L3G3250ATR datasheet, PDF - EEWORLD Datasheet

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L3G3250ATR: DescriptionSPECIALTY ANALOG CIRCUIT, PBGA16, 3.50 X 3.00 MM, 1.00 MM HEIGHT, GREEN, PLASTIC, LGA-16; CategoryAnalog mixed-signal IC The signal circuit; File Size258KB，12 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

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L3G3250ATR Overview

SPECIALTY ANALOG CIRCUIT, PBGA16, 3.50 X 3.00 MM, 1.00 MM HEIGHT, GREEN, PLASTIC, LGA-16

L3G3250ATR Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	STMicroelectronics
Parts packaging code	LGA
package instruction	3.50 X 3 MM, 1 MM HEIGHT, GREEN, PLASTIC, LGA-16
Contacts	16
Reach Compliance Code	compliant
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	R-PBGA-B16
length	3.5 mm
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TFLGA
Encapsulate equivalent code	LCC16,.12X.14,20
Package shape	RECTANGULAR
Package form	GRID ARRAY, THIN PROFILE, FINE PITCH
power supply	3 V
Certification status	Not Qualified
Maximum seat height	1.027 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	2.4 V
Nominal supply voltage (Vsup)	3 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal form	BUTT
Terminal pitch	0.5 mm
Terminal location	BOTTOM
width	3 mm

L3G3250ATR Preview

L3G3250A

MEMS motion sensor:

three-axis analog gyroscope

Preliminary data

Features

■

Two selectable full scales (625/2500 dps)

Embedded self-test

Wide supply voltage range: 2.4 V to 3.6 V

Embedded power-down and sleep mode

Embedded low-pass filter

Integrated high-pass filter reset

High shock survivability

Extended operating temperature range (-40 °C

to 85 °C)

ECOPACK

RoHS and “Green” compliant

LGA-16 (3.5x3.0x1.0 mm)

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 L3G3250A is available in a plastic land grid

array (LGA) package and can operate within a

temperature range from -40 °C to +85 °C.

Applications

■

Gaming and virtual reality input devices

Motion control with MMI (man-machine

interface)

GPS navigation systems

Appliances and robotics

Description

The L3G3250A is a low-power three-axis angular

rate sensor.

It includes a sensing element and an IC interface

capable of providing the measured angular rate to

the external world via three analog outputs.

The sensing element is manufactured using a

dedicated micro-machining process developed by

STMicroelectronics to produce inertial sensors

and actuators on silicon wafers.

Table 1. Device summary

Order code

L3G3250A

L3G3250ATR

Temperature range (°C)

-40 to +85

Package

LGA-16 (3.5x3.0x1.0)

Packing

Tray

Tape and reel

August 2011

Doc ID 022118 Rev 1

1/12

www.st.com

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

Contents

L3G3250A

Contents

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1

2.2

2.3

2.4

Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4.1

2.4.2

2.4.3

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Self-test (ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5

2.6

Sleep mode, self-test and power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1

Full scale (FS) pin operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2/12

Doc ID 022118 Rev 1

L3G3250A

Pin description

1.1

Pin description

Figure 1.

Pin connection

VPUMP

VREF

+Ω

OUT_Y

+Ω

OUT_P

+Ω

(TOP VIEW)

DIRECTIONS OF THE

DETECTABLE

ANGULA RATES

GND

SLEEP

RES

VDD

BOTTOM

VIEW

OUT_R

OUT_P

RES

VDD

HPS

OUT_Y

OUT_R

AM10135V1

Note:

The vibration of the structure is maintained by drive circuitry in a feedback loop. The sensing

signal is filtered and appears as an analog output.

Table 2.

Pin#

Pin description

Name

HPS

OUT_Y

OUT_R

OUT_P

VDD

RES

SLEEP

GND

VPUMP

Internally not connected

Self-test pin

High-pass filter reset

(‘1’: reset of external high-pass filter; ‘0’: normal mode)

Yaw axis angular rate output

Roll axis angular rate output

Pitch axis angular rate output

Power supply

Reserved, leave unconnected

Sleep mode selection

Full scale selection

0 V supply voltage

Charge pump capacitor connection pin

(1)

Function

Doc ID 022118 Rev 1

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Pin description

Table 2.

Pin#

L3G3250A

Pin description (continued)

Name

VREF

VDD

Reference output voltage

Power supply

Function

1. To be connected to GND through 10 nF, 25 V ceramic capacitor. 1nF min value must be guaranteed under

11 V bias condition.

4/12

Doc ID 022118 Rev 1

L3G3250A

Mechanical and electrical specifications

2.1

Mechanical and electrical specifications

Mechanical characteristics

@ Vdd = 3.0 V, T = 25 °C unless otherwise noted.

Table 3.

Symbol

Mechanical characteristics

(1)

Parameter

Measurement range

FS = 625 dps

FS = 2500 dps

Test condition

Min.

Typ.

(2)

±625

±2500

0.5

±0.017

FS = 625 dps

FS = 2500 dps

1.5

±0.08

Best fit straight line

0.015

140

-40

+85

Max.

Unit

dps

SoDr

ZRL

Vref

OffDr

Top

Sensitivity

Sensitivity change vs.

temperature

Zero-rate level

Reference voltage

Zero-rate level change

vs. temperature

Non linearity

(3)

Rate noise density

Bandwidth

Operating temperature

range

mV/dps

%/°C

dps/°C

% FS

dps/

°C

1. The product is factory calibrated at 3.0 V. The operational power supply range is specified in

Table 4.

2. Typical specifications are not guaranteed.

3. Guaranteed by design.

Doc ID 022118 Rev 1

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