ZSC31150GAC

Overview

The Renesas ZSC31150GAC is a single-channel sensor signal conditioner designed for automotive bridge sensors. It operates on a 4.5V to 5.5V supply with a typical current of 5.5mA. The device features an internal reference, analog output, and I2C interface. It is housed in an SSOP-14 package and supports an operating temperature range from -40°C to +125°C. Certified under AEC-Q100, it includes ESD protection and digital compensation capabilities for offset, sensitivity, and non-linearity.

Feature Summary

• Digital compensation for sensor offset, sensitivity, temperature drift, and non-linearity via integrated microcontroller
• Supports nearly all resistive bridge sensors through programmable gain amplifier and ADC
• Integrated diagnostic functions for safety-critical automotive applications
• Bi-directional digital interfaces including I2C for calibration coefficient programming

Applications

• Automotive pressure sensors (piezoresistive and steel-membrane)
• Braking and steering system sensors
• Force, torque, acceleration, angle, position, and revolution sensors

Procurement Notes

Verify the specific suffix 'GAC' against official Renesas documentation, as standard listings often use 'GAG' or 'GEG'. Confirm package type and temperature grade match project requirements. Ensure AEC-Q100 certification is valid for the specific revision. Check for obsolescence notices or lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when digital correction of bridge sensor errors is required without external processing. It is suitable for applications needing high accuracy in harsh automotive environments. Consider the I2C interface for calibration flexibility. Verify that the SSOP-14 package fits the PCB layout constraints and thermal management needs.

Part Context

The ZSC31150 series is part of Renesas' automotive sensor interface portfolio. It replaces discrete conditioning circuits by integrating amplification, filtering, and digital correction. The family includes variants with different packages like DFN-14 and die forms, catering to diverse automotive integration needs while maintaining consistent core functionality.

Replacement Considerations

Direct substitutes include other ZSC31150 variants such as ZSC31150GAG or ZSC31150GEG, differing primarily in packaging or temperature rating. Verify pin compatibility and software calibration data retention when switching between package types within the same series.