ZSSC3138BE1B

Overview

The ZSSC3138BE1B is a CMOS integrated circuit within the ZSSC313x family, designed as an automotive-grade sensor signal conditioner for resistive bridge sensors. It features an internal 16-bit RISC microcontroller that performs digital compensation for offset, sensitivity, temperature drift, and non-linearity using coefficients stored in on-chip EEPROM. The device supports a supply voltage range of 4.5 V to 5.5 V with a maximum supply current of 5.5 mA. It offers an analog gain of up to 420 and overall gain up to 1680, with a sample rate up to 7.8 kHz. Output options include ratiometric analog voltage (12.4-bit resolution) or ZACwire™ digital interface. It operates from -40°C to +150°C and includes high-voltage protection up to 33V.

Feature Summary

• Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity via internal microcontroller
• High analog gain of 420 suitable for ceramic thick-film-based sensor elements without laser trimming
• Dual output configuration supporting ratiometric analog voltage or ZACwire™ one-wire digital interface
• Automotive qualification with extended operating temperature range up to +150°C

Applications

• Automotive pressure sensors utilizing ceramic thick-film technology
• Industrial resistive bridge sensor signal conditioning
• Applications requiring high-accuracy amplification and correction of strain gauge signals

Procurement Notes

Verify the specific suffix BE1B against official Renesas documentation to confirm package type and tape-and-reel specifications. Confirm availability status as distribution listings may vary. Ensure compatibility with existing calibration tools for EEPROM programming. Check for RoHS compliance details in the latest datasheet revision.

Selection Notes

Select this component when designing systems requiring precise correction of resistive bridge sensors without external trimming. It is suitable for applications needing high gain and wide temperature stability. Consider the ZACwire™ interface if a digital one-wire solution is preferred over analog output. Verify power supply constraints match the 4.5 V to 5.5 V requirement.

Part Context

The ZSSC3138BE1B belongs to the ZSSC313x product family of sensor signal conditioners. This family is optimized for automotive and industrial sensor applications, providing integrated amplification and digital correction capabilities. The BE1B suffix typically denotes a specific packaging variant within this series, sharing core functional characteristics with other members like the ZSSC3138BA1C.

FAQ

What types of sensors is the ZSSC3138BE1B designed for?

It is designed for resistive bridge sensors, particularly ceramic thick-film-based sensor elements and strain gauges.

How does the device handle sensor non-linearity?

An internal 16-bit RISC microcontroller runs a correction algorithm that digitally compensates for sensor non-linearity using coefficients stored in on-chip EEPROM.

What is the maximum operating temperature?

The device supports an operation temperature range as wide as -40°C to +150°C.