ZSSC3135BE1B

Overview

The ZSSC3135BE1B is a wafer-level component from the Renesas ZSSC313x family, designed as a sensor signal conditioner for piezoresistive bridge sensors. It integrates an analog front-end with a fixed gain of 105 and a 16-bit RISC microcontroller for digital compensation of offset, sensitivity, temperature drift, and nonlinearity. The device supports sample rates up to 200Hz and offers ADC resolutions of 13 or 14 bits. It provides ratiometric analog voltage output or ZACwire™ digital interface options. Key electrical specifications include a maximum supply current of 5.5mA, high voltage protection up to 33V, and an operating temperature range of -40°C to +150°C.

Feature Summary

• Integrated digital compensation for sensor offset, sensitivity, temperature drift, and nonlinearity using an internal 16-bit RISC microcontroller.
• High-voltage protection capability up to 33V with reverse polarity and short circuit protection features.
• Flexible output configuration supporting either ratiometric analog voltage or ZACwire™ one-wire digital interface.
• On-chip EEPROM storage for calibration coefficients derived from single-pass calibration procedures.

Applications

• Automotive pressure and position sensing applications requiring high accuracy.
• Industrial sensor interfaces utilizing piezoresistive bridge elements.
• Systems demanding digital correction of sensor nonlinearity and temperature effects.

Procurement Notes

Verify the specific suffix BE1B indicates the unwafer form factor, as distributors may list this part under generic family names. Confirm availability status, as some listings indicate discontinuation or limited stock. Ensure the procurement source references the official Renesas datasheet for the ZSSC3135 family to validate pinout and electrical characteristics before integration.

Selection Notes

Select the ZSSC3135BE1B when designing for piezoresistive sensors requiring integrated linearization and temperature compensation. The fixed analog gain of 105 suits applications needing high resolution without external amplification. Consider the ZACwire™ interface if digital communication is preferred over analog outputs. Verify that the -40°C to +150°C operating range meets the environmental requirements of the target application.

Part Context

This component belongs to the ZSSC313x product family of CMOS integrated circuits. The family includes variants optimized for different sensor types and interface needs. The ZSSC3135 specifically targets piezoresistive bridge sensors, distinguishing itself from other family members like the ZSSC3131 which is optimized for cost-sensitive switch applications.

Replacement Considerations

Consult the official Renesas documentation for direct substitutes within the ZSSC313x family. Variants such as ZSSC3135BA1B have been noted as obsolete in some distributor records; verify current active status for any potential replacement parts.