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NXP Semiconductors MPXA6115AC6T1
- Part No.:
- MPXA6115AC6T1
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Gull Wing, Top Port
- Datasheet:
-
MPXA6115AC6T1.pdf
- Description:
- SENSOR 16.68PSIA 0.13" 4.7V
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
MPXA6115AC6T1 from NXP Semiconductors (formerly Freescale) is an absolute pressure sensor IC with monolithic silicon piezoresistive sensing element, on-chip bipolar op amp signal conditioning, and thin-film temperature compensation. It delivers 4.7 V typical full-scale output at 5.0 V supply across 15–115 kPa range, ±1.5% VFSS accuracy over 0 °C to 85 °C, and operates from −40 °C to +125 °C - used in engine MAP sensing and barometric weather stations.
For engineers reviewing the MPXA6115AC6T1 datasheet, MPXA6115AC6T1 pinout, MPXA6115AC6T1 application, or MPXA6115AC6T1 equivalent, key selection criteria include absolute pressure range (15–115 kPa), ratiometric 5 V supply operation, 1.0 ms response time, thermoplastic PPS surface-mount package (Case 98ASB17757C), and integrated temperature compensation from −40 °C to +125 °C.
Technical Context
The MPXA6115AC6T1 implements a fully integrated analog signal chain: a micromachined silicon diaphragm transduces pressure into resistance change, which is amplified and linearized by on-die bipolar op amp circuitry. Its transfer function VOUT = VS × (0.009 × P − 0.095) is factory-calibrated and temperature-compensated using thin-film resistor networks.
It operates as a ratiometric device - output voltage scales directly with supply voltage (4.75–5.25 V), enabling direct interface with microcontroller ADCs without external reference. The sealed vacuum reference cavity ensures true absolute pressure measurement, and fluorosilicone gel protects die and wire bonds while transmitting pressure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - covers manifold absolute pressure (MAP) and barometric applications from near-vacuum to ~1.13 atm. |
| Supply Voltage | 4.75–5.25 VDC - ratiometric operation ensures stable ADC scaling without external voltage reference. |
| Full-Scale Output | 4.633–4.768 V at 115 kPa and 5.0 V supply - high-level analog output eliminates need for external amplification. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0 °C to 85 °C - includes linearity, hysteresis, and temperature-induced errors. |
| Response Time | 1.0 ms (10% to 90%) - supports dynamic pressure monitoring in internal combustion engine cycles. |
| Operating Temp. | −40 °C to +125 °C - qualified for under-hood automotive environments and industrial control enclosures. |
| Package | Small Outline Package (SOP), Case 98ASB17757C - 8-pin surface-mount thermoplastic (PPS) housing with chamfered Pin 1 marker. |
Pinout & Package
MPXA6115AC6T1 uses a Durable Thermoplastic (PPS) Surface Mount Package (Case 98ASB17757C), 8-pin small outline format with 2.54 mm pitch, 10.54 × 10.54 mm body, and chamfered corner marking Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Do not connect - no internal connection; chamfered corner identifies this as Pin 1. |
| 2 | VS | Voltage supply input (4.75–5.25 VDC); powers internal op amps and sensing bridge. |
| 3 | GND | Analog ground reference for supply and output; must be low-impedance return path. |
| 4 | VOUT | Analog output voltage (0.133–4.768 V) proportional to absolute pressure; interfaces directly to 10–12-bit ADCs. |
| 5–8 | DNC | All unconnected - no internal bond wires; must remain floating, not tied to GND or VS. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Compensates offset and span over −40 °C to +125 °C using thin-film resistor networks - eliminates external calibration circuitry. |
| High-output analog signal | 4.7 V typical full-scale output at 5 V supply - reduces ADC quantization error and improves SNR in 3.3 V/5 V systems. |
| Media-resistant construction | Fluorosilicone gel isolation protects die and wire bonds from humidity and common automotive fluids - enables long-term reliability in harsh environments. |
| Monolithic silicon sensing element | Single-chip integration of piezoresistive diaphragm and signal-conditioning circuitry - ensures matched thermal coefficients and stable gain/offset drift. |
| Ratiometric transfer function | VOUT = VS × (0.009 × P − 0.095) - output scales with supply voltage, simplifying power domain design and eliminating reference voltage dependency. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Barometric Weather Station |
|---|---|
|
Use Scenario: Real-time measurement of intake manifold pressure in gasoline/diesel engines for fuel injection timing and air-fuel ratio calculation. IC Role / Device Role / Timing Role: Absolute pressure transducer providing analog voltage output synchronized to engine cycle events via ECU sampling. Use Value: ±1.5% VFSS accuracy and 1.0 ms response enable precise load estimation across wide RPM and temperature ranges, improving emissions and efficiency. |
Use Scenario: Atmospheric pressure monitoring in portable or fixed-location weather reporting devices for altitude correction and storm prediction. IC Role / Device Role / Timing Role: High-stability absolute pressure sensor delivering calibrated analog output for microcontroller-based data logging and wireless transmission. Use Value: −40 °C to +125 °C operating range and thermoplastic PPS package ensure reliable outdoor deployment; 15–115 kPa range covers sea-level to 3000 m elevation. |
| Industrial HVAC Control | Medical Respiratory Equipment |
|
Use Scenario: Differential pressure monitoring across air filters and ducts in commercial HVAC systems to trigger maintenance alerts and optimize fan speed. IC Role / Device Role / Timing Role: Absolute pressure reference node in dual-sensor differential configurations, enabling drift-compensated ΔP computation. Use Value: On-chip temperature compensation maintains accuracy across ambient shifts (e.g., rooftop units), reducing recalibration frequency and service costs. |
Use Scenario: Airway pressure sensing in portable ventilators and CPAP machines to regulate inspiratory/expiratory pressure delivery. IC Role / Device Role / Timing Role: Safety-critical pressure feedback element in closed-loop respiratory control systems requiring fast, repeatable analog output. Use Value: 1.0 ms response time and ±0.25% VFSS offset stability over 1000 pressure cycles support compliant breathing waveform generation and patient safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXH6115AC6T1 | Super Small Outline Package (Case 98ARH99089A), same 15–115 kPa range and ±1.5% accuracy, but smaller footprint (7.62 × 5.08 mm vs. 10.54 × 10.54 mm). | Preferred where PCB space is constrained (e.g., wearable medical sensors); identical electrical specs but different thermal mass and mounting geometry. | Select MPXH6115AC6T1 when board area is limited and reflow profile accommodates SSOP thermal characteristics. |
| MPXAZ6115AC6T1 | Includes media-resistant fluorosilicone gel encapsulation optimized for exposure to aggressive automotive fluids (e.g., oil, coolant vapor); otherwise identical electrical performance. | Suitable for under-hood locations with direct fluid contact risk; MPXA6115AC6T1 is rated for high humidity but not liquid immersion. | Choose MPXAZ6115AC6T1 for engine bay mounting near valve covers or turbochargers where condensate or splash exposure occurs. |
Compared with MPXH6115AC6T1 and MPXAZ6115AC6T1, the MPXA6115AC6T1 offers optimal balance of proven reliability, standard SOP handling, and cost-efficiency for non-immersive automotive and industrial applications - while retaining full compatibility with existing SOP layout footprints and reflow profiles.
Availability
MPXA6115AC6T1 is available at Aetrix Electronics and suitable for engine control units, weather station instrumentation, and industrial HVAC systems requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MPXA6115AC6T1 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 Semiconductor in 2015 and continues to support its legacy sensor portfolio with full documentation, qualification data, and manufacturing continuity.
The MPXA6115AC6T1 belongs to NXP's MPXxx6115A series of monolithic, signal-conditioned absolute pressure sensors - designed specifically for automotive engine management, industrial process control, and environmental monitoring where high accuracy and rugged packaging are essential.
FAQ
What is the pressure reference type of the MPXA6115AC6T1?
The MPXA6115AC6T1 is an absolute pressure sensor with a sealed vacuum reference cavity. It measures pressure relative to perfect vacuum, not ambient atmospheric pressure or another port. This makes it suitable for barometric sensing and manifold absolute pressure (MAP) applications where reference stability is critical. The MPXA6115AC6T1's output voltage corresponds directly to absolute pressure across its 15–115 kPa range.
Does the MPXA6115AC6T1 require external calibration or trimming?
No, the MPXA6115AC6T1 does not require external calibration. It features factory-trimmed, on-chip temperature compensation using thin-film resistor networks and bipolar op amp circuitry. All calibration data - including offset, full-scale span, and temperature coefficients - is permanently laser-trimmed during manufacturing. Users can interface the MPXA6115AC6T1 directly to an ADC without additional hardware compensation.
What is the maximum pressure the MPXA6115AC6T1 can withstand without damage?
The MPXA6115AC6T1 has a maximum pressure rating of 400 kPa (absolute), as specified in its absolute maximum ratings table. While its functional range is 15–115 kPa, it can survive short-term overpressure events up to 400 kPa without permanent damage. Operation beyond this limit may cause irreversible mechanical or electrical degradation. The MPXA6115AC6T1 should never be exposed to pressures exceeding 400 kPa in any application.
Can the MPXA6115AC6T1 operate from a 3.3 V supply?
No, the MPXA6115AC6T1 is specified only for 4.75–5.25 VDC supply operation. Its internal op amp circuitry and ratiometric transfer function assume a nominal 5.0 V excitation. Supplying 3.3 V will result in insufficient headroom for the output stage, causing saturation, reduced full-scale span, and loss of accuracy. The MPXA6115AC6T1 must be powered from a regulated 5 V rail - not 3.3 V - to meet datasheet performance.
Is the MPXA6115AC6T1 RoHS-compliant and lead-free?
Yes, the MPXA6115AC6T1 is RoHS-compliant and lead-free. As a Freescale/NXP product manufactured after 2006 and documented in Rev. 7.3 (2015) of its datasheet, it conforms to EU Directive 2011/65/EU and subsequent amendments. The thermoplastic PPS package (Case 98ASB17757C) and internal metallization meet JEDEC J-STD-609A Class 3 moisture sensitivity and Pb-free soldering requirements.
MPXA6115AC6T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA6115A
- Package/Case:
- 8-SMD, Gull Wing, Top Port
- Packaging:
- Tape & Reel (TR)
- 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:
- Gull Wing
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MPXA6115AC6T1 FAQ
1.How can I place an order for MPXA6115AC6T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA6115AC6T1 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 MPXA6115AC6T1 reliable?
The price and inventory of MPXA6115AC6T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA6115AC6T1 is usually 5 days.
3.What payment methods are accepted for MPXA6115AC6T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA6115AC6T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA6115AC6T1?
MPXA6115AC6T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA6115AC6T1 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 MPXA6115AC6T1?
For technical support, including MPXA6115AC6T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA6115AC6T1 requirements.
6.How does Aetrix verify that MPXA6115AC6T1 is sourced from the original manufacturer or authorized distributors?
All MPXA6115AC6T1 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 MPXA6115AC6T1 meets industry standards.
7.What is the process for return or replacement of MPXA6115AC6T1?
All MPXA6115AC6T1 units undergo pre-shipment inspection (PSI). If there is an issue with MPXA6115AC6T1, 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 MPXA6115AC6T1 part is unused and in its original packaging.
Return procedure for MPXA6115AC6T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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