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NXP Semiconductors MPXA4115AP
- Part No.:
- MPXA4115AP
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Gull Wing, Side Port
- Datasheet:
-
MPXA4115AP.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 4.8V 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,924
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Product details
Overview
MPXA4115AP from Freescale Semiconductor is an integrated absolute pressure sensor with on-chip signal conditioning, temperature compensation, and factory calibration for barometric and altimeter applications. It delivers a ratiometric 0.2–4.8 V analog output over a 15–115 kPa range, operates from 4.85–5.35 V supply, and achieves ±1.5% full-scale accuracy across 0°C to 85°C - deployed in aviation altimeters, weather stations, and engine control systems.
For engineers reviewing the MPXA4115AP datasheet, MPXA4115AP pinout, MPXA4115AP application, or MPXA4115AP equivalent, key selection criteria include its unibody ported package (Case 867B-04), 1.0 ms response time, media-resistant fluorosilicone gel isolation, and compatibility with microcontroller A/D interfaces requiring stable, calibrated analog pressure signals.
Technical Context
The MPXA4115AP integrates a silicon piezoresistive sensing element referenced to sealed vacuum, bipolar op amp circuitry, and thin-film resistor networks for gain and offset trimming. Its transfer function is VOUT = VS × (0.009 × P − 0.095), where P is absolute pressure in kPa and VS is supply voltage.
Temperature compensation is implemented via on-chip circuitry covering −40°C to +125°C operating range, with error multipliers applied per temperature band (×1 at 0–85°C, ×3 at −40°C and +125°C). The device requires external decoupling (1.0 μF + 0.01 μF + 470 pF) to meet specified electrical performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - covers sea-level to ~10,000 m altitude for barometric/altimeter use. |
| Output Voltage | 0.2–4.8 V ratiometric - scales linearly with supply voltage; enables direct ADC interfacing without external scaling. |
| Accuracy | ±1.5% of full-scale span (VFSS) - includes linearity, temp hysteresis, pressure hysteresis, TcSpan, and TcOffset over 0–85°C. |
| Response Time | 1.0 ms (10–90%) - supports dynamic pressure monitoring in fast-cycling engine or drone flight control systems. |
| Supply Voltage | 4.85–5.35 V - compatible with standard 5 V logic rails; ratiometric behavior minimizes supply sensitivity. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive and industrial environments. |
| Warm-up Time | 20 ms - ensures rapid stabilization after power-on for time-critical measurement sequences. |
Pinout & Package
MPXA4115AP uses the Case 867B-04 unibody ported package: epoxy encapsulated, stainless steel cap on P1 (pressure) side, ported design for direct media access, and 6-pin through-hole mounting. Pin 1 is VOUT, Pin 2 is GND, Pin 3 is VCC; Pins 4–6 are no-connects.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Analog output signal - provides calibrated, temperature-compensated voltage proportional to absolute pressure. |
| 2 | GND | Analog ground reference - must be connected to system ground with low-impedance path to minimize noise coupling. |
| 3 | VCC | Positive supply input - accepts 4.85–5.35 V; output scales ratiometrically with this voltage. |
| 4, 5, 6 | No Connect | Internally unused - must remain unconnected; no pull-up/down or routing required. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip signal conditioning | Eliminates need for external op amps or amplification stages - reduces BOM count and layout area. |
| Factory-calibrated offset & span | Enables plug-and-play integration - no system-level calibration required for typical altimeter/barometer accuracy targets. |
| Media-resistant fluorosilicone gel | Protects die and wire bonds from moisture and contaminants while transmitting pressure - suitable for outdoor and automotive under-hood use. |
| Unibody ported mechanical design | Provides robust, leak-tight pressure interface with integrated port - simplifies mechanical housing design vs. separate sensor + port assembly. |
| Microprocessor interface readiness | Delivers high-level analog output compatible with 10-bit+ MCU ADCs - avoids need for precision external ADC or signal chain components. |
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 signal. Use Value: ±1.5% VFSS accuracy and −40°C to +125°C operation ensure reliable readings across flight envelopes and environmental conditions. | Use Scenario: Real-time barometric pressure logging in outdoor environmental monitoring stations. IC Role / Device Role / Timing Role: Calibrated analog pressure sensor feeding data to microcontroller-based telemetry units. Use Value: Ratiometric output and built-in temperature compensation eliminate need for external calibration routines or lookup tables. |
| Engine Control Unit | Industrial Altitude Compensation |
Use Scenario: Intake manifold absolute pressure (MAP) sensing for fuel injection timing and air mass calculation. IC Role / Device Role / Timing Role: Primary pressure input for closed-loop engine management algorithms. Use Value: 1.0 ms response time and 15–115 kPa range match transient engine load requirements and sea-level-to-high-altitude operation. | Use Scenario: Compensating sensor drift in precision industrial weighing or gas flow systems based on local barometric pressure. IC Role / Device Role / Timing Role: Reference-grade barometric sensor enabling real-time ambient pressure correction. Use Value: Factory-trimmed offset and span reduce system-level calibration burden and improve long-term measurement stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX4115A | Same die and signal chain, but unported Case 867-08 package - no integrated pressure port. | Requires external pressure conduit or hose connection; less suitable for compact, direct-mount designs. | Select MPX4115A only when mechanical integration allows external porting and board space permits larger footprint. |
| MPXAZ4115A6U | Small-outline surface-mount package (Case 482), media-resistant gel variant, same 15–115 kPa range and accuracy. | Designed for automated SMT assembly and harsh-media environments; lacks integrated port - requires external porting solution. | Choose MPXAZ4115A6U for high-volume PCB assembly or where fluorosilicone gel compatibility with aggressive media is critical. |
Compared with MPXA4115AP, MPX4115A offers identical electrical performance but requires external pressure interface, while MPXAZ4115A6U enables SMT placement and enhanced media resistance at the cost of port integration - MPXA4115AP remains optimal for through-hole, port-integrated, calibrated barometric sensing.
Availability
MPXA4115AP is available at Aetrix Electronics and suitable for aviation altimeters, weather reporting devices, and engine control systems requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MPXA4115AP 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) is a global semiconductor company specializing in embedded processing, sensors, and analog solutions for automotive, industrial, and consumer markets.
The MPXA4115AP belongs to Freescale's integrated pressure sensor product line, designed specifically for high-reliability barometric and altimeter applications requiring factory-calibrated, temperature-compensated analog output in ruggedized packaging.
FAQ
What is the pressure media compatibility of the MPXA4115AP?
The MPXA4115AP uses standard fluorosilicone gel and is qualified for dry air as the pressure medium. Freescale specifies that media other than dry air may adversely affect long-term reliability and performance. For non-air media, consult NXP's technical documentation or contact application engineering - the MPXA4115AP is not rated for liquid, corrosive, or oil-based media without validation.
Does the MPXA4115AP require external calibration during system integration?
No, the MPXA4115AP is fully factory-calibrated for offset, span, and temperature compensation across 0°C to 85°C. Its ±1.5% VFSS accuracy specification applies directly out-of-box, eliminating the need for system-level calibration in most altimeter and barometer applications - though final verification against known pressure standards is recommended for safety-critical deployments.
What is the meaning of "ratiometric output" for the MPXA4115AP?
Ratiometric output means the MPXA4115AP's 0.2–4.8 V analog output scales proportionally with its supply voltage (VS). If VS varies within 4.85–5.35 V, the output voltage changes linearly - enabling accurate measurements even with modest supply regulation, especially when the same VS powers both the MPXA4115AP and the ADC reference.
Can the MPXA4115AP be used in automotive under-hood applications?
Yes - the MPXA4115AP is rated for −40°C to +125°C operating temperature and qualified for automotive-grade reliability. Its epoxy unibody construction, stainless steel cap, and fluorosilicone gel provide robustness against thermal cycling and vibration. However, it is not AEC-Q200 qualified; for production automotive ECUs, verify compliance with specific OEM requirements before deployment.
What decoupling network is required for stable operation of the MPXA4115AP?
Freescale specifies a mandatory decoupling network: 1.0 μF tantalum (or ceramic), 0.01 μF ceramic, and 470 pF ceramic capacitors placed between VCC and GND, as shown in Figure 3 of the datasheet. Omitting or reducing these components risks violating electrical specifications including accuracy, noise immunity, and response time - the MPXA4115AP will not meet its published performance without this network.
MPXA4115AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA4115A
- Package/Case:
- 8-SMD, Gull Wing, Side Port
- 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:
- ±1.5%
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- Male - 0.13" (3.17mm) Tube
- Port Style:
- Barbless
- Features:
- Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
MPXA4115AP FAQ
1.How can I place an order for MPXA4115AP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA4115AP 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 MPXA4115AP reliable?
The price and inventory of MPXA4115AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA4115AP is usually 5 days.
3.What payment methods are accepted for MPXA4115AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA4115AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA4115AP?
MPXA4115AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA4115AP 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 MPXA4115AP?
For technical support, including MPXA4115AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA4115AP requirements.
6.How does Aetrix verify that MPXA4115AP is sourced from the original manufacturer or authorized distributors?
All MPXA4115AP 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 MPXA4115AP meets industry standards.
7.What is the process for return or replacement of MPXA4115AP?
All MPXA4115AP units undergo pre-shipment inspection (PSI). If there is an issue with MPXA4115AP, 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 MPXA4115AP part is unused and in its original packaging.
Return procedure for MPXA4115AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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