The ZSSC4132 is member of the Renesas family of CMOS integrated circuits for highly accurate amplification and sensor-specific correction of differential bridge sensor signals. Featuring a maximum analog pre-amplification in the range of 150 to 200, the ZSSC4132 is adjustable to nearly all resistive bridges as well as voltage-source sensor types.
Digital compensation of offset, sensitivity, temperature drift, and nonlinearity is accomplished by a 16-bit RISC microcontroller. Calibration coefficients and configuration data are stored in the ZSSC4132 non-volatile memory (NVM), which is reliable in auto-motive applications.
Measured values are provided via a LIN interface according to the LIN Specification Package 2.2A. The LIN interface enables trans-mission of sensor data as well as transmission of supplementary data. End-of-line calibration is also supported through this output pin based on the LIN protocol. The ZSSC4132 and the calibration equipment communicate digitally, so the noise sensitivity is greatly reduced. Digital calibration helps keep assembly costs low as no trimming by external devices or lasers is needed.
The ZSSC4132 is optimized for automotive environments by overvoltage and reverse-polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.
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A brief introduction and overview of IDT's sensor signal conditioner evaluation kits. Evaluation kits generally consist of three parts: a communication interface board, a device board, and a sensor simulator board - all connected together. A sophisticated software GUI accompanies the kit, enabling an engineer to learn how to use the part rapidly, do quick prototyping, and practice calibrations.
Presented by David Grice, applications engineer at IDT. For more information about IDT's sensor signal conditioner products, visit https://www.idt.com/ssc