MEMS barometric pressure sensors have lowest noise pressure, says TDK

Claimed to achieve the industry’s lowest pressure noise of 0.4 Pa RMS and attain the industry’s lowest power consumption of 1.3 microA, the InvenSense ICP-10125 is the latest addition to the SmartPressure family of TDK’s MEMS barometric pressure sensors.

The ICP-10125 also ensures temperature stability with a temperature coefficient of ±0.5 Pa per degrees C.

The ICP-10125 combines a barometric pressure and a temperature sensor in a small 3.55 x 3.55 x 1.45mm chimney package with waterproofing gel, providing IPX8 waterproofing to 10 ATM. The uniform machined lid and chimney with groove enable easier handling at production and assembly of customer products, says TDK. The ICP-10125 can be used in fitness, smart watch, and portable devices for fitness activity monitoring, location tracking for E911 calls, and indoor/outdoor navigation (dead-reckoning, floor/elevator/step detection).

The capacitive MEMS architecture delivers lower power consumption and lower noise than competing pressure sensors technologies, says TDK. It also has low noise and low power consumption, making the ICP-10125 suitable for wearable fitness monitoring and battery powered IoT. It can measure height change as small as 85mm, less than the height of a single stair step.

Operating temperature range is -40 to +85 degrees C.

“ICP-10125 delivers high accuracy, low power, temperature stability, and waterproofing in a small package footprint targeting the wearable market,” said Uday Mudoi, director of product marketing at InvenSense, a TDK company. “It enables determination of accurate location of E911 calls, tracks changes in elevation for activity monitoring, and extends battery life of always-on motion sensing applications.”

InvenSense ICP-10125 is available now for worldwide distribution. TDK also offers a development kit (DK-10125) and evaluation platform, as well as software to support customer development. The ICP-10125 joins the ICP-10101 and ICP-10111 pressure sensor products in the SmartPressure family.

InvenSense is a TDK Group company, providing MEMS sensors for consumer electronics and industrial areas with integrated motion and sound devices. Its portfolio combines MEMS sensors, such as accelerometers, gyroscopes, compasses, and microphones with proprietary algorithms and firmware that intelligently process, synthesise, and calibrate the output of sensors, maximising performance and accuracy.

InvenSense’s motion tracking, audio and location platforms, and services can be found in mobile, wearables, smart home, industrial, automotive, and IoT products.

InvenSense is headquartered in San Jose, California and has offices worldwide.

https://invensense.tdk.com 

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MEMS-based humidity sensors upgrade environmental features

Bourns has added the BPS240 series of humidity sensors to its environmental sensor range. The MEMS-based humidity sensors have a fast response time and high accuracy/sensitivity in a small footprint.

The BPS240 series offers upgraded features compared to Bourns’ BPS230 humidity sensors. The enhanced features include a faster response time of less than one second with digital (I2C) output and higher accuracy with a typical RH accuracy of two per cent. In addition, the BPS240 MEMS humidity sensor family also delivers reliability in a small size (2.0 x 2.0 x 1.25mm) footprint, says Bourns.

The Model BPS240 series is designed to meet advanced sensor needs for immediate updates on relative humidity levels in a broad range of industrial automation, energy, building and home control and low/medium-risk medical applications. The sensor series also helps meet energy-efficient application requirements with its low voltage operation, reduced current consumption and embedded capacitive technology.

The Bourns Model BPS240 humidity sensor series is available now and is RoHS -compliant.

Bourns is a manufacturer and supplier of position and speed sensors, circuit protection devices, magnetic components, microelectronic modules, panel controls and resistive products.

Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, medical (low/medium risk) and audio market segments.

http://www.bourns.com

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SiTime enhances SiT8008 MEMS oscillator; multiples configuration options

Announcing that the SiT8008 low power MEMS oscillator can now operate between 1.62 and 3.63V, SiTime says the enhanced device can accelerates time to revenue, while simplifying inventory management for industrial and medical electronics development.

In addition to the expanded voltage range, the popular SiT8008 MEMS oscillator also includes additional programmable features such as frequency and drive strength programmability. The SiT8008 offers millions of possible configurations, adds SiTime. For example, industrial and medical applications such as factory automation, seismic sensing, and data acquisition all use many clock sources in a single system. These applications can benefit from its programmable features.

The MEMS oscillator is available from Digi-Key with short lead times. “Digi-Key is excited to offer additional value to our customers with custom programmed MEMS timing solutions from SiTime,” said David Stein, vice president of global supplier management at Digi-Key Electronics. “Customers can now order a continuous voltage option of the popular . . . SiT8008, programmed and [shipped] in as little as 48 hours,” he continued. The continuous voltage feature reduces qualification requirements across a customer’s various applications, enabling faster time-to-market, added Stein.

“Traditional oscillators are usually configured for specific frequencies and operation at one of 1.8, 2.5, or 3.3V voltages. Each configuration then requires a separate component qualification and will need to be stocked in inventory,” explained Piyush Sevalia, executive vice president of marketing at SiTime. “On the other hand . . . with the SiT8008 . . . if a customer uses multiple oscillator configurations, only one component qualification is required, reducing the time burden on valuable engineering resources. The SiT8008’s ability to operate at any voltage between 1.62V and 3.63V further simplifies system design – a customer can choose the voltage rail already available in the system rather than design a new one, which can also reduce component count.”

Along with continuous voltage operation, the SiT8008 also offers industry-leading resilience and reliability, a wide programmable frequency range with six decimals of accuracy, low power consumption, small package size, and short lead times, said SiTime.

Parts are available for sampling and in low-volume production quantities from Digi-Key now.

http://www.sitime.com

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SyncServer time server uses BlueSky to protect GPS

BlueSky technology has been integrated into Microchip’s SyncServer S600 series time server to defend against GPS jamming and spoofing.

Mission-critical networks and essential enterprise infrastructure maintains reliable operation by continuously receiving accurate timing information from network time servers. These servers however can be vulnerable to cybersecurity threats such as global positioning system (GPS) jamming and spoofing.

Microchip addresses this by integrating BlueSky technology signal-anomaly detection software into SyncServer S600 series network time server and instruments.

The company believes it is the first to fully integrate GPS jamming and spoofing detection and protection, in combination with local radio frequency (RF) data logging and analysis, inside a time server. The SyncServer S600 series Stratum 1 instrument, with BlueSky intelligent jamming and spoofing detectors, continuously monitor local GPS constellation health and examine GPS and local RF signal integrity to assure validity.

If an anomaly is detected, an alarm is sent. If necessary, the SyncServer instrument can be shifted to alternative time sources or an internal oscillator to protect ongoing timing outputs while ensuring only minimal, predictable timing degradation to vital network and business operations. Typical applications range from banking and stock trading to electric utilities and aerospace and defence.

The SyncServer BlueSky technology provides continuous detection and protection against GPS jamming and spoofing. It includes a comprehensive suite of logging, charting and measuring tools to characterise local GPS satellite signals as well as local RF events over time. This can help enable correlating, troubleshooting, identifying and correcting local anomalies, some of which may be related to consumer electronics, or nearby RF signal broadcasts.

Microchip also offers the option of the SyncServer v4.1 software release with features found in Microchip’s proven BlueSky GNSS Firewall solution for third-party GPS receivers and critical infrastructure.

Microchip Technology provides smart, connected and secure embedded control solutions. It also provides development tools and comprehensive product portfolio enable customers to create optimal designs which reduce risk while lowering total system cost and time to market. The company has over 120,000 customers across the industrial, automotive, consumer, aerospace and defence, communications and computing markets.

The company is headquartered in Chandler, Arizona, USA. In addition to its product portfolio, Microchip offers technical support.

http://www.microchip.com

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