Renesas' best-in-class automotive sensor signal conditioning (SSC) ICs are optimized to withstand harsh automotive environments that require low supply current to reduce power consumption (critical for PHEV, BEV and FCEV vehicles), and provide excellent electromagnetic compatibility and ESD protection. In addition, these SSCs products offer digital compensation of inherent sensor offset, sensitivity, temperature drift, and nonlinearity covering a wide operational temperature range according to the AEC-Q100 standard (–40 °C to +150 °C).

In order to support ASIL requirements according to ISO 26262, multiple diagnostic and monitoring functions have been implemented on the SSCs to support OEMs and automotive sensor module suppliers. This ensures the SSCs support safety-critical sensor applications linked to transmission and braking, as well as other applications such as DPF, EGR and HVAC.

Renesas’ SSCs are compatible with multiple pressure sensor types, such as piezoresistive MEMS, ceramic and strain gauge for correct measurement of absolute, gauge/barometric and differential pressure. Renesas’ SSCs support high-temperature sensing using thermocouples.

These SSCs support various external temperature sensors, namely diode, RTD, TCR, and internal PTAT for correct temperature measurements. The output interfaces supported by SSCs include Analog, SENT, LIN, PWM, and I2C.

The end-of-line calibration of SSCs, supported via the output pin, uses one-wire interface (OWI) to reduce test time, ensuring calibration equipment communicates digitally. Digital calibration helps keep the customer’s overall assembly costs low, as trimming of sensing elements by external devices or lasers is not needed.  The new generation of SSCs enables customers to easily create a wide variety of sensor platforms by offering drop-in-compatibility and identical Pin & Pad layout when using the ZSSC41xx family.

The SSC evaluation kits are designed to provide an overview of the functions and configuration options for Renesas’ SSC IC family. These kits provide support for new and experienced users in the evaluation and design of their sensor modules.

Videos & Training

Sensor Signal Conditioning for Automotive

Renesas’ sensor signal conditioners (SSCs) are cost efficient and flexible solutions for automotive designs.

Video Transcript

My name is Maria Agalidis and I'm from Renesas Electronics. Today we’re going to talk about sensor signal conditioning.

The main challenge in the automotive world for sensors is to capture an analog signal and to convert it reliably into digital information for a microcontroller in the car.

Our SSCs (Sensor Signal Conditioning Devices) today are capturing pressure and temperature and convert it into precise information in the car. Despite the challenging environment like EMI, voltage drop, noise, our products are able to deliver accurately data.

Our demo is a clear example of sensor signal conditioning operating in a harsh environment like exhaust gas system. In this demo we can see two high temp probes and two pressure sensors that are controlling and monitoring the particle filter. The sensors are measuring the efficiency of the exhaust system and they are also sending diagnostics to the control unit. The ICs are dual channel solution and can serve two sensing probes.

This makes it a very cost efficient and flexible solution. That's why today all Tier1s are using SSC in different sections of the car.