . . . . . 29
Register address map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
WHO_AM_I register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CTRL1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CTRL1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DR and BW configuration setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power mode selection configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CTRL2 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CTRL2 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
High pass filter mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
High pass filter cut off frequency configuration [Hz] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CTRL3 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CTRL3 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CTRL4 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CTRL4 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CTRL5 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
CTRL5 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
REFERENCE register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
REFERENCE register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
OUT_TEMP register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
OUT_TEMP register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
STATUS register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
STATUS description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FIFO_CTRL register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
FIFO_CTRL register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
FIFO mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
FIFO_SRC register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
FIFO_SRC register description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
IG_CFG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
IG_CFG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
IG_SRC register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
IG_SRC description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
IG_THS_XH register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
DocID023469 Rev 2
5/52
5 Page 
L3GD20H
Mechanical and electrical specifications
2.2 Electrical characteristics
(b)
@ Vdd =3.0 V, T=25 °C unless otherwise noted .
Symbol
Parameter
Table 4. Electrical characteristics
Test condition
Min.
Typ.(1)
Max.
Unit
Vdd Supply voltage
(2)
Vdd_IO I/O pins supply voltage
2.2 3.0 3.6 V
1.71 Vdd+0.1 V
Idd Supply current
5.0 mA
IddSL
Supply current
(3)
in sleep mode
Selectable by digital
interface
2.5 mA
Supply current in power- Selectable by digital
IddPdn
down mode
interface
1 μA
Digital high level input
VIH
voltage
0.8*Vdd_I
O
V
Digital low level input
VIL
voltage
0.2*Vdd_I
V
O
(4)
Ton Turn-on time
LPF2 disabled
ODR = 190 Hz
50 ms
Operating temperature
Top
range
-40 +85 °C
1. Typical specifications are not guaranteed.
2. It is possible to remove Vdd maintaining Vdd_IO without blocking the communication busses, in this condition the
measurement chain is powered off.
3. Sleep mode introduces a faster turn-on time related to power down mode.
4. Time to obtain stable sensitivity (within ±5% of final value) after exiting power-down mode. It is guaranteed by design.
b. The product is factory calibrated at 3.0 V.
DocID023469 Rev 2
11/52
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet L3GD20H.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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