MLX90825GXP-DAD-400-SP

Pressure Sensors Transducers Overview

The MLX90825GXP-DAD-400-SP is a PCB-less relative MEMS pressure sensor IC from Melexis, featuring SENT digital output. It measures differential pressure spans from 2.9 PSI to 11.6 PSI (20 kPa to 80 kPa). The device offers 12-bit resolution and maintains an accuracy of ±0.5% full scale over its lifespan. Operating supply voltage is 5 V, with an operating temperature range of -40°C to +160°C. It utilizes SMP-7 packaging and includes a pre-calibrated NTC thermistor input for temperature compensation without end-of-line calibration.

Pressure Sensors Transducers Feature Summary

• PCB-less packaged design ensuring high output stability and excellent EMC performance
• SENT protocol digital interface providing outstanding initial accuracy via DSP-based signal processing
• Factory calibrated with integrated NTC thermistor input eliminating need for system-level calibration
• ASIL B SEooC compliant safety architecture suitable for critical automotive applications

Pressure Sensors Transducers Applications

• Fuel vapor measurement systems
• Crankcase ventilation monitoring
• Exhaust gas recirculation (EGR) control
• Gasoline or diesel particulate filter (GPF/DPF) pressure sensing
• Secondary Air Injection (SAI) diagnostics

Pressure Sensors Transducers Procurement Notes

Verify the specific suffix DAD-400-SP against official Melexis documentation to confirm the exact pressure span and package variant. Ensure compatibility with SENT interface requirements in the target system design. Confirm that the SMP-7 package dimensions align with the PCB layout constraints. Check for any specific handling instructions related to the PCB-less MEMS structure during assembly.

Pressure Sensors Transducers Selection Notes

Select this component when a compact, PCB-less solution with SENT output is required for automotive pressure sensing. The ±0.5% FS accuracy over extended mission profiles makes it suitable for precision applications. Consider the -40°C to +160°C operating range for harsh environment suitability. The integrated NTC input simplifies thermal management in the overall system design compared to discrete solutions.

Pressure Sensors Transducers Part Context

This part belongs to the MLX90825 series of relative pressure sensors designed for automotive use. It represents a packaged, factory-calibrated solution that integrates a MEMS element with a CMOS interface chip. The series supports various pressure spans and output configurations, adhering to ISO 26262 safety standards for ASIL B compliance in safety-critical contexts.

Pressure Sensors Transducers Replacement Considerations

Direct substitutes within the MLX90825 family include variants with different pressure spans such as MLX90825GXP-DAD-302-SP or MLX90825GXP-DAD-500-SP, provided the pressure range matches application needs. Verify pinout and electrical characteristics before substitution. No other manufacturer parts are confirmed as direct replacements based on available public data.