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NXP Semiconductors MPXAZ4115AC6U
- Part No.:
- MPXAZ4115AC6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Gull Wing, Top Port
- Datasheet:
-
MPXAZ4115AC6U.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 4.8V
- Quantity:
- Payment:
- Shipping:
Inventory:3,379
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Product details
Overview
MPXAZ4115AC6U 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 range, features ±1.5% full-scale accuracy from 0° to 85°C, and operates across –40° to +125°C with integrated temperature compensation - used in engine control, aviation altimeters, and industrial pressure monitoring.
For engineers reviewing the MPXAZ4115AC6U datasheet, MPXAZ4115AC6U pinout, MPXAZ4115AC6U application, or MPXAZ4115AC6U equivalent, key selection considerations include its axial-port SOP-8 package, 5.1 V supply requirement, 1 ms response time, ratiometric transfer function (Vout = VS × (0.009 × P – 0.095)), and media resistance for automotive and humid environments.
Technical Context
The MPXAZ4115AC6U integrates micromachined silicon diaphragm, thin-film resistor networks, and bipolar op-amp signal conditioning on a single die. Its architecture provides factory-trimmed offset and span, eliminating external calibration for many embedded systems.
It implements absolute pressure sensing via sealed reference cavity and uses gel die coat + PPS thermoplastic package to resist humidity and common automotive fluids. The device is ratiometric: output scales linearly with supply voltage (4.85–5.35 V), enabling direct interface with microcontroller ADCs without separate voltage references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa (2.2–16.7 psi); supports barometric and low-pressure industrial measurement. |
| Output Voltage | 0.2–4.8 V DC at VS = 5.1 V; ratiometric, simplifies ADC scaling in microcontroller systems. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0°–85°C; includes linearity, hysteresis, TcOffset, and TcSpan errors. |
| Response Time | 1.0 ms (10% to 90%); enables real-time pressure tracking in dynamic engine or weather applications. |
| Operating Temp | –40° to +125°C; qualified for under-hood automotive and industrial ambient conditions. |
| Supply Current | 7.0 mA typical; low quiescent draw suitable for battery-backed or power-constrained systems. |
| Sensitivity | 45.9 mV/kPa; high gain reduces need for external amplification in signal chain. |
Pinout & Package
MPXAZ4115AC6U uses Case 482A - an 8-pin small-outline package (SOP) with axial pressure port and notch-marked Pin 1. Pins 1, 5, 6, 7, and 8 are unconnected (N/C); only Pins 2 (VS), 3 (GND), and 4 (VOUT) are functional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 | Supply Voltage (VS) | 5.1 V ±0.25 V DC input; powers internal op-amp and sensing bridge; requires decoupling per Figure 3. |
| Pin 3 | Ground (GND) | Analog ground reference for signal conditioning and output stage; must be low-impedance return path. |
| Pin 4 | Output (VOUT) | Analog voltage output proportional to absolute pressure; directly interfaces to 10–12-bit microcontroller ADC inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature compensation | Factory-trimmed over –40° to +125°C; eliminates need for external thermistor or software correction in most applications. |
| Gel die coat + PPS package | Provides robust barrier against high humidity and automotive fluids (e.g., oil, coolant, brake fluid) without external sealing. |
| Ratiometric output | Output scales with supply voltage; enables use of same VS as MCU's ADC reference, removing voltage reference IC. |
| Monolithic silicon construction | Single-die integration of sensing element and signal conditioning ensures matched thermal behavior and long-term stability. |
Applications
| Engine Control Unit (ECU) | Aviation Altimeter |
|---|---|
Use Scenario: Measures intake manifold absolute pressure (MAP) for fuel injection timing and air-fuel ratio calculation in gasoline engines. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary load-sensing input to ECU microcontroller. Use Value: High media resistance and –40° to +125°C operation ensure reliability in under-hood environments; ±1.5% accuracy supports precise combustion control. |
Use Scenario: Senses atmospheric pressure for altitude calculation in portable or UAV-based altimeters. IC Role / Device Role / Timing Role: Primary absolute pressure sensor feeding calibrated analog voltage to ADC in flight controller. Use Value: 15–115 kPa range covers sea-level to ~15,000 ft; 1 ms response enables rapid altitude updates during ascent/descent. |
| Industrial Process Monitor | Weather Station Sensor |
Use Scenario: Monitors compressed air line pressure or HVAC duct static pressure in factory automation systems. IC Role / Device Role / Timing Role: Standalone analog pressure transmitter interfaced to PLC analog input module. Use Value: Durable PPS package withstands shop-floor contaminants; ratiometric output simplifies integration with 24 V-powered I/O systems using voltage dividers. |
Use Scenario: Measures barometric pressure for local weather forecasting and storm detection in outdoor environmental stations. IC Role / Device Role / Timing Role: Low-drift absolute pressure sensor with long-term stability for unattended field deployment. Use Value: ±0.5% VFSS offset stability after 1000 pressure/temperature cycles ensures multi-year calibration integrity in remote installations. |
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 pressure range (15–115 kPa same), but higher full-scale output (0.2–4.7 V), slightly lower sensitivity (42.5 mV/kPa), and no axial port - uses case 482 (non-ported). | Requires PCB-mounted pressure port; less suitable for direct hose coupling or compact axial-mount designs. | Select MPX5114A only if axial port is unnecessary and legacy board layout uses non-ported footprint. |
| MPXH6115A | Same pressure range and ported package (Case 482A), but includes on-chip signal conditioning for 0.5–4.5 V ratiometric output and improved TcOffset (±0.2% VFSS). | Better suited for new designs requiring tighter temperature drift control and wider output headroom for noise margin. | Choose MPXH6115A when upgrading for enhanced long-term stability and reduced calibration burden in high-reliability systems. |
Compared with MPX5114A and MPXH6115A, the MPXAZ4115AC6U offers proven media resistance and cost-effective integration for established automotive and industrial designs where axial porting and legacy compatibility are critical - while MPXH6115A provides superior temperature performance for next-generation deployments.
Availability
MPXAZ4115AC6U is available at Aetrix Electronics and suitable for engine control units, aviation altimeters, and industrial process monitors requiring stable component supply, long-lifecycle support, and traceable sourcing for production programs.
Supply support for MPXAZ4115AC6U 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 sensors, microcontrollers, and automotive ICs, with deep expertise in MEMS and signal-conditioned transducers.
The MPXAZ4115AC6U belongs to Freescale's MPXAZ series of absolute pressure sensors, engineered specifically for cost-sensitive, high-reliability applications in automotive engine management and industrial environmental monitoring.
FAQ
What is the pressure port configuration of the MPXAZ4115AC6U?
The MPXAZ4115AC6U features an axial pressure port in Case 482A package, allowing direct connection to tubing or hoses for absolute pressure measurement. The port is located on the top surface near Pin 1, and the internal reference cavity is sealed - enabling true absolute pressure sensing without external vacuum reference.
Does the MPXAZ4115AC6U require external calibration?
No, the MPXAZ4115AC6U includes factory-trimmed offset and full-scale span with integrated temperature compensation. Its ±1.5% accuracy over 0°–85°C is achieved without user calibration, though system-level calibration may still be applied for highest precision in critical applications.
What is the recommended power supply decoupling for MPXAZ4115AC6U?
Freescale recommends a 0.1 µF ceramic capacitor between VS (Pin 2) and GND (Pin 3), placed as close as possible to the device. For noisy environments, add a 10 µF tantalum capacitor in parallel. This matches the decoupling circuit shown in Figure 3 of the MPXAZ4115AC6U datasheet to ensure stable output and meet electrical specifications.
Can MPXAZ4115AC6U operate with supply voltages other than 5.1 V?
Yes - the MPXAZ4115AC6U is ratiometric and specified for 4.85–5.35 V DC supply. Output scales linearly with VS, so using 5.0 V or 5.2 V is acceptable; however, accuracy specs (e.g., ±1.5%) assume VS = 5.1 V ±0.25 V, and deviation beyond that range may affect performance.
Is MPXAZ4115AC6U compatible with common automotive fluids?
Yes - the MPXAZ4115AC6U uses a gel die coat and durable PPS thermoplastic package rated for resistance to high humidity and common automotive media including engine oil, coolant, and brake fluid. Media compatibility testing was performed per Freescale's qualification standards, making it suitable for under-hood engine control applications.
MPXAZ4115AC6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXAZ4115A
- Package/Case:
- 8-SMD, Gull Wing, Top Port
- 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:
- 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:
- -
MPXAZ4115AC6U FAQ
1.How can I place an order for MPXAZ4115AC6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXAZ4115AC6U 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 MPXAZ4115AC6U reliable?
The price and inventory of MPXAZ4115AC6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXAZ4115AC6U is usually 5 days.
3.What payment methods are accepted for MPXAZ4115AC6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXAZ4115AC6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXAZ4115AC6U?
MPXAZ4115AC6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXAZ4115AC6U 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 MPXAZ4115AC6U?
For technical support, including MPXAZ4115AC6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXAZ4115AC6U requirements.
6.How does Aetrix verify that MPXAZ4115AC6U is sourced from the original manufacturer or authorized distributors?
All MPXAZ4115AC6U 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 MPXAZ4115AC6U meets industry standards.
7.What is the process for return or replacement of MPXAZ4115AC6U?
All MPXAZ4115AC6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXAZ4115AC6U, 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 MPXAZ4115AC6U part is unused and in its original packaging.
Return procedure for MPXAZ4115AC6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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