ZSSC4171BE3R

ZSSC4171BE3R Features

Differential sensor bridge or voltage source inputsInternal or external temperature sensors, select-able for conditioning of sensor input signals ortemperature outputDigital compensation of offset, gain, and higherorder nonlinearity as well as temperaturecoefficients of measured sensor input signalsOperating temperature range: -40°C to 150°CAccuracy: ±0.25% FSO @ -40°C to 125°CNVM memory for configuration data, user con-figurable measurement and conditioning function,and user-selected data* I2C™ is a trademark of NXP.

ZSSC4171BE3R Brief Description

IDT’s ZSSC416x/ZSSC417x is a family of CMOSintegrated circuits for highly accurate amplificationand sensor-specific correction of differential bridgesensor signals. Featuring a maximum analog pre-amplification in the range of 150 to 200, this productis adjustable to nearly all resistive bridges as well asvoltage source sensor types; e.g., thermocouples.Digital compensation of offset, sensitivity, temper-ature drift, and nonlinearity is accomplished with a16-bit RISC microcontroller. Calibration coefficientsand configuration data are stored in the ZSSC416x/ZSSC417x non-volatile memory (NVM), which isreliable in automotive applications.Measured values can be read via a digital SENT orI2C™* interface. The SENT interface enables trans-mission of sensor data via its fast channel as well assupplementary data via its “slow” Serial Data Mes-sage (SDM) channel using only one output pin. End-of-line calibration is supported via an I2C™ interfaceor via a One-Wire Interface (OWI) through the dataoutput pin (DOUT). The ZSSC416x/ ZSSC417x andthe calibration equipment communicate digitally, sothe noise sensitivity is greatly reduced. Digitalcalibration helps keep assembly cost low as notrimming by external devices or lasers is needed.The ZSSC416x/ZSSC417x is optimized for automo-tive environments by overvoltage and reversepolarity protection circuitry, excellent electromag-netic compatibility, and multiple diagnostic features.