ZSSC3138BA1B

Overview

The ZSSC3138BA1B is a resistive sensor signal conditioner from the ZSSC313x family, designed for automotive and industrial applications. It features an internal 16-bit RISC microcontroller that compensates for sensor offset, sensitivity, temperature drift, and non-linearity via on-chip EEPROM calibration coefficients. The device provides a maximum analog gain of 420 and supports sample rates up to 7.8 kHz with 15/16-bit ADC resolution. Operating voltage ranges from 4.5 V to 5.5 V with a maximum supply current of 5.5 mA. It includes high voltage protection up to 33 V and operates within a temperature range of -40°C to +150°C.

Feature Summary

• Internal digital compensation for sensor offset, sensitivity, temperature drift, and non-linearity using stored calibration coefficients.
• High amplification capability with adjustable analog gain up to 420 and overall gain up to 1680.
• Integrated safety functionality and traceability through user-defined EEPROM entries.

Applications

• Automotive pressure sensors utilizing ceramic thick-film-based elements.
• Industrial strain gauge signal conditioning.
• Cost-optimized switch applications requiring fast response times.

Procurement Notes

Verify the specific suffix 'BA1B' against official Renesas documentation to confirm package type and availability status. Distributor listings may show variations such as 'BA1C' or 'BE2R'. Confirm if the component is actively manufactured or end-of-life, as some variants are marked discontinued. Ensure compatibility with required calibration procedures before procurement.

Selection Notes

Select this component when high accuracy is required for resistive bridge sensors without laser trimming. The integrated microcontroller simplifies design by handling linearization internally. Consider the 7.8 kHz sample rate for dynamic applications. Verify that the 4.5 V to 5.5 V supply range matches the system power architecture. Check if the ZACwire interface or analog output is preferred for the target application.

Part Context

The ZSSC3138BA1B belongs to the ZSSC313x product family of CMOS integrated circuits. This family is optimized for highly accurate amplification and correction of resistive bridge sensor signals. Other members include ZSSC3131 and ZSSC3138 variants, which share similar core functionalities but differ in sample rates and specific feature sets tailored for different cost and performance tiers.

Replacement Considerations

Publicly confirmed substitute part numbers for ZSSC3138BA1B are not available in the provided source material. Users should consult Renesas Electronics directly for qualified alternatives or cross-reference with other ZSSC313x family members if functional requirements allow.