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NXP Semiconductors MPX4115AP
- Part No.:
- MPX4115AP
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 6-SIP Module
- Datasheet:
-
MPX4115AP.pdf
- Description:
- SENSOR 16.68PSIA 0.19" 4.8V
- Quantity:
- Payment:
- Shipping:
Inventory:4,811
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Product details
Overview
MPX4115AP from Freescale Semiconductor is a media-resistant, integrated silicon absolute pressure sensor designed for manifold, altimeter, and barometer applications. It delivers a ratiometric 0.2–4.8 V analog output over a 15–115 kPa range, features on-chip temperature compensation (–40°C to +125°C), ±1.5% full-scale accuracy (0°–85°C), and operates from a 4.85–5.35 V supply with 7 mA typical current draw.
For engineers reviewing the MPX4115AP datasheet, MPX4115AP pinout, MPX4115AP application, or MPX4115AP equivalent, this sensor is selected for precision atmospheric pressure sensing in aviation altimeters, weather stations, and engine control systems where stable offset, low hysteresis, and media-resistant gel encapsulation are critical design requirements.
Technical Context
The MPX4115AP integrates a piezoresistive silicon sensing element with on-chip bipolar op-amp signal conditioning, thin-film resistor networks for gain/offset trimming, and temperature compensation circuitry. Its sealed vacuum reference enables true absolute pressure measurement, and its ratiometric output scales linearly with supply voltage (VOUT = VS × (0.009 × P – 0.095)).
Designed for unibody epoxy packaging (Case 867B-04), the device uses fluorosilicone gel to isolate the die while transmitting pressure-enabling compatibility with dry air media and supporting long-term reliability under thermal cycling and pulsed pressure stress (±0.5% VFSS offset stability after 1000 hrs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa (2.2–16.7 psi): supports barometric pressure monitoring at sea level and aircraft altimetry up to ~10,000 m. |
| Output Voltage | 0.2–4.8 V (ratiometric): directly interfaces with 5 V ADCs without external scaling; output spans 4.6 V full-scale span. |
| Accuracy | ±1.5% VFSS (0°–85°C): includes linearity, temp hysteresis, pressure hysteresis, TcSpan, and TcOffset-enables calibrated altitude resolution <15 m. |
| Supply Voltage | 4.85–5.35 V: compatible with standard 5 V rail; ratiometric behavior maintains accuracy across supply variation. |
| Response Time | 1.0 ms (10–90%): suitable for dynamic pressure acquisition in engine manifolds and fast-response environmental logging. |
| Operating Temp | –40°C to +125°C: supports under-hood automotive and industrial outdoor deployment without external thermal management. |
| Offset Stability | ±0.5% VFSS after 1000 hrs pulsed pressure/thermal cycling: ensures long-term calibration integrity in fielded instrumentation. |
Pinout & Package
MPX4115AP uses the unibody epoxy package (Case 867B-04), featuring a ported configuration with pressure-side identification on the marked surface. The 6-pin SIP layout supports direct PCB mounting with no heatsink required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Analog output signal: 0.2–4.8 V ratiometric voltage proportional to absolute pressure; requires 470 pF filter capacitor per Figure 3. |
| 2 | GND | Analog ground reference: must be connected to system AGND with low-impedance path to minimize noise coupling. |
| 3 | VS | Supply input: accepts 4.85–5.35 V; requires 1.0 μF + 0.01 μF decoupling per recommended circuit (Figure 3). |
| 4 | No Connect | Internally unused: left floating; no PCB trace or solder connection required. |
| 5 | No Connect | Internally unused: left floating; no PCB trace or solder connection required. |
| 6 | No Connect | Internally unused: left floating; no PCB trace or solder connection required. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Compensates offset and span drift across –40°C to +125°C, eliminating need for external thermistor or digital correction in embedded systems. |
| Media-resistant fluorosilicone gel | Protects wire bonds and die from moisture and particulates while transmitting pressure-validated for dry air use with documented long-term reliability. |
| Integrated signal conditioning | Includes bipolar op-amp stages and thin-film resistor networks for factory-trimmed gain/offset, delivering high-level analog output without external amplification. |
| Sealed vacuum reference cavity | Enables true absolute pressure measurement referenced to hard vacuum-critical for altimetry and barometric trend analysis. |
| Ratiometric output architecture | Output scales linearly with supply voltage, allowing direct interface to microcontroller ADCs powered from the same rail without ratio-independent error accumulation. |
Applications
| Aviation Altimeter | Weather Station |
|---|---|
Use Scenario: Measuring atmospheric pressure to compute aircraft altitude in certified general aviation systems. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary altitude reference via calibrated 15–115 kPa output. Use Value: ±1.5% VFSS accuracy and ±0.5% offset stability ensure repeatable altitude readings over 1000+ flight hours without recalibration. | Use Scenario: Real-time barometric pressure logging in outdoor environmental monitoring stations. IC Role / Device Role / Timing Role: Core atmospheric pressure sensor interfaced to low-power MCU for hourly pressure trend reporting. Use Value: –40°C to +125°C operating range and media-resistant gel enable reliable operation in unheated enclosures across seasonal extremes. |
| Engine Manifold Pressure | Industrial Process Control |
Use Scenario: Monitoring intake manifold absolute pressure (MAP) in gasoline and diesel engine control units. IC Role / Device Role / Timing Role: Primary MAP sensor feeding real-time pressure data to ECU for fuel injection timing and air-fuel ratio calculation. Use Value: 1 ms response time captures transient pressure events during throttle snap tests; ratiometric output simplifies ADC integration with 5 V MCU rails. | Use Scenario: Closed-loop pressure regulation in HVAC duct static pressure monitoring and cleanroom differential pressure control. IC Role / Device Role / Timing Role: Absolute reference sensor in feedback loop for PID-controlled blower systems. Use Value: Factory-calibrated 0.2–4.8 V output eliminates need for system-level calibration; unibody epoxy construction withstands vibration and thermal shock in industrial cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5114A | Wider 15–115 kPa range but lower 2.5% VFSS accuracy; same Case 867 package; no media-resistant gel option. | Less suited for aviation-grade altimetry due to higher error budget; acceptable for cost-sensitive industrial barometers. | Select MPX5114A only if ±2.5% accuracy suffices and media resistance is not required. |
| MPXV7025DP | Differential output (0.2–4.8 V), dual-port, SOIC-8 package; ±1% VFSS accuracy; operates from 4.75–5.25 V. | Requires differential ADC or instrumentation amplifier; intended for differential pressure (e.g., flow) not absolute pressure. | Not a functional substitute for MPX4115AP's absolute reference; choose only for differential sensing architectures. |
Compared with MPX5114A and MPXV7025DP, the MPX4115AP uniquely combines media-resistant gel, ±1.5% VFSS accuracy, and absolute vacuum-referenced output in a ported unibody package-making it the only option among the three qualified for certified altimeter and harsh-environment barometer use.
Availability
MPX4115AP is available at Aetrix Electronics and suitable for aviation altimeters, weather stations, and engine control units requiring stable component supply, long-lifecycle support, and traceable sourcing of legacy Freescale pressure sensors.
Supply support for MPX4115AP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors and analog/mixed-signal ICs, specializing in automotive, industrial, and consumer applications.
The MPX4115AP belongs to Freescale's MPX4115A series of integrated absolute pressure sensors-designed specifically for high-reliability barometric and altimetric applications demanding on-chip signal conditioning, temperature compensation, and media-resistant packaging.
FAQ
What is the pressure range and output voltage specification of the MPX4115AP?
The MPX4115AP has a specified absolute pressure range of 15 to 115 kPa (2.2 to 16.7 psi) and produces a ratiometric analog output from 0.2 V to 4.8 V at VS = 5.1 V. This corresponds to a full-scale span of 4.521–4.659 V, with output scaling linearly per the transfer function VOUT = VS × (0.009 × P – 0.095). The MPX4115AP's output is optimized for direct interface to 5 V microcontroller ADCs.
Is the MPX4115AP pin-compatible with other MPX4115A-series variants like MPX4115AS or MPX4115A?
No-the MPX4115AP uses Case 867B-04 (ported unibody), while MPX4115A uses Case 867-08 (basic unibody) and MPX4115AS uses Case 867E-03 (stove-pipe port). Though all share identical 6-pin pinout (VOUT/GND/VS/NC/NC/NC), mechanical port orientation and PCB footprint differ. The MPX4115AP requires its specific land pattern per Issue G drawings; substitution without mechanical validation is not recommended.
Does the MPX4115AP require external calibration or temperature compensation circuitry?
No-the MPX4115AP integrates factory-calibrated thin-film resistor networks and on-chip bipolar op-amp circuitry for temperature-compensated signal conditioning. It delivers a fully conditioned 0.2–4.8 V output across –40°C to +125°C without external components beyond the recommended decoupling network (1.0 μF + 0.01 μF on VS, 470 pF on VOUT). The MPX4115AP is shipped calibrated and ready for system-level integration.
What media compatibility does the MPX4115AP support, and what is the role of the fluorosilicone gel?
The MPX4115AP uses standard fluorosilicone gel (not media-resistant gel) to protect the silicon die and wire bonds from environmental exposure while transmitting pressure. It is qualified for dry air media only; contact NXP for compatibility testing with other gases or vapors. The gel provides long-term reliability under thermal cycling and pulsed pressure stress, contributing to the MPX4115AP's ±0.5% VFSS offset stability after 1000 hours of accelerated life testing.
Can the MPX4115AP be used in automotive under-hood applications?
Yes-the MPX4115AP is rated for –40°C to +125°C operating temperature and features robust epoxy unibody construction. Its 15–115 kPa range and 1 ms response time make it suitable for manifold absolute pressure (MAP) sensing in engine control units. However, it must be installed with the pressure port exposed to intake manifold air and shielded from oil mist, coolant spray, or direct thermal radiation per Freescale's application guidance for the MPX4115AP.
MPX4115AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX4115A
- Package/Case:
- 6-SIP Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.18PSI ~ 16.68PSI (15kPa ~ 115kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.2 V ~ 4.8 V
- Accuracy:
- -
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- Male - 0.19" (4.93mm) Tube
- Port Style:
- Barbed
- Features:
- Temperature Compensated
- Termination Style:
- PC Pin
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
MPX4115AP FAQ
1.How can I place an order for MPX4115AP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX4115AP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPX4115AP reliable?
The price and inventory of MPX4115AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX4115AP is usually 5 days.
3.What payment methods are accepted for MPX4115AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX4115AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX4115AP?
MPX4115AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX4115AP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPX4115AP?
For technical support, including MPX4115AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX4115AP requirements.
6.How does Aetrix verify that MPX4115AP is sourced from the original manufacturer or authorized distributors?
All MPX4115AP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPX4115AP meets industry standards.
7.What is the process for return or replacement of MPX4115AP?
All MPX4115AP units undergo pre-shipment inspection (PSI). If there is an issue with MPX4115AP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPX4115AP part is unused and in its original packaging.
Return procedure for MPX4115AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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