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NXP Semiconductors MPXA6115A6U
- Part No.:
- MPXA6115A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
MPXA6115A6U.pdf
- Description:
- SENSOR 16.68PSIA 4.7V
- Quantity:
- Payment:
- Shipping:
Inventory:3,012
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Product details
Overview
MPXA6115A6U from Freescale Semiconductor is an absolute pressure sensor IC with monolithic silicon piezoresistive sensing element, on-chip bipolar op amp signal conditioning, and thin-film resistor-based temperature compensation. It delivers a ratiometric analog output (0.200 V to 4.700 V) over a 15–115 kPa range at 5.0 V supply, operates from −40 °C to +125 °C, and is housed in a durable PPS surface-mount small outline package (Case 98ASB17756C). It is used in engine manifold absolute pressure (MAP) sensing.
For engineers reviewing the MPXA6115A6U datasheet, MPXA6115A6U pinout, MPXA6115A6U application, or MPXA6115A6U equivalent, this page provides verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for automotive and industrial pressure measurement systems.
Technical Context
The MPXA6115A6U integrates a micromachined silicon diaphragm with piezoresistive elements, thin-film metallization, and bipolar op amp circuitry to generate a high-level analog voltage output directly proportional to applied absolute pressure. Its transfer function is VOUT = VS × (0.009 × P − 0.095), where VS = 5.0 V ± 0.25 V and P is pressure in kPa.
On-chip temperature compensation corrects offset and span drift across −40 °C to +125 °C using calibrated resistor networks. The device features ±1.5% full-scale span accuracy over 0 °C to 85 °C, 1.0 ms response time, and fluorosilicone gel isolation protecting die and wire bonds while transmitting pressure signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - defines usable operating window for vacuum-to-ambient pressure measurement in MAP and barometric applications. |
| Output Voltage Range | 0.200 V to 4.700 V at VS = 5.0 V - provides 4.5 V full-scale span compatible with standard 5 V ADC references without amplification. |
| Supply Voltage | 4.75–5.25 V DC - ratiometric operation ensures output scaling remains stable with supply variation, simplifying power rail design. |
| Accuracy | ±1.5% VFSS over 0 °C to 85 °C - guarantees calibrated pressure reading error stays within defined band across industrial temperature range. |
| Response Time | 1.0 ms (10% to 90%) - enables real-time capture of dynamic pressure transients in internal combustion engine cycles. |
| Operating Temperature | −40 °C to +125 °C - supports under-hood automotive deployment and industrial environments without external thermal management. |
| Sensitivity | 45.0 mV/kPa - yields ~4.5 V output swing across full 100 kPa range, optimizing ADC resolution usage. |
Pinout & Package
MPXA6115A6U uses the small outline package Case 98ASB17756C: 8-pin, thermoplastic (PPS) surface-mount housing with chamfered corner marking Pin 1. Dimensions are 10.79 mm × 10.79 mm × 3.81 mm (L × W × H), lead pitch 2.54 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | DNC | Do not connect - electrically isolated; serves only as mechanical pin 1 identifier via chamfered corner. |
| Pin 2 | VS | Voltage supply input - must be regulated 4.75–5.25 V DC; powers internal op amp and sensing bridge. |
| Pin 3 | GND | Analog ground reference - requires low-impedance connection to system ground plane to minimize noise coupling into output. |
| Pin 4 | VOUT | Analog output voltage - ratiometric, buffered, 0.2–4.7 V range; connects directly to 10-bit+ ADC input with 100 nF decoupling. |
| Pins 5–8 | DNC | Do not connect - no internal connection; must remain floating per datasheet to avoid performance degradation. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Calibrated resistor network maintains ±1.5% VFSS accuracy from −40 °C to +125 °C without external components. |
| Fluorosilicone gel isolation | Protects silicon die and wire bonds from humidity and automotive fluids while preserving pressure transmission fidelity. |
| Ratiometric output | Output scales linearly with supply voltage, eliminating need for precision voltage reference in ADC subsystem. |
| High-level analog output | 4.5 V full-scale span minimizes susceptibility to noise and avoids gain-stage amplification in signal chain. |
| Small outline package (98ASB17756C) | Surface-mount footprint compatible with automated assembly; 10.79 mm × 10.79 mm body enables compact PCB layout. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Weather Station Barometer |
|---|---|
|
Use Scenario: Measuring 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 real-time analog voltage proportional to manifold vacuum/boost level. Use Value: Enables closed-loop air-fuel ratio control with ±1.5% accuracy across −40 °C to +125 °C ambient, supporting OBD-II compliance. |
Use Scenario: Monitoring atmospheric pressure for weather forecasting, altitude estimation, and environmental data logging. IC Role / Device Role / Timing Role: High-stability absolute pressure sensor interfaced to microcontroller ADC for periodic sampling. Use Value: Delivers 15–115 kPa range and 1.0 ms response suitable for slow-varying barometric trends with minimal calibration drift. |
| Industrial Process Control | Medical Ventilator Pressure Monitoring |
|
Use Scenario: Regulating pneumatic actuators and monitoring sealed chamber pressure in factory automation systems. IC Role / Device Role / Timing Role: Primary pressure feedback element in PID-controlled pressure loops requiring analog voltage input. Use Value: Ratiometric output and 45 mV/kPa sensitivity simplify analog front-end design while maintaining repeatability over 1000 pressure cycles. |
Use Scenario: Sensing patient airway pressure in critical-care ventilators to ensure safe inspiratory/expiratory pressure limits. IC Role / Device Role / Timing Role: Safety-critical absolute pressure monitor feeding real-time data to ventilator control MCU. Use Value: Fluorosilicone gel isolation resists humidity and condensation, and ±0.25% VFSS offset stability supports long-term clinical reliability. |
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 7.62 mm × 7.62 mm footprint vs. 10.79 mm × 10.79 mm. | Preferred where board space is constrained; identical electrical specs but smaller thermal mass may affect transient response in high-dissipation environments. | Select MPXH6115A6U when PCB area is limited and reflow profile accommodates tighter pitch; verify mechanical mounting compatibility. |
| MPXAZ6115AC6T1 | Media-resistant gel variant with enhanced protection against aggressive automotive fluids; otherwise identical pressure range, output, and accuracy. | Required in direct exposure to fuel vapors, brake fluid, or coolant; not needed for dry-air or encapsulated MAP applications. | Choose MPXAZ6115AC6T1 only if media compatibility testing confirms exposure to non-dry-air substances; adds cost without benefit in sealed systems. |
Compared with MPXA6115A6U, MPXH6115A6U saves board area with identical performance but demands tighter layout tolerances, while MPXAZ6115AC6T1 adds fluid resistance at higher cost-neither is pin-compatible, and both require footprint redesign.
Availability
MPXA6115A6U is available at Aetrix Electronics and suitable for engine control, weather instrumentation, and industrial process monitoring requiring stable component supply, long-lifecycle support, and automotive-grade reliability.
Supply support for MPXA6115A6U 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 embedded processors and analog sensors, known for automotive and industrial-grade mixed-signal ICs.
The MPXA6115A6U belongs to Freescale's MPXxx6115A series of monolithic, signal-conditioned absolute pressure sensors, engineered for high-accuracy, temperature-stable analog output in harsh environments.
FAQ
What is the pressure range and output behavior of the MPXA6115A6U?
The MPXA6115A6U measures absolute pressure from 15 kPa to 115 kPa and produces a ratiometric analog output voltage ranging from 0.200 V to 4.700 V at VS = 5.0 V. Its transfer function is VOUT = VS × (0.009 × P − 0.095), where P is pressure in kPa. Output saturates outside the rated range, and the device exhibits ±1.5% full-scale span accuracy over 0 °C to 85 °C.
Is the MPXA6115A6U pin-compatible with other devices in the MPXxx6115A family?
No, the MPXA6115A6U is not pin-compatible with MPXH6115A6U or MPXAZ6115AC6T1. While all share the same 8-pin configuration, MPXA6115A6U uses Case 98ASB17756C (10.79 mm × 10.79 mm), whereas MPXH6115A6U uses Case 98ARH99066A (7.62 mm × 7.62 mm) and MPXAZ6115AC6T1 uses Case 98ASB17757C - each requires distinct PCB footprints and land patterns.
Does the MPXA6115A6U require external calibration or compensation components?
No, the MPXA6115A6U includes fully integrated on-chip temperature compensation and factory calibration. It delivers specified accuracy (±1.5% VFSS) over 0 °C to 85 °C without external resistors, capacitors, or software correction - only a 100 nF bypass capacitor on VOUT is recommended for noise filtering per the datasheet.
What media is the MPXA6115A6U qualified for, and what protection does it offer?
The MPXA6115A6U uses fluorosilicone gel to isolate the silicon die and wire bonds from environmental exposure while transmitting pressure. It is qualified for dry air media; resistance to humidity and common automotive fluids is confirmed, but long-term exposure to fuels, coolants, or brake fluids is not validated. For such media, MPXAZ6115A-series variants are specified.
Can the MPXA6115A6U operate from a 3.3 V supply?
No, the MPXA6115A6U requires a supply voltage between 4.75 V and 5.25 V DC. Operation below 4.75 V violates maximum ratings and results in undefined output behavior, reduced accuracy, or failure to meet specified performance - it is not designed for 3.3 V systems and lacks low-voltage support circuitry.
MPXA6115A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA6115A
- Package/Case:
- 8-SMD Module
- Packaging:
- Tube
- 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:
- -
- 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:
- -
MPXA6115A6U FAQ
1.How can I place an order for MPXA6115A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA6115A6U 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 MPXA6115A6U reliable?
The price and inventory of MPXA6115A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA6115A6U is usually 5 days.
3.What payment methods are accepted for MPXA6115A6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA6115A6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA6115A6U?
MPXA6115A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA6115A6U 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 MPXA6115A6U?
For technical support, including MPXA6115A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA6115A6U requirements.
6.How does Aetrix verify that MPXA6115A6U is sourced from the original manufacturer or authorized distributors?
All MPXA6115A6U 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 MPXA6115A6U meets industry standards.
7.What is the process for return or replacement of MPXA6115A6U?
All MPXA6115A6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXA6115A6U, 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 MPXA6115A6U part is unused and in its original packaging.
Return procedure for MPXA6115A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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