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NXP Semiconductors MPXAZ6115A7U
- Part No.:
- MPXAZ6115A7U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-DIP Module
- Datasheet:
-
MPXAZ6115A7U.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 4.7V 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,299
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Product details
Overview
MPXAZ6115A7U from NXP Semiconductors (formerly Freescale) is an absolute pressure sensor IC with integrated signal conditioning, designed for direct interface to microcontroller ADC inputs in automotive and industrial systems. It delivers a ratiometric analog output (0.200 V to 4.700 V at 5.0 V supply) over a 15–115 kPa pressure range, features ±1.5% full-scale span accuracy from 0 °C to 85 °C, and operates across –40 °C to +125 °C with on-chip temperature compensation.
For engineers reviewing the MPXAZ6115A7U datasheet, MPXAZ6115A7U pinout, MPXAZ6115A7U application, or MPXAZ6115A7U equivalent, this page provides verified technical context, validated pin functions, real-world use cases in MAP sensing and barometric measurement, and confirmed alternative parts with documented functional and packaging differences.
Technical Context
The MPXAZ6115A7U integrates a piezoresistive silicon diaphragm, thin-film resistor networks, and a bipolar op-amp signal conditioner on a single monolithic die. Its output voltage is ratiometric to supply voltage (VS = 4.75–5.25 V), enabling stable performance without external reference components.
It uses fluorosilicone gel encapsulation to isolate the sensing element from harsh media while transmitting pressure to the vacuum-referenced diaphragm. The device is calibrated and temperature-compensated on-chip, eliminating need for system-level compensation algorithms in typical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - covers manifold absolute pressure (MAP) and barometric sensing in sea-level to high-altitude environments. |
| Output Voltage Range | 0.200 V to 4.700 V at VS = 5.0 V - directly compatible with 5 V ADC references; no level-shifting required. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0 °C to 85 °C - enables reliable pressure reading without post-calibration in most embedded systems. |
| Supply Voltage | 4.75–5.25 V DC - ratiometric operation ensures output stability against supply rail variation. |
| Response Time | 1.0 ms (10% to 90%) - supports dynamic pressure monitoring in engine control and fast-response environmental logging. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions. |
| Sensitivity | 45.0 mV/kPa - linear transfer function (VOUT = VS × (0.009 × P − 0.095)) simplifies firmware scaling. |
Pinout & Package
Durable thermoplastic (PPS) surface-mount small outline package (Case 98ASB17757C), 8-pin, 10.54 mm × 10.54 mm × 3.81 mm body, chamfered corner marking Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Do not connect - internal test pad; floating or grounded connection risks calibration drift. |
| 2 | VS | Positive supply input - must be decoupled with 100 nF capacitor near pin; supplies internal op-amp and bridge. |
| 3 | GND | Analog ground reference - requires low-impedance return path to minimize noise coupling into VOUT. |
| 4 | VOUT | Analog output - ratiometric voltage proportional to absolute pressure; drives 51 kΩ load with 47 pF filter recommended. |
| 5–8 | DNC | Do not connect - unused bond pads; no internal connection; must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Media-resistant gel encapsulation | Fluorosilicone coating isolates die and wire bonds from humidity and common automotive fluids while preserving pressure transmission. |
| On-chip temperature compensation | Compensates offset and span errors across –40 °C to +125 °C, reducing host MCU firmware complexity. |
| Ratiometric output | Output scales linearly with supply voltage, eliminating need for precision voltage reference in ADC subsystems. |
| High reliability monolithic construction | Single-die integration avoids hybrid assembly failures; qualified for automotive-grade thermal cycling and vibration. |
| Small-outline SMT package | Case 98ASB17757C enables compact PCB layout and compatibility with standard reflow processes. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Barometric Pressure Sensing |
|---|---|
Use Scenario: Real-time intake manifold pressure monitoring in gasoline and diesel engine control units for air-fuel ratio calculation and ignition timing. IC Role / Device Role / Timing Role: Absolute pressure transducer providing analog feedback to ECU's ADC for closed-loop combustion optimization. Use Value: ±1.5% VFSS accuracy and 1 ms response time enable precise load estimation across wide RPM and throttle ranges. |
Use Scenario: Altitude and weather trend detection in portable weather stations and UAV flight controllers. IC Role / Device Role / Timing Role: Barometric reference sensor delivering stable kPa readings for pressure altitude computation and storm prediction algorithms. Use Value: –40 °C to +125 °C operating range and gel protection ensure field reliability in outdoor and unheated enclosures. |
| Industrial Vacuum Monitoring | Medical Respiratory Equipment |
Use Scenario: Continuous vacuum level verification in semiconductor process tools and HVAC vacuum pumps. IC Role / Device Role / Timing Role: Absolute pressure interface for PLC analog input modules, reporting pressure deviation from atmospheric baseline. Use Value: 15–115 kPa range covers partial vacuum to overpressure; 0.25% VFSS offset stability ensures long-term calibration integrity. |
Use Scenario: Airway pressure sensing in ventilators and anesthesia machines for breath-by-breath compliance monitoring. IC Role / Device Role / Timing Role: Safety-critical pressure transducer feeding real-time data to embedded safety controller for pressure limit enforcement. Use Value: On-chip temperature compensation eliminates need for external thermistor, reducing BOM count and failure modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXH6115A6U | Super small outline package (Case 98ARH99066A); same 15–115 kPa range and ±1.5% accuracy but smaller footprint (7.62 mm × 5.08 mm). | Preferred where board space is constrained; lacks media-resistant gel - unsuitable for humid or fluid-exposed environments. | Select MPXH6115A6U only when size reduction outweighs media resistance requirements. |
| MPX5115DP | Differential pressure variant (not absolute); identical sensitivity and accuracy but requires two ports and external reference venting. | Applicable only in differential configurations (e.g., airflow across filters); cannot replace MPXAZ6115A7U in sealed absolute reference applications. | Choose MPX5115DP only if system design mandates differential measurement and vented reference path. |
Compared with MPXH6115A6U and MPX5115DP, the MPXAZ6115A7U uniquely combines absolute reference, gel-based media resistance, and SOP-8 compatibility - making it the only option among the three qualified for under-hood MAP sensing without external protection.
Availability
MPXAZ6115A7U is available at Aetrix Electronics and suitable for engine control, barometric instrumentation, and industrial vacuum monitoring requiring stable component supply, long-lifecycle support, and automotive-grade reliability.
Supply support for MPXAZ6115A7U 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
NXP Semiconductors acquired Freescale in 2015 and maintains its automotive and industrial sensor portfolio, emphasizing robustness, qualification to AEC-Q100, and system-level integration support.
The MPXAZ6115A7U belongs to the MPXxx6115A series of monolithic, signal-conditioned absolute pressure sensors - engineered specifically for cost-sensitive, high-volume automotive and industrial applications demanding analog output simplicity and environmental resilience.
FAQ
What is the pressure reference type of the MPXAZ6115A7U?
The MPXAZ6115A7U is an absolute pressure sensor with a sealed vacuum reference cavity behind its silicon diaphragm. This means its output corresponds to pressure relative to perfect vacuum - critical for manifold absolute pressure (MAP) and barometric applications where atmospheric baseline matters. Unlike gauge or differential variants, the MPXAZ6115A7U does not require external venting or reference ports.
Does the MPXAZ6115A7U require external calibration or compensation?
No, the MPXAZ6115A7U includes factory-trimmed, on-chip temperature compensation for both offset and full-scale span across –40 °C to +125 °C. Its ratiometric output and linear transfer function (VOUT = VS × (0.009 × P − 0.095)) eliminate need for external thermistors or software compensation tables in most implementations. System-level calibration is optional and only needed for sub-1% accuracy targets.
What is the correct PCB footprint for the MPXAZ6115A7U?
The MPXAZ6115A7U uses Case 98ASB17757C - a small outline package with 8 leads, 1.27 mm pitch, and 10.54 mm × 10.54 mm body. The official minimum footprint is defined in Freescale document 98ASB17757C.pdf: pad length 2.54 mm, width 0.69 mm, spacing 1.27 mm, with solder mask defined to prevent bridging. Use of the exact footprint ensures self-alignment during reflow and reliable solder joint formation.
Can the MPXAZ6115A7U be used with a 3.3 V microcontroller ADC?
The MPXAZ6115A7U is specified for 4.75–5.25 V supply and outputs 0.200–4.700 V at 5.0 V - exceeding 3.3 V ADC input range. Direct connection risks saturation. To interface with 3.3 V systems, use a resistive divider (e.g., 10 kΩ + 20 kΩ) on VOUT with proper loading analysis, or power MPXAZ6115A7U from a clean 5 V rail while routing VOUT through a rail-to-rail buffer referenced to 3.3 V. Do not reduce VS below 4.75 V.
Is the MPXAZ6115A7U RoHS compliant and lead-free?
Yes, the MPXAZ6115A7U is RoHS compliant and lead-free per NXP's product change notices and packaging documentation. It conforms to JEDEC J-STD-020 moisture sensitivity level (MSL) 3 and is qualified for Pb-free reflow profiles (peak 260 °C). The thermoplastic PPS case material and leadframe plating meet all current EU and global environmental directives applicable to automotive and industrial components.
MPXAZ6115A7U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXAZ6115A
- Package/Case:
- 8-DIP 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 ~ 4.7 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.75V ~ 5.25V
- Port Size:
- Male - 0.13" (3.17mm) Tube
- Port Style:
- Barbless
- 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:
- 8-DIP
MPXAZ6115A7U FAQ
1.How can I place an order for MPXAZ6115A7U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXAZ6115A7U 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 MPXAZ6115A7U reliable?
The price and inventory of MPXAZ6115A7U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXAZ6115A7U is usually 5 days.
3.What payment methods are accepted for MPXAZ6115A7U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXAZ6115A7U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXAZ6115A7U?
MPXAZ6115A7U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXAZ6115A7U 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 MPXAZ6115A7U?
For technical support, including MPXAZ6115A7U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXAZ6115A7U requirements.
6.How does Aetrix verify that MPXAZ6115A7U is sourced from the original manufacturer or authorized distributors?
All MPXAZ6115A7U 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 MPXAZ6115A7U meets industry standards.
7.What is the process for return or replacement of MPXAZ6115A7U?
All MPXAZ6115A7U units undergo pre-shipment inspection (PSI). If there is an issue with MPXAZ6115A7U, 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 MPXAZ6115A7U part is unused and in its original packaging.
Return procedure for MPXAZ6115A7U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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