ZSSC3135BA1B

Overview

The ZSSC3135BA1B is a CMOS integrated circuit from the ZSSC313x family, designed for automotive and industrial sensor applications. It functions as a signal conditioner specifically optimized for piezoresistive bridge sensors. The device features an internal 16-bit RISC microcontroller that executes correction algorithms to compensate for sensor offset, sensitivity, temperature drift, and nonlinearity. Calibration coefficients are stored in on-chip EEPROM via a single-pass procedure. Key electrical parameters include an analog gain of 105, a sample rate up to 200Hz, and ADC resolution of 13/14 bit. It supports ratiometric analog voltage output or ZACwire digital interface, with high voltage protection up to 33V and operation across -40°C to +150°C.

Feature Summary

• Internal 16-bit RISC microcontroller performs real-time digital compensation for sensor offset, sensitivity, temperature drift, and nonlinearity.
• Single-pass calibration procedure stores required coefficients directly into on-chip EEPROM for traceability.
• Integrated amplification stage provides fixed analog gain suitable for piezoresistive bridge elements.
• Offers flexible output options including ratiometric analog voltage or ZACwire one-wire digital interface.

Applications

• Automotive pressure and flow sensing systems
• Industrial process control instrumentation
• Piezoresistive bridge sensor signal conditioning

Procurement Notes

Verify component authenticity through authorized Renesas distributors or direct manufacturer channels. Confirm package type matches design requirements, as variants exist in wafer form. Check current lifecycle status, as availability may vary by region and date. Ensure ESD handling protocols are followed during storage and assembly. Validate supply chain documentation against official Renesas part identification records.

Selection Notes

Select this component when precise amplification and digital correction of piezoresistive sensors are required. Consider the fixed analog gain of 105 and available digital interfaces for system integration. Evaluate thermal performance within the specified -40°C to +150°C range. Compare against other ZSSC313x family members if different gain factors or interface options are needed. Verify compatibility with existing calibration tools and software.

Part Context

The ZSSC3135BA1B belongs to the broader ZSSC313x product family of sensor signal conditioners. This family includes variants tailored for different sensor types and application complexities. While sharing core architecture, individual models differ in gain settings, interface capabilities, and specific optimization targets. This particular part focuses on piezoresistive applications with robust digital compensation features.

Replacement Considerations

Direct substitutes within the ZSSC313x family should be evaluated based on matching gain specifications and interface requirements. Verify pinout compatibility and functional equivalence before substitution. Consult Renesas documentation for detailed cross-reference information regarding alternative parts with similar performance characteristics.