editor's blog
Subscribe Now

Smallest Accelerometer

At the same time that Bosch Sensortec announced its orientation sensor, they also announced their BMA355 accelerometer, which is distinguished by its size. Prior to this, the smallest footprint available for an accelerometer was 2×2 mm2. This guy is 1.2×1.5 mm2.

This was done via a die shrink. The MEMS is placed over the ASIC; the ASIC is more or less bonded straight down to its leads; it’s essentially chip-scale packaging.

In fact, they could have made the ASIC even smaller, but they were limited by a couple things:

–          The pad pitch is limited to 0.4 mm, which is standard at this point (smaller pitches are possible, but they’re considered specialized). So they’re now officially pad-limited.

–          They need to be able to put the MEMS chip on top of the ASIC and bond it down; that also sets a size constraint.

Size notwithstanding, they still include the standard interrupts, including motion on/off, double-tap, tilt, and shock. You can find more info in their release.

Leave a Reply

featured blogs
Dec 2, 2020
The folks at LEVL are on a mission is to erase your network footprint. Paradoxically, they do this by generating their own 48-bit LEVL-IDs for your devices....
Dec 2, 2020
To arrive at your targeted and optimized PPA, you will need to execute several Innovus runs with a variety of design parameters, commands, and options. You will then need to analyze the data which... [[ Click on the title to access the full blog on the Cadence Community site...
Dec 1, 2020
UCLA’s Maxx Tepper gives us a brief overview of the Ocean High-Throughput processor to be used in the upgrade of the real-time event selection system of the CMS experiment at the CERN LHC (Large Hadron Collider). The board incorporates Samtec FireFly'„¢ optical cable ...
Nov 25, 2020
[From the last episode: We looked at what it takes to generate data that can be used to train machine-learning .] We take a break from learning how IoT technology works for one of our occasional posts on how IoT technology is used. In this case, we look at trucking fleet mana...

featured video

Product Update: Broad Portfolio of DesignWare IP for Mobile SoCs

Sponsored by Synopsys

Get the latest update on DesignWare IP® for mobile SoCs, including MIPI C-PHY/D-PHY, USB 3.1, and UFS, which provide the necessary throughput, bandwidth, and efficiency for today’s advanced mobile SoCs.

Click here for more information about DesignWare IP for 5G Mobile

featured paper

Reducing Radiated EMI

Sponsored by Maxim Integrated

This application note explains how to reduce the radiated EMI emission in the MAX38643 nanopower buck converter. It also explains the sources of EMI noise, and provides a few simple methods to reduce the radiated EMI and make the MAX38643 buck converter compliant to the CISPR32 standard Class B limit.

Click here to download the whitepaper

featured chalk talk

TI Robotics System Learning Kit

Sponsored by Mouser Electronics and Texas Instruments

Robotics projects can get complicated quickly, and finding a set of components, controllers, networking, and software that plays nicely together is a real headache. In this episode of Chalk Talk, Amelia Dalton chats with Mark Easley of Texas Instruments aVBOUT THE TI-RSLK Robotics Kit, which will get you up and running on your next robotics project in no time.

Click here for more information about the Texas Instruments TIRSLK-EVM Robotics System Lab Kit