industry news
Subscribe Now

ams extends magnetic position sensors portfolio with automotive-grade and ISO26262 safety-compliant dual die integrated circuits

With dual-die redundancy, full data path diagnostics and enhanced self-test capabilities, the AS5270A/B position sensors enable automotive OEMs to comply with the highest safety standards

Premstaetten, Austria (5 July, 2017) — ams (SIX: AMS), a leading worldwide supplier of high performance sensor solutions, announces a new series of magnetic position sensors with increased safety and diagnostic capabilities to help automotive OEMs achieve the highest in ISO26262 ASIL system safety-level compliance.

The AS5270A/B devices are ideal for many automotive applications including brake and gas pedals, throttle valve and tumble flaps, steering wheel position, chassis ride-height, Exhaust Gas Recirculation (EGR) valves, fuel-level measurement systems, and 2/4 wheel drive switching.

The new AS5270A and AS5270B system-on-chip (SOC) devices are 0 to 360o rotary magnetic position sensors, that provide contactless high resolution, absolute angle measurements. The AS5270A/B were developed as SEooC (Safety Element out of Context) devices, as defined per the ISO26262 functional safety standard specification.

The AS5270A/B magnetic position sensors provide on-chip full datapath diagnostics, that test the entire device, from the Hall sensor front end, through the DSP engine that converts raw measurements of magnetic field strength into sine and cosine vectors, to the back-end interfaces and pins.

The AS5270A/B are stacked and aligned dual-die devices, AEC-Q100 Grade 0 qualified and come in MLF-16 surface mount packages for high-reliability and redundant operations. Separate package pins are provided for each die in order to avoid electrical fault in the device from affecting both dies.

With an internal 14-bit (0.22o) resolution front-end core Hall sensor array, the AS5270A/B devices provide true 12-bit output resolution. The high sensitivity Hall sensor front-ends also enable the devices to work with small, lower cost target magnets and support a wide magnetic field strength input range of 10-90mT.

The AS5270A provides an analog output, and the AS5270B provides either a digital SENT (Single Edge Nibble Transmission) or PWM (Pulse Width Modulation) output that is customer programmable. Both devices also support customer programmable angular range limit clamps, digital filtering, and output linearization features. In addition, with the AS5270B there are customer programmable settings for various SENT and PWM interface protocol features. For both devices, one wire programming is accomplished via the output pin, and due to onboard charge-pumps no high voltage programming levels are required. Once the one-time-programmable (OTP) fuses are blown, there is no possibility of the devices becoming inadvertently or maliciously reprogrammed, thus further reducing automotive safety risks.

The AS5270A/B position sensors operate off of a 5V supply voltage, and the supply and output pins are protected against overvoltage up to +20V. In addition, the supply pins are protected against reverse polarity up to –20V.

The AS5270A/B devices are immune to magnetic stray fields, thus ensuring highly accurate and repeatable measurements even in the nosiest of magnetic environments. This results in very reliable performance and reduced system cost, since there is no need for sophisticated shielding that is typically required by competitive magnetic position sensor ICs.

“The release of our AS5270A/B devices represents ams’ continued commitment to supporting the evolving functional safety requirements of our automotive customers”, said Marcel Urban, Head of Marketing and Product Management for position sensors at ams. “ams’ new magnetic position sensors offer integrated safety support features, providing automotive OEMs with a more robust set of diagnostic and self-test features in a magnetic position sensor than ever before, and as a result, enabling them to achieve the highest in ISO26262 safety standards compliance.”

The AS5270A/B magnetic position sensors are available immediately in production volumes.
Unit pricing is US$ 3.98 for AS5270A/B in order quantities of 1.000.
Evaluation boards for the AS5270A/B are available from the ams ICdirect online store.

For sample requests and for more technical information, please go to
www.ams.com/Position-Sensors/AS5270

About ams

ams is a global leader in the design and manufacture of advanced sensor solutions. Our mission is to shape the world with sensor solutions by providing a seamless interface between humans and technology.

ams’ high-performance sensor solutions drive applications requiring small form factor, low power, highest sensitivity and multi-sensor integration. Products include sensor solutions, sensor ICs, interfaces and related software for consumer, communications, industrial, medical, and automotive markets.
With headquarters in Austria, ams employs over 5,800 people globally and serves more than 8,000 customers worldwide. ams is listed on the SIX Swiss stock exchange (ticker symbol: AMS). More information about ams can be found at www.ams.com

Leave a Reply

featured blogs
Nov 27, 2023
Most design teams use the schematic-driven connectivity-aware environment of Virtuoso Layout XL. However, due to the reuse of legacy designs, third-party tools, and the flexibility of the Virtuoso platform, a design can lose binding and connectivity. Despite the layout being ...
Nov 27, 2023
Qualcomm Technologies' SVP, Durga Malladi, talks about the current benefits, challenges, use cases and regulations surrounding artificial intelligence and how AI will evolve in the near future....
Nov 27, 2023
See how we're harnessing generative AI throughout our suite of EDA tools with Synopsys.AI Copilot, the world's first GenAI capability for chip design.The post Meet Synopsys.ai Copilot, Industry's First GenAI Capability for Chip Design appeared first on Chip Design....
Nov 6, 2023
Suffice it to say that everyone and everything in these images was shot in-camera underwater, and that the results truly are haunting....

featured video

TDK CLT32 power inductors for ADAS and AD power management

Sponsored by TDK

Review the top 3 FAQs (Frequently Asked Questions) regarding TDK’s CLT32 power inductors. Learn why these tiny power inductors address the most demanding reliability challenges of ADAS and AD power management.

Click here for more information

featured paper

Power and Performance Analysis of FIR Filters and FFTs on Intel Agilex® 7 FPGAs

Sponsored by Intel

Learn about the Future of Intel Programmable Solutions Group at intel.com/leap. The power and performance efficiency of digital signal processing (DSP) workloads play a significant role in the evolution of modern-day technology. Compare benchmarks of finite impulse response (FIR) filters and fast Fourier transform (FFT) designs on Intel Agilex® 7 FPGAs to publicly available results from AMD’s Versal* FPGAs and artificial intelligence engines. Also join us for a webinar on the future of the Programmable Solution Group.

Read more

featured chalk talk

Battery-free IoT devices: Enabled by Infineon’s NFC Energy-Harvesting
Sponsored by Mouser Electronics and Infineon
Energy harvesting has become more popular than ever before for a wide range of IoT devices. In this episode of Chalk Talk, Amelia Dalton chats with Stathis Zafiriadis from Infineon about the details of Infineon’s NFC energy harvesting technology and how you can get started using this technology in your next IoT design. They discuss the connectivity and sensing capabilities of Infineon’s NAC1080 and NGC1081 NFC actuation controllers and the applications that would be a great fit for these innovative solutions.
Aug 17, 2023
12,522 views