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NXP Semiconductors MPXAZ4115A6U
- Part No.:
- MPXAZ4115A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
MPXAZ4115A6U.pdf
- Description:
- SENSOR 16.68PSIA 4.8V 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,634
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Product details
Overview
MPXAZ4115A6U from Freescale Semiconductor (formerly Motorola) is a monolithic, signal-conditioned, absolute pressure sensor with piezoresistive sensing element and on-chip bipolar op-amp circuitry. It delivers a ratiometric 0.2–4.8 V analog output over 15–115 kPa (2.2–16.7 psi), features ±1.5% full-scale accuracy from 0° to 85°C, and operates across –40° to +125°C. It is used in engine control systems for manifold absolute pressure (MAP) sensing.
For engineers reviewing the MPXAZ4115A6U datasheet, MPXAZ4115A6U pinout, MPXAZ4115A6U application, or MPXAZ4115A6U equivalent, key selection considerations include its absolute pressure range, ratiometric 5.1 V supply operation, thermoplastic PPS surface-mount package (Case 482), and integrated temperature compensation without external circuitry.
Technical Context
The MPXAZ4115A6U integrates micromachined silicon diaphragm, thin-film resistor networks, and bipolar op-amp signal conditioning on a single die. Its transfer function is Vout = VS × (0.009 × P – 0.095), with ratiometric response to supply voltage (VS = 5.1 ± 0.25 Vdc) and linear temperature error band from –40°C to +125°C.
It employs gel die coating and durable PPS packaging for media resistance against automotive fluids and high humidity. Pin configuration isolates unused terminals (pins 1, 5–8), with only pins 2 (VS), 3 (GND), and 4 (VOUT) forming the functional 3-terminal interface for microcontroller ADC interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute; supports MAP sensing in gasoline and diesel intake manifolds. |
| Output Voltage | 0.2–4.8 V ratiometric; directly interfaces 5 V ADCs without level-shifting or amplification. |
| Supply Voltage | 4.85–5.35 Vdc; stable operation within standard 5 V rail tolerances. |
| Accuracy | ±1.5% of full-scale span (VFSS); includes linearity, hysteresis, TcOffset, and TcSpan errors. |
| Operating Temp | –40° to +125°C; qualified for under-hood automotive environments. |
| Response Time | 1.0 ms (10%–90%); suitable for dynamic pressure monitoring in combustion cycles. |
| Sensitivity | 45.9 mV/kPa; enables precise low-pressure resolution down to ~0.22 kPa per LSB (12-bit ADC). |
Pinout & Package
Durable thermoplastic (PPS) surface-mount package, Case 482 (8-pin SOIC footprint), with pin 1 identified by notch. Pins 1, 5, 6, 7, and 8 are unconnected (N/C) and must remain floating - only pins 2, 3, and 4 are electrically active.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 | VS (Supply Voltage) | 5.1 V excitation input; ratiometric reference for output scaling and internal compensation. |
| Pin 3 | GND | Analog ground reference for both supply and output; requires low-impedance connection to system AGND. |
| Pin 4 | VOUT | Analog output delivering 0.2–4.8 V proportional to absolute pressure; requires decoupling per Figure 3. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated from –40° to +125°C; eliminates need for external calibration or software correction tables. |
| Media-resistant packaging | Gel-coated die + PPS housing withstands exposure to engine oil, coolant, brake fluid, and >95% RH. |
| Ratiometric output | Output scales linearly with supply voltage variation; rejects common-mode noise in noisy 5 V systems. |
| High reliability monolithic construction | No wire bonds exposed to environment; fully integrated signal chain reduces failure modes vs hybrid sensors. |
Applications
| Engine Control Unit (ECU) | Aviation Altimeters |
|---|---|
|
Use Scenario: Measuring intake manifold absolute pressure for fuel injection timing and air-fuel ratio calculation in gasoline/diesel engines. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary load signal to ECU microcontroller ADC. Use Value: ±1.5% VFSS accuracy ensures consistent torque delivery and emissions compliance across ambient and under-hood temperatures. |
Use Scenario: Detecting atmospheric pressure changes for altitude calculation in small aircraft and UAVs. IC Role / Device Role / Timing Role: Primary absolute pressure sensor feeding barometric data to flight controller's Kalman filter. Use Value: Stable 0.2–4.8 V output and –40° to +125°C operation enable reliable altitude hold during rapid thermal transients at altitude. |
| Industrial Process Monitoring | Weather Stations |
|
Use Scenario: Monitoring sealed vessel pressure in HVAC chillers or pneumatic control systems. IC Role / Device Role / Timing Role: Standalone analog pressure monitor interfaced to PLC analog input module. Use Value: 1 ms response time and media resistance allow real-time detection of refrigerant leaks or valve failures without sensor degradation. |
Use Scenario: Reporting local barometric pressure for hyperlocal weather forecasting and storm tracking. IC Role / Device Role / Timing Role: Low-power absolute pressure node in battery-operated environmental sensor network. Use Value: 7–10 mA supply current and stable offset (<±0.5% VFSS drift after 1000 cycles) ensure multi-year field deployment accuracy. |
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 range (15–115 kPa same), but higher full-scale output (0.2–4.7 V) and ±2.0% accuracy; uses Case 867 package. | Designed for industrial instrumentation; lacks automotive media resistance certification. | Prefer MPXAZ4115A6U where engine fluid exposure or AEC-Q200 alignment is required. |
| SPX3115 | Same pressure range and accuracy, but digital I²C output; requires microcontroller firmware support. | Targets smart sensor nodes needing self-diagnosis or multi-sensor fusion; no analog compatibility. | Choose MPXAZ4115A6U when legacy 5 V analog ADC infrastructure exists and firmware overhead must be minimized. |
Compared with MPX5114A and SPX3115, the MPXAZ4115A6U uniquely combines automotive-grade media resistance, analog simplicity, and validated –40° to +125°C performance in a cost-optimized SOP package - making it optimal for retrofit ECU designs and ruggedized environmental monitors where analog integration and reliability are prioritized over digital features or extended accuracy.
Availability
MPXAZ4115A6U is available at Aetrix Electronics and suitable for engine control units, aviation altimeters, and industrial process monitoring requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for MPXAZ4115A6U 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 analog and mixed-signal ICs for automotive, industrial, and consumer applications.
The MPXAZ4115A6U belongs to Freescale's MPXAZ series of monolithic absolute pressure sensors, engineered specifically for high-reliability, cost-sensitive analog pressure measurement in harsh environments including under-hood automotive and outdoor instrumentation.
FAQ
What is the operating pressure range of the MPXAZ4115A6U?
The MPXAZ4115A6U has a specified absolute pressure range of 15 to 115 kPa (2.2 to 16.7 psi). This range is optimized for manifold absolute pressure (MAP) sensing in internal combustion engines and barometric pressure measurement in altimetry and weather applications. Operation outside this range causes output saturation, and maximum pressure rating is 400 kPa for mechanical survival only.
Does the MPXAZ4115A6U require external temperature compensation?
No, the MPXAZ4115A6U includes factory-trimmed, on-chip temperature compensation covering –40° to +125°C. Its internal bipolar op-amp and thin-film resistor network correct for TcOffset and TcSpan errors, eliminating the need for external thermistors, lookup tables, or calibration firmware - a key advantage over uncompensated bridge sensors.
What is the supply voltage requirement for the MPXAZ4115A6U?
The MPXAZ4115A6U operates with a nominal supply voltage of 5.1 Vdc, specified from 4.85 Vdc to 5.35 Vdc. Its output is ratiometric, meaning VOUT scales linearly with VS - enabling robust performance in systems with ±5% 5 V rail variation and simplifying noise rejection in electrically noisy environments like engine bays.
Which pins on the MPXAZ4115A6U are electrically active?
Only three pins are functional on the MPXAZ4115A6U: Pin 2 (VS), Pin 3 (GND), and Pin 4 (VOUT). Pins 1, 5, 6, 7, and 8 are not connected internally and must remain unconnected - grounding or driving them may cause measurement errors or damage. Pin 1 is identified by the package notch.
Is the MPXAZ4115A6U compatible with common automotive fluids?
Yes, the MPXAZ4115A6U features a gel die coat and durable PPS (polyphenylene sulfide) package that provide proven resistance to engine oil, coolant, brake fluid, and high-humidity environments (>95% RH). This media compatibility is validated per Freescale's automotive qualification standards and makes the MPXAZ4115A6U suitable for direct mounting in under-hood locations.
MPXAZ4115A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXAZ4115A
- Package/Case:
- 8-SMD Module
- Packaging:
- Tube
- 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:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- SMD (SMT) Tab
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MPXAZ4115A6U FAQ
1.How can I place an order for MPXAZ4115A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXAZ4115A6U 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 MPXAZ4115A6U reliable?
The price and inventory of MPXAZ4115A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXAZ4115A6U is usually 5 days.
3.What payment methods are accepted for MPXAZ4115A6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXAZ4115A6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXAZ4115A6U?
MPXAZ4115A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXAZ4115A6U 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 MPXAZ4115A6U?
For technical support, including MPXAZ4115A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXAZ4115A6U requirements.
6.How does Aetrix verify that MPXAZ4115A6U is sourced from the original manufacturer or authorized distributors?
All MPXAZ4115A6U 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 MPXAZ4115A6U meets industry standards.
7.What is the process for return or replacement of MPXAZ4115A6U?
All MPXAZ4115A6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXAZ4115A6U, 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 MPXAZ4115A6U part is unused and in its original packaging.
Return procedure for MPXAZ4115A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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