ST cuts size of smartphone gyro chip
The L3G462A is a low-power 3-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 three analog outputs.
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 L3G462A is available in a plastic land grid array (LGA) package and can operate within a temperature range from -40 °C to +85 °C.
- ± 625 dps full scale
- Wide supply voltage range 2.4 V to 3.6 V
- Embedded power-down and sleep mode to save power consumption and shorten turn-on time
- Integrated temperature sensor
- Embedded low pass filter
- High shock survivability
- Extended operating temperature range (-40 °C to 85 °C)
- ECOPACK® RoHS and “Green” compliant
STMicroelectronics is offering a 3-axis analogue output gyroscope in a small 4x4x1mm3 package.
The L3G462A gyroscope provides angular-rate detection with a separate output for each of the three axes.
The full scale of ±625dps will measure gestures and movements of different types and speeds, enabling applications from navigation to motion-activated user interface and gaming.
Stability over temperature is specified as ±0.04dps/°C and sensitivity at ±0.017%/°C.
Noise is specified 0.017dps/?Hz.
It can operate with any supply voltage in the range of 2.4 to 3.6V and the power-down and sleep-to-wake modes contribute to the reduction in power consumption of the entire system.
Volume production is scheduled for the end of Q3 2011 and the unit price is $3.5 in quantities of 1000 pieces.
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