Home Front end Renesas Introduces Highly Accurate, Cost-Effective Pressure Sensing Solution for Automotive Applications

Renesas Introduces Highly Accurate, Cost-Effective Pressure Sensing Solution for Automotive Applications


The new RAA2S425x product family integrates multiple analog and digital functions to reduce design time and costs for xEV / EV / FCEV pressure sensing brake, transmission and HVAC systems

TOKYO, September 28, 2021– (BUSINESS WIRE) – Renesas Electronics Corporation (TSE: 6723), a leading provider of advanced semiconductor solutions, today introduced the RAA2S425x family of integrated circuits for automotive pressure sensing systems . The new devices provide highly accurate amplification and sensor-specific correction of signals in xEV / EV / FCEV automotive pressure sensing brake, transmission and HVAC systems. The RAA2S425x product family features high integration and advanced digital and analog features that dramatically ease the design cycle and reduce system nomenclature and customer production costs.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20210928005314/en/

Renesas’ Highly Accurate, Cost-Effective Automotive Pressure Sensing Solution (Graphic: Business Wire)

RAA2S425x integrated circuits support all major pressure sensing technologies and feature a high performance Analog Front End (AFE) for better signal conditioning. The new devices offer Extended Analog Sensor Offset Compensation (XSOC), adjustable on almost all resistive bridges. They provide pressure and temperature readings with high accuracy (0.35% – 1.0%) over a wide temperature range (-40 ° C to 150 ° C).

RAA2S425x integrated circuits feature an integrated 16-bit RISC microcontroller that provides digital compensation for offset, sensitivity, temperature drift and non-linearity. It has very reliable non-volatile memory (NVM) for storing calibration coefficients and configuration data in harsh automotive environments. The RAA2S425x communicates digitally with the calibration equipment, reducing sensitivity to noise. Digital calibration allows customers to reduce assembly costs as it does not require trimming of the sensing elements. The RAA2S425x is an optimal solution for safety and tough automotive applications with the integration of surge and reverse polarity protection circuitry, ASIL-B compliance to ISO26262, excellent electromagnetic compatibility and multiple superior diagnostic functions .

“The RAA2S425x product family showcases the unique capabilities Renesas brings to automotive customers with our strong portfolio of analog and digital technologies. ” said Christian Wolf, Vice President of Automotive Analog Sensors Business Division at Renesas. “The new pressure sensing solution enables our customers to reduce design time with highly accurate and reliable systems that meet stringent automotive safety requirements.

Main features of the RAA2S425x pressure detection solution

  • High-performance analog front-end (AFE) for better signal conditioning

  • High precision pressure readings from 0.35% to 1.0%. 13-18 bit efficient ADC resolution

  • Wide temperature range from -40 ° C to 150 ° C. AEC-Q100 Grade 0 certified (-40 ° C to 150 ° C)

  • ASIL-B automotive compliance according to ISO26262.

  • Extended Analog Sensor Offset Compensation (XSOC) enables support for multiple resistive bridges with on-chip selectable PTAT (Absolute Temperature Proportional) support to provide external temperature sensing

  • Digital compensation for offset, sensitivity, temperature drift and non-linearity for increased accuracy

  • Digital calibration reduces assembly costs by eliminating the need to cut sensing elements

  • Calibration and configuration data stored in highly reliable non-volatile memory

  • Ratiometric analog output signal and 100s output update rate in fastest mode

  • Diagnosis and fault monitoring for safe operation

  • Static and temporary diagnostic modes available

Renesas has combined the RAA2S425x with complementary MCU, analog and power offerings to create winning combinations for automotive xEV / EV / FCEV pressure sensing brake, transmission and HVAC systems. Renesas offers over 250 winning combinations with compatible devices for a wide range of applications and end products at https://www.renesas.com/win. The winning combinations for automotive applications are available at https://www.renesas.com/us/en/application/winning-combinations-automotive.


RAA2S425x devices are available today in 4mm x 4mm QFN-24 packages with wettable sidewalls. For more information, please visit: https://www.renesas.com/RAA2S4251B.

About Renesas Electronics Corporation

Renesas Electronics Corporation (TSE: 6723) delivers reliable in-vehicle design innovation with complete semiconductor solutions that enable billions of connected smart devices to improve the way people work and live. A global leader in microcontrollers, analog, power and SoC products, Renesas provides complete solutions for a wide range of automotive, industrial, infrastructure and IoT applications that help shape a future without limits. Learn more at renesas.com. Follow us on LinkedIn, Facebook, Twitter, YouTube and Instagram.

(Remarks). Arm, Arm Cortex and TrustZone are trademarks or registered trademarks of Arm Limited in the EU and in other countries. All product or service names mentioned in this press release are trademarks or registered trademarks of their respective owners.

See the source version on businesswire.com: https://www.businesswire.com/news/home/20210928005314/en/


Media contact:
Don Parkman
Renesas electronics company
+ 1-408-887-4308
[email protected]


Please enter your comment!
Please enter your name here