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NXP Semiconductors MPXA6115A6T1
- Part No.:
- MPXA6115A6T1
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
MPXA6115A6T1.pdf
- Description:
- SENSOR 16.68PSIA 4.7V
- Quantity:
- Payment:
- Shipping:
Inventory:600
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Product details
Overview
MPXA6115A6T1 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 a ratiometric analog voltage output (0.200 V to 4.700 V) over a 15–115 kPa range at 5.0 V supply, with ±1.5% full-scale span accuracy from 0 °C to 85 °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 MPXA6115A6T1 datasheet, MPXA6115A6T1 pinout, MPXA6115A6T1 application, or MPXA6115A6T1 equivalent, key selection considerations include its absolute pressure range, ratiometric 5 V operation, integrated temperature compensation from −40 °C to +125 °C, 1.0 ms response time, and compatibility with microcontroller ADC interfaces requiring stable analog pressure feedback.
Technical Context
The MPXA6115A6T1 integrates a micromachined silicon diaphragm with piezoresistive elements, thin-film metallization, and bipolar op-amp circuitry on a single die. Its transfer function is VOUT = VS × (0.009 × P − 0.095), where VS = 5.0 V and P is absolute pressure in kPa - enabling direct linear interpretation without external calibration.
On-chip temperature compensation corrects for TcOffset and TcSpan across −40 °C to +125 °C, with error bands scaled by temperature multipliers (1× at 0–85 °C, 3× at −40 °C, 1.75× at 125 °C). The sealed vacuum reference cavity ensures true absolute pressure measurement, and fluorosilicone gel protects wire bonds while transmitting pressure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15–115 kPa absolute - matches automotive MAP and barometric applications requiring low-to-mid range vacuum/pressure detection. |
| Supply Voltage | 4.75–5.25 VDC - ratiometric operation ensures output scaling remains proportional to supply, simplifying ADC reference design. |
| Output Voltage Range | 0.133–4.768 VDC - spans >4.5 V full-scale span at 5 V supply, delivering high SNR for 10–12-bit microcontroller ADCs. |
| Accuracy | ±1.5% VFSS over 0 °C to 85 °C - includes linearity, temperature hysteresis, pressure hysteresis, and TcSpan/TcOffset errors per spec. |
| Response Time | 1.0 ms (10%–90%) - enables real-time dynamic pressure tracking in intake manifold transients and weather station sampling. |
| Operating Temperature | −40 °C to +125 °C - supports under-hood automotive deployment and industrial environmental monitoring. |
| Sensitivity | 45.0 mV/kPa - provides predictable, linear gain for deterministic firmware scaling without lookup tables. |
Pinout & Package
MPXA6115A6T1 uses a small outline package (Case 98ASB17756C), 8-pin, surface-mount, thermoplastic (PPS) body with chamfered corner marking Pin 1. Dimensions: 10.67 mm × 12.95 mm × 3.20 mm (L × W × H), lead pitch 2.54 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Do not connect - internal test pad; floating connection avoids noise coupling or parasitic loading. |
| 2 | VS | Voltage supply input - must be regulated 5.0 V ±0.25 V; supplies both sensor bridge and signal conditioning circuitry. |
| 3 | GND | Analog ground reference - requires low-impedance, dedicated return path to minimize offset drift and noise. |
| 4 | VOUT | Analog output voltage - ratiometric, buffered, source-capable up to 0.5 mA; connects directly to MCU ADC input. |
| 5–8 | DNC | Do not connect - unused internal bond pads; must remain unconnected to prevent malfunction or ESD vulnerability. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic signal-conditioned architecture | Integrates piezoresistive bridge, amplifier, and temperature compensation on one silicon die - eliminates external component count and inter-stage matching errors. |
| Fluorosilicone gel isolation | Protects die and wire bonds from humidity and common automotive fluids while preserving pressure transmission - enables reliable operation in harsh under-hood environments. |
| 1.5% max error over 0–85 °C | Guaranteed total error band includes linearity, hysteresis, and thermal effects - reduces need for system-level calibration in cost-sensitive OEM designs. |
| −40 °C to +125 °C temperature compensation | On-chip compensation active across full operating range - maintains accuracy without external thermistor networks or firmware correction tables. |
| Durable PPS surface-mount package | Thermoplastic housing withstands reflow soldering and mechanical stress - supports automated PCB assembly and long-term vibration resistance. |
Applications
| Engine Manifold Absolute Pressure (MAP) | Barometric Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold vacuum/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 output synchronized to engine cycle events via ECU ADC sampling. Use Value: Enables closed-loop air-fuel ratio control with <1.5% pressure error, improving emissions compliance and fuel efficiency without external temperature sensors. |
Use Scenario: Altitude and weather trend detection in portable weather stations and IoT environmental monitors. IC Role / Device Role / Timing Role: Primary absolute pressure sensing element feeding calibrated digital output via microcontroller ADC and firmware compensation. Use Value: Delivers stable 15–115 kPa range coverage with <1 ms response, supporting sub-100 Pa resolution after oversampling - sufficient for 1-meter altitude resolution. |
| Industrial Vacuum Control | Medical Respiratory Equipment |
Use Scenario: Feedback control of vacuum levels in semiconductor process chambers and packaging machinery. IC Role / Device Role / Timing Role: Analog pressure feedback device interfaced to PLC analog input or embedded controller ADC for PID loop closure. Use Value: Ratiometric output and wide temperature range ensure consistent performance across factory ambient shifts, reducing recalibration frequency. |
Use Scenario: Airway pressure monitoring in portable ventilators and CPAP devices requiring safety-critical pressure feedback. IC Role / Device Role / Timing Role: Primary absolute pressure sensor in patient breathing circuit, providing real-time inspiratory/expiratory pressure data. Use Value: ±1.5% VFSS accuracy and 1 ms response support fast pressure waveform capture, meeting IEC 60601-2-12 respiratory device timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXH6115A6T1 | 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; identical electrical specs but different thermal mass and mounting geometry. | Select MPXH6115A6T1 when PCB area is limited and reflow profile accommodates SSOP thermal characteristics. |
| MPXAZ6115AC6T1 | Includes media-resistant fluorosilicone gel encapsulation optimized for aggressive automotive fluids; otherwise identical pressure range and accuracy. | Required for direct exposure to oil, coolant, or brake fluid; standard MPXA6115A6T1 is rated for dry air only. | Choose MPXAZ6115AC6T1 for under-hood locations with potential fluid contact; MPXA6115A6T1 suffices for clean-air MAP or barometric use. |
Compared with MPXH6115A6T1 and MPXAZ6115AC6T1, the MPXA6115A6T1 offers the largest package footprint (Case 98ASB17756C) and standard environmental protection - making it optimal for prototyping, manual rework, and applications where mechanical robustness outweighs miniaturization needs.
Availability
MPXA6115A6T1 is available at Aetrix Electronics and suitable for engine control units, weather station instrumentation, and industrial vacuum systems requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for MPXA6115A6T1 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 is a global semiconductor company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions, automotive MCUs, and intelligent sensors.
The MPXA6115A6T1 belongs to NXP's legacy MPXxx6115A series of monolithic absolute pressure sensors, designed specifically for cost-sensitive, high-reliability automotive and industrial applications requiring integrated signal conditioning and wide-temperature operation.
FAQ
What is the pressure range and output behavior of the MPXA6115A6T1?
The MPXA6115A6T1 measures absolute pressure from 15 kPa to 115 kPa. Its output is a ratiometric analog voltage ranging from 0.133 V (at 15 kPa) to 4.768 V (at 115 kPa) when supplied with 5.0 V. The nominal transfer function is VOUT = VS × (0.009 × P − 0.095), where P is pressure in kPa. This linear relationship allows straightforward firmware conversion without complex calibration - a core design feature of the MPXA6115A6T1.
Does the MPXA6115A6T1 require external temperature compensation?
No, the MPXA6115A6T1 includes fully integrated on-chip temperature compensation covering −40 °C to +125 °C. Its accuracy specification of ±1.5% VFSS over 0 °C to 85 °C already accounts for TcOffset and TcSpan errors. External thermistors or software compensation tables are unnecessary - the MPXA6115A6T1 delivers calibrated output directly from the VOUT pin.
What is the meaning of "DNC" pins on the MPXA6115A6T1 pinout?
On the MPXA6115A6T1, Pins 1 and 5–8 are labeled DNC (Do Not Connect). These are internal test or unused bond pads with no electrical function in normal operation. Connecting them to ground, supply, or any other node may cause unpredictable behavior, increased noise, or permanent damage. The MPXA6115A6T1 must be mounted with these pins left floating and un-soldered per Freescale/NXP design guidance.
Can the MPXA6115A6T1 be used with a 3.3 V microcontroller ADC?
The MPXA6115A6T1 requires a 4.75–5.25 V supply and is not rated for 3.3 V operation. While its output voltage (0.133–4.768 V) exceeds typical 3.3 V ADC input ranges, direct connection risks saturation or clipping. To interface with a 3.3 V MCU, use a precision resistive divider or rail-to-rail op-amp buffer - but maintain the MPXA6115A6T1's VS pin at 5.0 V. The MPXA6115A6T1 itself must never be powered from 3.3 V.
Is the MPXA6115A6T1 compatible with automotive fluids such as engine oil or coolant?
No - the standard MPXA6115A6T1 is qualified for dry air only. Exposure to oils, coolants, or brake fluids may degrade long-term reliability or cause drift. For fluid-exposed applications, select the MPXAZ6115AC6T1 variant, which adds media-resistant fluorosilicone gel encapsulation. Always verify chemical compatibility with NXP's application notes before deploying the MPXA6115A6T1 in non-dry-air environments.
MPXA6115A6T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA6115A
- Package/Case:
- 8-SMD Module
- 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:
- -
- 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:
- -
MPXA6115A6T1 FAQ
1.How can I place an order for MPXA6115A6T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA6115A6T1 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 MPXA6115A6T1 reliable?
The price and inventory of MPXA6115A6T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA6115A6T1 is usually 5 days.
3.What payment methods are accepted for MPXA6115A6T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA6115A6T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA6115A6T1?
MPXA6115A6T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA6115A6T1 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 MPXA6115A6T1?
For technical support, including MPXA6115A6T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA6115A6T1 requirements.
6.How does Aetrix verify that MPXA6115A6T1 is sourced from the original manufacturer or authorized distributors?
All MPXA6115A6T1 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 MPXA6115A6T1 meets industry standards.
7.What is the process for return or replacement of MPXA6115A6T1?
All MPXA6115A6T1 units undergo pre-shipment inspection (PSI). If there is an issue with MPXA6115A6T1, 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 MPXA6115A6T1 part is unused and in its original packaging.
Return procedure for MPXA6115A6T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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