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NXP Semiconductors MPXAZ6115AP
- Part No.:
- MPXAZ6115AP
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Gull Wing, Side Port
- Datasheet:
-
MPXAZ6115AP.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 4.7V 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:326
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Product details
Overview
MPXAZ6115AP from Freescale Semiconductor is a monolithic, signal-conditioned, absolute pressure sensor with 15–115 kPa range, ratiometric 0.2–4.7 V analog output at 5 V supply, ±1.5% full-scale accuracy over 0 °C to 85 °C, and integrated temperature compensation for automotive MAP and industrial barometric sensing.
For engineers reviewing the MPXAZ6115AP datasheet, MPXAZ6115AP pinout, MPXAZ6115AP application, or MPXAZ6115AP equivalent, this device supports microcontroller-based pressure acquisition in harsh environments requiring media-resistant gel encapsulation, stable offset under thermal cycling, and fast 1 ms response time.
Technical Context
The MPXAZ6115AP integrates a piezoresistive silicon diaphragm with on-chip bipolar op-amp circuitry and thin-film resistor networks to deliver a high-level, temperature-compensated analog voltage output proportional to absolute pressure. Its sealed vacuum reference enables true absolute measurement.
It operates ratiometrically with 4.75–5.25 V supply, draws 6–10 mA quiescent current, and features fluorosilicone gel isolation for resistance to high humidity and common automotive fluids - critical for engine manifold and weather station deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - covers standard atmospheric pressure (101.3 kPa) plus engine manifold vacuum and low-pressure industrial monitoring. |
| Output Voltage Range | 0.133–4.768 V at VS = 5.0 V - provides >4.5 V full-scale span for high SNR ADC interfacing without external amplification. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0 °C to 85 °C - ensures reliable calibration across automotive cabin and industrial control ambient ranges. |
| Response Time | 1.0 ms (10% to 90%) - supports dynamic pressure capture in fast-cycling combustion or pneumatic systems. |
| Operating Temperature | −40 °C to +125 °C - enables under-hood automotive use and extended industrial deployment without external thermal management. |
| Supply Current | 6.0–10.0 mA at 25 °C - compatible with standard 5 V LDOs and low-power microcontroller power budgets. |
| Sensitivity | 45.0 mV/kPa - linear transfer function VOUT = VS × (0.009 × P − 0.095) simplifies firmware scaling and reduces calibration overhead. |
Pinout & Package
MPXAZ6115AP uses a small outline package (Case 98ASA99303D), surface-mount, thermoplastic (PPS) housing with 8-pin configuration and chamfered corner for Pin 1 identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Do not connect - no internal connection; must remain floating or unconnected per datasheet. |
| 2 | VS | Voltage supply input (4.75–5.25 V DC) - powers internal amplifier and sensor bridge; requires local 100 nF decoupling. |
| 3 | GND | Analog ground reference - must be connected to system AGND with low-impedance path to minimize noise coupling. |
| 4 | VOUT | Analog output (0.133–4.768 V) - directly interfaces to 10-bit+ ADCs; output source/sink capability ±0.5 mA limits external load impedance. |
| 5–8 | DNC | Do not connect - all four pins are internally unconnected and must remain unattached in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Media-resistant fluorosilicone gel | Isolates die and wire bonds from humidity and automotive fluids while transmitting pressure - enables direct mounting in intake manifolds without external protection. |
| On-chip temperature compensation | Calibrated from −40 °C to +125 °C - eliminates need for external thermistor or software compensation algorithms in embedded systems. |
| Ratiometric output | Output scales linearly with supply voltage - allows shared 5 V rail with MCU ADC reference, removing sensitivity to supply drift. |
| High reliability monolithic construction | No bond wires exposed to environment; sealed vacuum reference cavity - achieves long-term stability with ±0.25% VFSS offset shift after 1000 pressure cycles. |
| Fast warm-up time | 20 ms - ensures valid readings within one control loop cycle after power-on, critical for engine start-up diagnostics. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Industrial Barometric Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold pressure in gasoline and diesel engines for fuel injection timing and air mass calculation. IC Role / Device Role / Timing Role: Absolute pressure transducer providing analog voltage input to ECU ADC with 1 ms response for transient load tracking. Use Value: Enables closed-loop air-fuel ratio control with ±1.5 kPa accuracy across −40 °C to 125 °C ambient, supported by media-resistant gel packaging. |
Use Scenario: Atmospheric pressure logging in portable weather stations and environmental data loggers deployed outdoors or in unconditioned enclosures. IC Role / Device Role / Timing Role: Primary absolute pressure sensing element delivering calibrated 0.133–4.7 V output referenced to sealed vacuum cavity. Use Value: Delivers stable 0–115 kPa coverage with <1.5% error band and −40 °C to 85 °C operating range, eliminating need for field recalibration. |
| Medical Ventilator Pressure Feedback | HVAC Differential Airflow Sensing |
Use Scenario: Monitoring patient airway pressure in critical-care ventilators where precision, reliability, and biocompatible media compatibility are required. IC Role / Device Role / Timing Role: Safety-critical absolute pressure sensor feeding real-time pressure waveform to safety controller with 20 ms warm-up guarantee. Use Value: Fluorosilicone gel isolation meets ISO 10993 biocompatibility requirements for indirect patient contact; ±1.5% accuracy ensures therapy delivery fidelity. |
Use Scenario: Measuring static pressure drop across HVAC filters or duct sections to trigger maintenance alerts and optimize fan speed control. IC Role / Device Role / Timing Role: Low-drift absolute reference enabling differential computation when paired with a second MPXAZ6115AP on opposite side of filter. Use Value: On-chip temperature compensation maintains <±2 kPa error across 0–85 °C ambient, reducing false alarms caused by thermal drift. |
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/T1 | Super small outline package (Case 98ARH99066A), same 15–115 kPa range and ±1.5% accuracy, but lacks media-resistant gel coating. | Not rated for direct exposure to automotive fluids or high-humidity condensation; suitable only for dry-air or controlled-environment applications. | Select when board space is constrained and media exposure is absent - saves 30% footprint vs. MPXAZ6115AP's Case 98ASA99303D. |
| MPXAZ6115AC6T1 | Same media-resistant gel, identical electrical specs, but supplied in tape-and-reel (Case 98ASB17757C) instead of tray (Case 98ASA99303D). | Identical performance and media resistance; differs only in packaging format and reel-based automation compatibility. | Select for high-volume SMT production requiring automated pick-and-place; MPXAZ6115AP remains optimal for prototyping and low-volume assembly. |
Compared with MPXH6115A6U/T1, MPXAZ6115AP adds fluorosilicone gel for fluid resistance but uses a larger SOP package; compared with MPXAZ6115AC6T1, MPXAZ6115AP offers identical sensing performance in tray packaging for manual or semi-automated assembly.
Availability
MPXAZ6115AP is available at Aetrix Electronics and suitable for engine control units, industrial barometers, and medical ventilator designs requiring stable component supply, long-lifecycle support, and validated media resistance.
Supply support for MPXAZ6115AP 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 fabless semiconductor company specializing in embedded processing, sensors, and analog solutions for automotive, industrial, and consumer markets.
The MPXAZ6115AP belongs to the MPXxx6115A series - a family of monolithic, signal-conditioned absolute pressure sensors designed specifically for high-reliability, media-exposed applications including engine manifold sensing and environmental monitoring.
FAQ
What is the absolute pressure range and output behavior of the MPXAZ6115AP?
The MPXAZ6115AP measures absolute pressure from 15 kPa to 115 kPa with a ratiometric analog output ranging from 0.133 V to 4.768 V at VS = 5.0 V. Its transfer function is defined as VOUT = VS × (0.009 × P − 0.095), where P is pressure in kPa. This linear relationship enables straightforward firmware conversion without lookup tables, and the output remains stable across its full operating temperature range of −40 °C to +125 °C.
Does the MPXAZ6115AP require external temperature compensation?
No, the MPXAZ6115AP does not require external temperature compensation. It features on-chip temperature compensation calibrated from −40 °C to +125 °C, ensuring output accuracy remains within ±1.5% of full-scale span over 0 °C to 85 °C. The internal circuitry automatically corrects for offset and span drift, eliminating the need for external thermistors or software correction algorithms in most embedded implementations of the MPXAZ6115AP.
What is the significance of the fluorosilicone gel in the MPXAZ6115AP package?
The fluorosilicone gel in the MPXAZ6115AP isolates the silicon die and wire bonds from environmental exposure while transmitting pressure accurately to the sensing diaphragm. This enables direct mounting in high-humidity environments and contact with common automotive fluids such as oil vapor and fuel condensate - a key differentiator from non-gel variants like the MPXH6115A6U/T1. The gel is qualified per ISO 10993 for biocompatibility, supporting medical applications of the MPXAZ6115AP.
Can the MPXAZ6115AP be used with a 3.3 V microcontroller ADC?
The MPXAZ6115AP is specified for 4.75–5.25 V supply and delivers a 0.133–4.768 V output at 5 V. While it can operate down to 4.75 V, it is not designed for 3.3 V supply. Using it with a 3.3 V MCU ADC requires either a level-shifting buffer or a dedicated 5 V supply rail. Direct connection to a 3.3 V ADC input risks clipping the upper ~1.5 V of the output range and violates the MPXAZ6115AP's specified operating conditions.
What are the PCB layout requirements for the MPXAZ6115AP's DNC pins?
All DNC pins (1 and 5–8) on the MPXAZ6115AP must remain unconnected - no traces, vias, or copper pours should attach to them. Per the datasheet, these pins have no internal connection and floating them prevents parasitic coupling or unintended current paths. The recommended footprint (Case 98ASA99303D) defines pad geometry that avoids solder bridging; a solder mask is strongly advised to prevent shorts, especially given the 0.69 mm pin pitch and 8-pin SOP layout of the MPXAZ6115AP.
MPXAZ6115AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXAZ6115A
- Package/Case:
- 8-SMD, Gull Wing, Side Port
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- Barbed
- 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
MPXAZ6115AP FAQ
1.How can I place an order for MPXAZ6115AP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXAZ6115AP 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 MPXAZ6115AP reliable?
The price and inventory of MPXAZ6115AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXAZ6115AP is usually 5 days.
3.What payment methods are accepted for MPXAZ6115AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXAZ6115AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXAZ6115AP?
MPXAZ6115AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXAZ6115AP 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 MPXAZ6115AP?
For technical support, including MPXAZ6115AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXAZ6115AP requirements.
6.How does Aetrix verify that MPXAZ6115AP is sourced from the original manufacturer or authorized distributors?
All MPXAZ6115AP 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 MPXAZ6115AP meets industry standards.
7.What is the process for return or replacement of MPXAZ6115AP?
All MPXAZ6115AP units undergo pre-shipment inspection (PSI). If there is an issue with MPXAZ6115AP, 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 MPXAZ6115AP part is unused and in its original packaging.
Return procedure for MPXAZ6115AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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