ZSSC3240CI1C

Overview

The ZSSC3240CI1C is a sensor signal conditioner IC from Renesas Electronics Corporation, designed for high-precision amplification and digitization of resistive sensor signals. It features a programmable measurement sequencer that multiplexes between bridge, temperature, or diagnostic measurements. The device provides offset compensation and amplification with a gain factor of up to 540V/V to optimize the ADC input range. It digitizes signals up to 24-bit resolution and performs post-processing via an internal DSP to deliver linearized and temperature-compensated values. Outputs are available through standard digital interfaces, as absolute or ratiometric analog voltage, or industrial current loop.

Feature Summary

• Supports various sensor element configurations including bridge and half-bridge sensors
• Includes on-chip temperature sensor and supports external temperature sensing
• Features advanced 16-bit DAC output with post-calibration options
• Provides self-diagnostic coverage and system safety functions

Applications

• Industrial scales and retail weighing systems
• Process and factory automation pressure, flow, and level sensing
• Medical applications such as blood pressure monitors

Procurement Notes

Verify the specific suffix CI1C against official Renesas documentation to confirm pinout compatibility and electrical characteristics relative to other ZSSC3240 variants. Ensure the selected package matches the target PCB footprint requirements. Confirm RoHS compliance status for the specific manufacturing batch prior to integration into final assemblies.

Selection Notes

Select this component when a 24-bit resolution sensor signal conditioner with both digital and analog output capabilities is required. It is suitable for applications needing extensive calibration flexibility and dual-domain sensor solutions. Consider the ZSSC3241 if additional AFE configuration options or programmable DAC clipping are necessary for the specific design constraints.

Part Context

The ZSSC3240 series represents Renesas' Sensor Signal Conditioner (SSC) portfolio, aimed at simplifying smart sensor development. This family integrates analog front-end processing with digital communication interfaces, reducing the burden on microcontrollers. The ZSSC3240CI1C is part of this lineup, offering best-in-class adaptability for resistive bridge sensors in industrial and consumer applications.

Replacement Considerations

The ZSSC3241 is noted as being 99% backward compatible with the ZSSC3240 series, sharing the same die size and QFN24-pin-out layout. Verify specific EEPROM changes and extended AFE configuration options in the ZSSC3241 datasheet before substituting.