Product Overview
Automotive-Grade Absolute Pressure Sensor Element (Unused NOS)
This silicon pressure sensing element converts absolute pressure into a stable analog voltage for direct use with control electronics. Designed for embedded measurement tasks, it supports calibrated signal conditioning on-chip and interfaces cleanly with ADC inputs in 5 V / 0–5 V systems. A practical tip: maintain clean, dry air paths to preserve long-term output stability.
Product Condition
Unused, New Old Stock. Manufactured stock that has not been placed into service.
Product Overview
The MPX4250A is a monolithic silicon absolute pressure sensor element originally developed for engine manifold pressure measurement. It integrates a piezoresistive sensing diaphragm with on-chip temperature compensation, gain, and offset trimming. The device produces a ratiometric analog voltage proportional to absolute pressure referenced to an internal sealed vacuum cavity.
Key Features
- Absolute pressure measurement referenced to internal vacuum
- Calibrated analog voltage output
- On-chip temperature compensation and trim
- Designed for 5.1 V nominal supply operation
- Operating pressure range centered on 20–250 kPa absolute
- Ratiometric output suitable for direct ADC interfacing
- Fast response time for dynamic pressure changes
Applications
- Automotive manifold absolute pressure sensing
- Engine control and fuel management systems
- Embedded pressure measurement projects
- Laboratory prototyping and evaluation
- General-purpose absolute pressure monitoring
- Educational and development platforms
Frequently Asked Questions
What type of pressure does this sensor measure?
It measures absolute pressure, referenced to an internal sealed vacuum rather than ambient pressure.
Is signal conditioning required externally?
No external amplification is required, as gain and offset trimming are integrated on the sensor.
What output form does the sensor provide?
The device provides a ratiometric analog voltage output proportional to applied pressure.
Where was this sensor commonly used?
It was widely used in automotive engine control systems as a manifold absolute pressure sensor.
You can integrate this element into embedded pressure measurement projects by routing its calibrated analog voltage output directly into an ADC channel on a controller board or test enclosure.
