ZSSC3138BA1C

Overview

The ZSSC3138BA1C is a sensor signal conditioner from the ZSSC313x family, designed for automotive and industrial resistive bridge sensors. It integrates a 16-bit RISC microcontroller to compensate for offset, sensitivity, temperature drift, and non-linearity via on-chip EEPROM calibration. The device supports an analog gain of up to 420 and overall gains up to 1680. It features high ADC resolution (15/16 bit) and sample rates up to 7.8 kHz. Operating voltage ranges from 4.5 V to 5.5 V with a maximum supply current of 5.5 mA. It includes reverse polarity protection, short circuit protection, and high voltage protection up to 33 V.

Feature Summary

• Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity using internal algorithms.
• High amplification capability with adjustable analog gain and overall gain support for ceramic thick-film sensors.
• Integrated safety functionality including sensor connection monitoring and high voltage protection.
• Traceability enabled through user-defined entries stored in on-chip EEPROM.

Applications

• Automotive pressure sensors utilizing ceramic thick-film elements.
• Industrial strain gauge signal conditioning.
• Cost-optimized switch applications requiring digital correction.

Procurement Notes

Verify component authenticity by cross-referencing the Renesas Electronics Corporation manufacturer ID with official datasheets. Confirm the specific suffix BA1C corresponds to the DICE (WAFER SAWN) - FRAME package variant. Ensure compatibility with system requirements for resistive bridge sensor interfaces and I2C communication protocols before integration.

Selection Notes

Select this component when designing systems requiring precise digital correction of resistive bridge sensors without laser trimming. It is suitable for applications demanding high accuracy and long-term stability in automotive or industrial environments. Consider the 4.5 V to 5.5 V supply range and SSOP-14 or Die package options based on board space and assembly capabilities.

Part Context

The ZSSC3138BA1C belongs to the ZSSC313x product family of CMOS integrated circuits. This family is optimized for highly accurate amplification and sensor-specific correction of resistive bridge signals. The series supports various output options including ratiometric analog voltage and ZACwire™ digital interface, catering to diverse automotive and industrial sensor needs.

Replacement Considerations

Check for direct substitutes within the ZSSC313x family such as ZSSC3138BE1C or ZSSC3138BE2R. Verify pinout compatibility and electrical specifications against the original design requirements before substitution.