ZSSC3154 Automotive Sensor Signal Conditioner with Dual Analog Output Datasheet Benefits Brief Description Bridge sensor signal validation for safety The ZSSC3154 is an integrated circuit for highly applications via two antivalent analog outputs or accurate amplification and sensor-specific correction via half-bridge sensor measurement output of a bridge sensor signal. Up to two temperature Simultaneous measurement of sensor signals, sensors can also be read in parallel. including temperature signal for compensation The circuitry provides different configurations of the and for temperature output analog outputs to show two measurement results Efficient use of non-calibrated elements for simultaneously. This also allows generating a com- bridge sensors and temperature sensors without plementary bridge sensor signal, which is often a external trimming components requirement in safety-relevant applications. Single-pass end-of-line calibration algorithm The ZSSC3154 can measure and process two exter- minimizes production costs nal temperature sensors to compensate the temper- Excellent EMC/ESD robustness and AEC-Q100 ature drift of the bridge sensor signal and to output a qualification separate temperature signal. An integrated calibration microcontroller with an on- Available Support chip EEPROM performs the digital compensation of the sensor offset, the sensitivity, the temperature Evaluation Kit drift, and the nonlinearity of a sensor signal. Application Notes The single-pass, digital end-of-line calibration com- Calculation Tools bined with the integrated broken-chip detection sup- ports automatic and highly efficient mass production. Physical Characteristics Supply voltage: 4.5 to 5.5V Features Maximum supply voltage: 7.7V Differential bridge sensor input Input span: 1.8 to 267mV/V Half-bridge sensor or temperature sensor input ADC resolution: 14 bit Digital compensation of offset, gain, nonlinearity, Output resolution: > 12 bit from 10% to 90% and temperature dependency Operating temperature range: -40C to 150C Two analog outputs behavior programmable by Package: QFN32 (5x5mm wettable flank) or die EEPROM configuration Sequential analog output mode provides two measurement values at one output pin ZSSC3154 Basic Circuit On-chip diagnostic and safety features including DFBH VDDA sensor connection diagnostic and broken-chip VTN2 VSSA detection SDA VTN1 2 EEPROM words for arbitrary user data SCL Multiple configurable output options VBR T VDD VDDE VCC VBP AOUT1 AOUT1 VBR B AOUT2 AOUT2 VBN VSSE GND 2016 Integrated Device Technology, Inc. 1 January 22, 2016 ZSSC3154ZSSC3154 Automotive Sensor Signal Conditioner with Dual Analog Output Datasheet ZSSC3154 Block Diagram External Conditioning Coefficients Temperature Sensor 2 External 2 I C* 2 Temperature EEPROM I C* Temperature Gain Offset ADC Sensor 1 Sensor Select Factor Shift Mode Diagnostic Fault Band Mode RAM AOUT2 BAMP MUX PGA ADC CMC DAC AOUT1 BAMP OWI (Digital Analog Front-End AFE Data IO) ROM ZACwire Sensor Conditioning Calculation Internal Bridge Temperature Sensor Interfaces Conditioning Formula Digital Core 2 * I C is a trademark of NXP. Ordering Information Product Sales Code Description Package ZSSC3154BA1B ZSSC3154 Die Temperature Range -40 to 125C Wafer ZSSC3154BA1C ZSSC3154 Die Temperature Range -40 to 125C Sawn on frame ZSSC3154BA3R ZSSC3154 QFN32 (5x5 mm wettable flank) Temperature Range -40 to 125 C Reel ZSSC3154BE3R ZSSC3154 QFN32 (5x5 mm wettable flank) Temperature Range -40 to 150 C Reel ZSSC3154KIT ZSSC3154 SSC Evaluation Kit: Communication Board, SSC Board, Sensor Kit Replacement Board, 5 QFN32 samples (software can be downloaded from the product page www.IDT.com/ZSSC3154) 2016 Integrated Device Technology, Inc. 2 January 22, 2016