Kionix, Inc., a global leader in MEMS inertial sensor design and manufacturing, today announced its second-generation gyro, the KGY23—a 3-axis, 4 x 4 x 0.9mm sensor that features low power, low noise, flexible output ranges, and excellent bias stability over temperature.
Aimed at the consumer market, the KGY23 features:
- Operating current consumption of 3.75 mA, a 40% decrease over its predecessor gyro, the KGY13;
- A wide, user-programmable, full-scale range of ±256, ±512, ±1024, and ±2048 °/sec;
- I2C or SPI digital serial interface bus communication;
- Noise density of .30 deg/sec/√Hz, an impressively sharp 77% decrease over previous performance figures of the KGY13;
- User-definable bandwidth via a control register of 10, 20, 40, 160 Hz;
- An embedded temperature sensor that ensures a fast 50ms power-up time;
- An internal 1024 byte FIFO buffer to accumulate data and efficiently transmit it to the customers’ external applications processor; and
- Access to supply voltages between 2.6V and 3.3V and digital communication voltages between 1.8V and 3.3V.
“The improved KGY23 is the result of our engineering depth and experience coupled with fantastic customer feedback,” said Scott Miller, vice president of engineering, Kionix. “As the industry pushes for smaller MEMS sensor products, Kionix is meeting the challenge to shrink device package size while elevating performance.”
The MEMS tri-axis gyroscope market will see extraordinary growth in the coming months as more consumer products require its capabilities for applications such as user interface, gaming and navigation. According to Richard Dixon, principal analyst, MEMS & Sensors, IHS iSuppli, “Revenue for the tri-axis gyro will nearly triple in 2011, reaching $420 million in 2011, up from $127 million in 2010. Smartphones are helping to drive this impressive growth. 29% will include a gyroscope, up from just 13% last year.”
Dixon added that gyroscopes will generate the second-highest revenue among consumer and mobile MEMS in 2011, second only to accelerometers.
With the KGY23, Kionix is well positioned to take advantage of the growing demand for the next generation of sensor applications.
Analog Devices, Inc. (ADI) released for general availability today the ADIS16136 tactical grade iSensor® digital MEMS gyroscope, which provides 3.5°/hr typical bias stability in a matchbox-sized module consuming less than 1 watt and weighing only 25 grams. The new tactical grade (below 10°/hr bias stability) iSensor MEMS gyroscope operates autonomously and requires no user configuration before producing precise and accurate rate sensing data, quickly enabling precision dependent applications such as platform stabilization and control, navigation, robotics, and medical instrumentation.
“The ADIS16136 MEMS gyro is competitive on the stability and angular random walk specifications compared to more costly fiber optic gyros, while demonstrating 2X better linearity, 30X faster start-up, and 5X lower power,” said Bob Scannell, iSensor business development manager, MEMS/Sensors Technology Group, Analog Devices. “Even more significant is the ADIS16136 gyro’s small size (~1 cubic inch) and low weight of only 25 grams. This is minute by comparison to fiber optic gyros, which can be 10 cubic-inches or larger and will enable many new applications for precision angular rate sensing.”
More About the ADIS16136 iSensor Digital MEMS Gyroscope
This ADIS16136 is optimized for dynamic performance by combining industry leading iMEMS® technology with ADI’s proven signal conditioning expertise. The ADIS16136 provides data at rates of up to 2048 SPS (samples per second) and offers an averaging/decimation filter structure for optimizing noise/bandwidth trade-offs. The serial peripheral interface (SPI) and user register structure provide easy access to configuration controls and calibrated sensor data for embedded processor platforms. Full device-specific calibration over temperature drives the internal compensation resulting in highly stable sensor output with no additional test or characterization required. The available wide bandwidth of 380 Hz provides significant advantage to complex stabilization applications. The new gyro ships in a 36 mm × 44 mm × 14 mm package. Four holes are provided for simple mechanical attachment with a standard 24-pin, dual row, 1-mm-pitch connector that supports electrical attachment to a printed circuit board or cable system. Operating temperature range is −40°C to +85°C.
ADIS16136 iSensor Gyroscope Key Specifications
- Digital gyroscope system, ±450°/sec measurement range
- Noise: 0.0036 °/sec/√Hz rms
- In-run bias stability: 3.5°/hour
- Angular random walk: 0.16 °/√hr
- Bias temperature coefficient: +0.00125 °/s/°C
- Sensitivity temperature coefficient: +/- 35 ppm/°C
- Power-on start-up time: 180ms
- Sleep mode recovery time: 2.5ms
INVENSENSE INTRODUCES THE WORLD’S SMALLEST DUAL-AXIS GYROSCOPES FOR OPTICAL IMAGE STABILIZATION IN SMARTPHONES
InvenSense, Inc., the leading provider of MotionProcessing™Solutions for consumer electronics, today announced the introduction of a family of dual-axis gyroscopes, IDG-2020 and IXZ-2020, that address the market needs for optical image stabilization (OIS) in smartphones. Smartphones are rapidly replacing digital still cameras (DSC) as the devices of choice for capturing images; however, their image quality has generally been worse than DSCs due to blurry images, especially those taken in low-light conditions. By incorporating OIS technology, the same method adopted by many digital still camera manufacturers, smartphone image quality can be dramatically enhanced.
10-DOF MEMS IMU MAKES TACTICAL GRADE PERFORMANCE ACCESSIBLE, AFFORDABLE, AND MORE ROBUST IN SEVERE ENVIRONMENTS
Analog Devices, Inc. (ADI) released for general availability today the third generation iSensor® MEMS IMU (inertial measurement unit). The ADIS16488 is a tactical grade 10-degree-of-freedom (DoF) sensor and integrates a tri-axis gyroscope, tri-axis accelerometer, tri-axis magnetometer and a pressure sensor into a single package. This new MEMS IMU provides the most stable and complete integrated sensor suite available, supporting mission critical requirements in high-performance navigation and stabilization applications. Beyond the important tactical grade (below 10°/hr) bias stability, the ADIS16488 outperforms all other contemporary gyro/IMU offerings on the often more critical specifications of g-effect, temperature coefficient, and bandwidth by up to 100X.
Analog Devices, Inc. (ADI) today introduced the ADXRS800 iMEMS® gyroscope, featuring a patented differential quad-beam architecture designed to minimize the influence of linear shock and vibration. Intended for automotive electronic stability control, rollover detection, and pitch detection applications. Qualified for automotive safety applications, the ADXRS800 is the most stable, vibration-immune automotive-grade gyro available while a continuous electro-mechanical self-test feature ensures the integrity of the gyro output signal. read more…