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NXP Semiconductors MPXA6115AC7U
- Part No.:
- MPXA6115AC7U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-DIP (0.550", 13.97mm), Top Port
- Datasheet:
-
MPXA6115AC7U.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 4.7V 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,003
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Product details
Overview
MPXA6115AC7U from Freescale Semiconductor is an absolute pressure sensor IC with 15–115 kPa full-scale range, ratiometric analog output (0.200 V to 4.700 V at 5.0 V supply), ±1.5% VFSS accuracy over 0 °C to 85 °C, and on-chip temperature compensation from −40 °C to +125 °C. It serves as a signal-conditioned transducer in engine MAP sensing and barometric measurement systems.
For engineers reviewing the MPXA6115AC7U datasheet, MPXA6115AC7U pinout, MPXA6115AC7U application, or MPXA6115AC7U equivalent, this device requires attention to its 8-pin SOP package (Case 98ASB17759C), single-port absolute pressure interface, voltage-supply-dependent transfer function, and gel-isolated die for media resistance-key factors in automotive and industrial sensor integration.
Technical Context
The MPXA6115AC7U integrates a piezoresistive silicon diaphragm with bipolar op-amp signal conditioning and thin-film resistor networks to deliver a high-level analog output directly proportional to absolute pressure. Its monolithic construction includes fluorosilicone gel isolation for environmental protection and a sealed vacuum reference cavity.
It operates ratiometrically with 4.75–5.25 V supply, delivers 6.0 mA typical supply current, exhibits 1.0 ms response time, and maintains offset stability of ±0.25% VFSS after 1000 pressure cycles. The transfer function is defined as VOUT = VS × (0.009 × P − 0.095), where P is pressure in kPa and VS is supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - defines usable operating window for manifold or barometric pressure measurement. |
| Output Voltage Range | 0.200 V to 4.700 V at VS = 5.0 V - provides 4.5 V full-scale span compatible with 5 V ADC references. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0 °C to 85 °C - ensures calibrated pressure reading without external correction. |
| Supply Voltage | 4.75–5.25 V DC - supports standard 5 V rail with ±5% tolerance; output scales linearly with supply. |
| Response Time | 1.0 ms (10% to 90%) - enables real-time pressure tracking in dynamic combustion or weather systems. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments. |
| Package | 8-pin Small Outline Package (SOP), Case 98ASB17759C - surface-mountable with 2.54 mm pitch and chamfered corner pin 1 marker. |
Pinout & Package
MPXA6115AC7U uses an 8-pin small outline package (Case 98ASB17759C) with gull-wing leads, 2.54 mm pitch, and thermoplastic (PPS) body. Pin 1 is identified by a chamfered corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Do not connect - electrically isolated; used only for mechanical alignment and pin 1 identification. |
| 2 | VS | Voltage supply input - must be 4.75–5.25 V DC; powers internal amplifier and sensing element. |
| 3 | GND | Analog ground reference - return path for supply and output; requires low-impedance connection to system ground plane. |
| 4 | VOUT | Analog output voltage - ratiometric, 0.200–4.700 V over pressure range; connects directly to ADC input. |
| 5–8 | DNC | Do not connect - no internal connection; must remain floating per datasheet specification. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated from −40 °C to +125 °C - eliminates need for external thermal calibration circuitry in wide-temperature deployments. |
| Fluorosilicone gel isolation | Protects die and wire bonds from humidity and automotive fluids - enables reliable operation in under-hood MAP sensors. |
| Ratiometric output | Output scales linearly with supply voltage - allows shared 5 V reference between sensor and ADC for improved system-level accuracy. |
| High-level analog output | 4.5 V full-scale span at 5 V supply - reduces susceptibility to noise and avoids gain-stage amplification in signal chain. |
| Durable PPS package | Thermoplastic housing rated for reflow soldering - supports automated PCB assembly and long-term mechanical stability. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Barometric Pressure Monitoring |
|---|---|
|
Use Scenario: Real-time intake manifold pressure measurement during variable valve timing and turbo boost control. IC Role / Device Role / Timing Role: Absolute pressure transducer providing analog feedback to ECU for air mass calculation and fuel trim. Use Value: ±1.5% VFSS accuracy and −40 °C to +125 °C operation ensure stable AFR control across cold start and high-load conditions. |
Use Scenario: Altitude-compensated weather station reporting with local atmospheric pressure logging. IC Role / Device Role / Timing Role: Primary barometric sensor delivering calibrated kPa output for microcontroller-based environmental data processing. Use Value: Ratiometric 0.2–4.7 V output interfaces directly with 12-bit ADCs without external scaling, reducing BOM count. |
| Industrial Vacuum Control | Medical Respiratory Equipment |
|
Use Scenario: Closed-loop vacuum regulation in semiconductor process tools requiring precise 15–115 kPa setpoints. IC Role / Device Role / Timing Role: Feedback element in PID-controlled vacuum pump system, updating every 1 ms. Use Value: 1.0 ms response time and ±0.25% VFSS offset stability support repeatable vacuum hold within ±0.5 kPa tolerance. |
Use Scenario: Pressure monitoring in portable ventilators measuring patient airway pressure during inhalation/exhalation cycles. IC Role / Device Role / Timing Role: Safety-critical absolute pressure sensor feeding real-time data to embedded safety controller. Use Value: Sealed vacuum reference and fluorosilicone gel isolation prevent drift from moisture exposure in humid clinical environments. |
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 lower 3.5 mA supply current. | Designed for space-constrained PCBs; lacks media-resistant gel coating - unsuitable for high-humidity automotive under-hood use. | Select when board area is critical and environmental exposure is controlled (e.g., indoor industrial enclosures). |
| MPXAZ6115AC6T1 | Same SOP package (Case 98ASB17757C) with fluorosilicone gel, but specified for media resistance against aggressive automotive fluids (e.g., brake fluid, coolant). | Higher cost and longer lead time; identical electrical specs but enhanced chemical compatibility testing. | Select when direct exposure to automotive liquids is expected beyond standard humidity resistance. |
Compared with MPXH6115A6U, MPXA6115AC7U offers superior environmental robustness via gel isolation and matches footprint requirements for legacy SOP layouts; versus MPXAZ6115AC6T1, it provides identical form factor and baseline performance at lower cost where full media resistance is not required.
Availability
MPXA6115AC7U is available at Aetrix Electronics and suitable for engine control units, weather instrumentation, industrial vacuum regulators, and medical respiratory devices requiring stable component supply and long-lifecycle support.
Supply support for MPXA6115AC7U 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 global leader in embedded processing and sensor solutions, specializing in automotive, industrial, and IoT applications.
The MPXA6115AC7U belongs to Freescale's MPXxx6115A series of integrated absolute pressure sensors, designed specifically for high-reliability analog pressure measurement in harsh environments where signal conditioning, temperature stability, and media resistance are critical.
FAQ
What is the pressure range and output behavior of the MPXA6115AC7U?
The MPXA6115AC7U measures absolute pressure from 15 kPa to 115 kPa. Its output voltage ranges from 0.200 V to 4.700 V at a 5.0 V supply, following the ratiometric transfer function VOUT = VS × (0.009 × P − 0.095). This linear relationship enables direct interfacing with microcontroller ADCs without external amplification or scaling circuitry, and the output remains stable across its specified temperature range.
Does the MPXA6115AC7U require external calibration or compensation components?
No, the MPXA6115AC7U does not require external calibration or compensation components. It integrates on-chip temperature compensation over −40 °C to +125 °C and factory-trimmed resistor networks that deliver ±1.5% VFSS accuracy across 0 °C to 85 °C. All signal conditioning-including offset, span, and thermal error correction-is performed internally, eliminating the need for external op-amps, thermistors, or digital correction algorithms in most implementations of MPXA6115AC7U.
What is the package type and mounting configuration for MPXA6115AC7U?
The MPXA6115AC7U uses an 8-pin small outline package (SOP) designated Case 98ASB17759C, with gull-wing leads, 2.54 mm pitch, and thermoplastic (PPS) body. Pin 1 is marked by a chamfered corner. It is designed for surface-mount reflow assembly and complies with JEDEC MS-012 standards. The package includes a sealed vacuum reference and fluorosilicone gel isolation over the die, supporting reliable operation in humid or chemically exposed environments.
Can MPXA6115AC7U be used in differential or gauge pressure configurations?
No, the MPXA6115AC7U is strictly an absolute pressure sensor with a sealed vacuum reference cavity. It is not configurable for differential or gauge pressure measurement. Its single port is designed for absolute pressure input referenced to internal vacuum, and the datasheet confirms no alternate porting or internal routing options exist. For differential or gauge applications, engineers must select other members of the MPXxx6115A family such as MPXH6115A (differential) or MPXHZ6115A (gauge), which have distinct pinouts and internal structures.
What are the key reliability features of MPXA6115AC7U relevant to automotive applications?
The MPXA6115AC7U incorporates fluorosilicone gel isolation to protect the silicon die and wire bonds from humidity and common automotive media, along with a durable thermoplastic (PPS) surface-mount package qualified for reflow soldering. It is rated for −40 °C to +125 °C operation, meets AEC-Q200 stress test requirements for passive components, and demonstrates ±0.25% VFSS offset stability after 1000 pressure cycles - all critical for under-hood engine control and MAP sensing where long-term drift and environmental resilience are mandatory for MPXA6115AC7U deployment.
MPXA6115AC7U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA6115A
- Package/Case:
- 8-DIP (0.550", 13.97mm), Top Port
- 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:
- 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
MPXA6115AC7U FAQ
1.How can I place an order for MPXA6115AC7U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA6115AC7U 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 MPXA6115AC7U reliable?
The price and inventory of MPXA6115AC7U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA6115AC7U is usually 5 days.
3.What payment methods are accepted for MPXA6115AC7U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA6115AC7U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA6115AC7U?
MPXA6115AC7U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA6115AC7U 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 MPXA6115AC7U?
For technical support, including MPXA6115AC7U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA6115AC7U requirements.
6.How does Aetrix verify that MPXA6115AC7U is sourced from the original manufacturer or authorized distributors?
All MPXA6115AC7U 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 MPXA6115AC7U meets industry standards.
7.What is the process for return or replacement of MPXA6115AC7U?
All MPXA6115AC7U units undergo pre-shipment inspection (PSI). If there is an issue with MPXA6115AC7U, 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 MPXA6115AC7U part is unused and in its original packaging.
Return procedure for MPXA6115AC7U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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