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NXP Semiconductors MPXAZ4115A6T1
- Part No.:
- MPXAZ4115A6T1
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
MPXAZ4115A6T1.pdf
- Description:
- SENSOR 16.68PSIA 4.8V
- Quantity:
- Payment:
- Shipping:
Inventory:3,449
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Product details
Overview
MPXAZ4115A6T1 from Freescale Semiconductor (formerly Motorola) is a monolithic, signal-conditioned, absolute pressure sensor with piezoresistive sensing element, on-chip bipolar op amp, and thin-film resistor networks. 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 MPXAZ4115A6T1 datasheet, MPXAZ4115A6T1 pinout, MPXAZ4115A6T1 application, or MPXAZ4115A6T1 equivalent, key selection criteria include its absolute pressure range, ratiometric 5.1 V supply operation, integrated temperature compensation, small-outline surface-mount package (Case 482), and compatibility with microcontroller A/D interfaces requiring stable analog pressure feedback.
Technical Context
The MPXAZ4115A6T1 implements a fully integrated silicon piezoresistive transducer with on-die signal conditioning, including a bipolar operational amplifier and precision thin-film resistor network for offset and span calibration. Its transfer function is defined as Vout = VS × (0.009 × P – 0.095), with VS = 5.1 ± 0.25 Vdc.
It provides absolute pressure measurement via a sealed cavity reference, exhibits 1.0 ms response time (10–90%), and requires external decoupling per Figure 3 to meet electrical specifications. The gel die coat and PPS thermoplastic package ensure media resistance against automotive fluids and high-humidity environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - supports MAP sensing in naturally aspirated and moderately boosted internal combustion engines. |
| Output Voltage | 0.2–4.8 V ratiometric - scales linearly with supply voltage (VS = 5.1 V ± 0.25 V), simplifying A/D reference alignment. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0° to 85°C - includes linearity, TcOffset, TcSpan, hysteresis, and temperature cycling error. |
| Supply Current | 7.0 mA typical - enables low-power embedded system integration without active current limiting. |
| Response Time | 1.0 ms (10–90%) - suitable for real-time combustion cycle monitoring and transient throttle response tracking. |
| Operating Temp | –40° to +125°C - validated for under-hood automotive environments with no derating required. |
| Sensitivity | 45.9 mV/kPa - yields ~4.6 V full-scale span, enabling high-resolution digitization with 10-bit+ ADCs. |
Pinout & Package
MPXAZ4115A6T1 uses Case 482 - a 6-pin small-outline plastic package (SOP) with gull-wing leads, 1.27 mm pitch, and notch-defined Pin 1. Pins 1, 5, 6, 7, and 8 are non-connected; only Pins 2 (VS), 3 (Vout), and 4 (Gnd) are functional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 | Supply Voltage (VS) | 5.1 V ± 0.25 V excitation input; device is ratiometric - output scales directly with VS variation. |
| Pin 3 | Output Voltage (Vout) | Analog output proportional to absolute pressure (0.2–4.8 V); requires external RC filtering per Figure 3 for A/D interface stability. |
| Pin 4 | Ground (Gnd) | Reference return for both supply and output; must be low-impedance and star-connected to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated from –40° to +125°C - eliminates need for external thermistor-based correction in engine bay applications. |
| Durable PPS thermoplastic package | Resists common automotive fluids (e.g., oil, coolant, brake fluid) and >95% RH - enables direct mounting without protective housings. |
| Gel die coat encapsulation | Protects wire bonds and silicon die while transmitting pressure - ensures long-term reliability in vibration-prone environments. |
| High-level analog output | 0.2–4.8 V swing at 5.1 V supply - reduces susceptibility to noise and avoids external amplification in most MCU-based designs. |
| Monolithic construction | Single-die integration of sensing element and signal conditioning - guarantees matched thermal coefficients and eliminates interconnect drift. |
Applications
| Aviation Altimeters | Industrial Controls |
|---|---|
|
Use Scenario: Measuring atmospheric pressure for altitude calculation in unmanned aerial vehicles (UAVs) and portable weather instruments. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary barometric reference with minimal thermal drift. Use Value: ±1.5% VFSS accuracy over 0°–85°C and 1.0 ms response enable reliable altitude hold and vertical speed estimation without recalibration. |
Use Scenario: Monitoring compressed air line pressure in factory automation systems and HVAC duct static pressure control. IC Role / Device Role / Timing Role: Analog front-end sensor feeding PLC or microcontroller ADC for closed-loop pneumatic regulation. Use Value: Ratiometric output and 7 mA supply current allow direct connection to 5 V industrial controllers with no additional level-shifting or power management. |
| Engine Control | Weather Stations |
|
Use Scenario: Manifold Absolute Pressure (MAP) sensing in gasoline and diesel engine ECUs for fuel injection timing and air mass calculation. IC Role / Device Role / Timing Role: Primary pressure feedback element in engine air-path control loop, operating continuously under hood temperatures up to +125°C. Use Value: Validated –40° to +125°C operation and media-resistant PPS package eliminate field failures due to thermal stress or oil vapor exposure. |
Use Scenario: Barometric pressure logging in outdoor environmental monitoring stations deployed in humid coastal or tropical climates. IC Role / Device Role / Timing Role: Long-term stable absolute pressure reference with gel-coated die and humidity-resistant packaging. Use Value: Offset stability of ±0.5% VFSS after 1000 pressure/temperature cycles ensures multi-year calibration retention without field service. |
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 accuracy (±2.0% VFSS), and identical Case 482 package. | Used in cost-sensitive industrial gauges where ±2.0% accuracy is acceptable and PCB layout reuse is critical. | Select MPX5114A only if legacy board space constraints prevent redesign and ±0.5% accuracy loss is tolerable. |
| MPXH6115A6T1 | Same pressure range and output, but includes on-chip diagnostic capability (output short-to-VS/GND detection) and enhanced ESD rating (±8 kV HBM). | Required in ASIL-B automotive subsystems needing fault reporting; not qualified for engine control without additional validation. | Choose MPXH6115A6T1 when functional safety diagnostics or higher ESD immunity are mandatory, accepting minor cost premium. |
Compared with MPXAZ4115A6T1, MPX5114A trades accuracy for cost and footprint compatibility, while MPXH6115A6T1 adds diagnostics and ESD robustness at the expense of qualification scope - neither is pin-compatible without verification of biasing and load conditions.
Availability
MPXAZ4115A6T1 is available at Aetrix Electronics and suitable for engine control units, aviation altimeters, and industrial pressure monitoring systems requiring stable component supply, long-lifecycle support, and traceable sourcing for production programs.
Supply support for MPXAZ4115A6T1 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, specializing in automotive and industrial-grade MEMS pressure solutions before its acquisition in 2015.
The MPXAZ4115A6T1 belongs to Freescale's MPXAZ series of absolute pressure sensors, engineered specifically for high-reliability, media-resistant applications in engine management, aerospace, and environmental instrumentation.
FAQ
What is the pressure reference type of the MPXAZ4115A6T1?
The MPXAZ4115A6T1 is an absolute pressure sensor, meaning it measures pressure relative to a sealed vacuum reference cavity inside the package. This enables direct barometric or manifold absolute pressure measurement without external reference lines. Its specified range of 15–115 kPa absolute makes it suitable for altitude sensing and naturally aspirated engine MAP applications. The MPXAZ4115A6T1 does not require external venting or differential porting.
Does the MPXAZ4115A6T1 require external signal conditioning?
No, the MPXAZ4115A6T1 integrates all signal conditioning on-die, including a bipolar op amp and thin-film resistor network for offset and span calibration. It outputs a ready-to-use 0.2–4.8 V analog signal when supplied with 5.1 V. However, Freescale recommends a simple RC filter (per Figure 3 in the datasheet) between Vout and the A/D converter to suppress high-frequency noise - this is not active conditioning but passive anti-aliasing. The MPXAZ4115A6T1 needs no external amplifiers, ADC drivers, or temperature compensation circuits.
What is the maximum supply voltage tolerance for the MPXAZ4115A6T1?
The MPXAZ4115A6T1 is rated for VS = 4.85–5.35 Vdc, with 5.1 Vdc as the nominal supply. Operation outside this range may cause parametric shift or damage. The device is ratiometric: its output voltage scales linearly with VS, so variations within the 4.85–5.35 V window do not affect measurement accuracy - only the absolute output level. Exceeding 5.35 V risks permanent degradation. The MPXAZ4115A6T1 must be powered from a well-regulated 5 V rail with ≤±5% tolerance.
Can the MPXAZ4115A6T1 be used in high-humidity environments?
Yes, the MPXAZ4115A6T1 is explicitly designed for high-humidity operation. Its silicon die is protected by a gel die coat that isolates wire bonds and active surfaces while transmitting pressure, and its durable thermoplastic (PPS) package resists moisture ingress. Freescale validates operation at >95% relative humidity and confirms resistance to common automotive media. The MPXAZ4115A6T1 has been deployed in weather stations and under-hood engine control modules without conformal coating or enclosure.
Is the MPXAZ4115A6T1 RoHS compliant?
The MPXAZ4115A6T1 was manufactured prior to Freescale's full RoHS transition and is classified as a legacy product. Original documentation does not declare RoHS compliance, and leaded solder paste was used in its Case 482 assembly. For new designs requiring RoHS adherence, NXP recommends the newer MP3V5050 or MPX5700 series. The MPXAZ4115A6T1 remains available for legacy repair and continuity programs where RoHS is not mandated.
MPXAZ4115A6T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXAZ4115A
- Package/Case:
- 8-SMD Module
- Packaging:
- Tape & Reel (TR)
- 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:
- -
MPXAZ4115A6T1 FAQ
1.How can I place an order for MPXAZ4115A6T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXAZ4115A6T1 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 MPXAZ4115A6T1 reliable?
The price and inventory of MPXAZ4115A6T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXAZ4115A6T1 is usually 5 days.
3.What payment methods are accepted for MPXAZ4115A6T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXAZ4115A6T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXAZ4115A6T1?
MPXAZ4115A6T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXAZ4115A6T1 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 MPXAZ4115A6T1?
For technical support, including MPXAZ4115A6T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXAZ4115A6T1 requirements.
6.How does Aetrix verify that MPXAZ4115A6T1 is sourced from the original manufacturer or authorized distributors?
All MPXAZ4115A6T1 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 MPXAZ4115A6T1 meets industry standards.
7.What is the process for return or replacement of MPXAZ4115A6T1?
All MPXAZ4115A6T1 units undergo pre-shipment inspection (PSI). If there is an issue with MPXAZ4115A6T1, 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 MPXAZ4115A6T1 part is unused and in its original packaging.
Return procedure for MPXAZ4115A6T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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