MPXAZ6115APT1 - 15-115kPa Absolute Pressure Sensor | NXP
MPN: MPXAZ6115APT1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.5 | $13.50 |
| 10 | $12.2 | $122.00 |
| 100 | $11.05 | $1,105.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $8.95 | $8,950.00 |
MPXAZ6115APT1 Overview
An integrated absolute pressure sensor is a transducer that converts applied pressure into a linear analog voltage proportional to the difference between the sensed pressure and a sealed internal vacuum reference. Unlike gauge sensors that vent to atmosphere, absolute sensors embed a fixed vacuum cavity so the output reflects total pressure at the port. In the broader sensor hierarchy, this device sits at the intersection of MEMS transducers and analog signal-chain components, providing a calibrated interface between physical media and downstream ADCs, microcontrollers, or displays without requiring external compensation circuitry.
Key features include a 4.7 V full-scale output (typical 4.5 V nominal, maximum 4.8 V per device characterization), on-chip temperature compensation from -40 C to +125 C, media-resistant port construction suitable for non-corrosive gases, and an accuracy band adequate for consumer and industrial barometric applications. The 5 V single-supply operation simplifies interface to 5 V ADCs and standard MCU analog front-ends. The trimmed offset and span calibrations eliminate the need for external potentiometers in most designs.
The device uses a patented silicon strain-gauge MEMS bridge coupled to a bipolar signal-conditioning ASIC. The bridge output is amplified, offset-trimmed, span-normalized, and temperature-compensated entirely on-chip, which removes the long calibration procedure typical of raw die pressure sensors. The SMD gull-wing package isolates the sensing die from PCB stress and provides repeatable thermal contact with the surrounding package mass.
Typical applications include altimeters and barometric pressure measurement in portable GPS, weather stations, HVAC control loops, tire-pressure monitoring accessories, and industrial pneumatic system monitoring. The absolute reference makes it well-suited to altitude computation, where atmospheric pressure at sea level serves as the anchor.
When designing with the MPXAZ6115APT1, place the device away from PCB flex points and avoid mechanical stress on the side port to preserve calibration accuracy. Add a small RC filter at the output to attenuate EMI in industrial installations, and provide adequate clearance around the port for tubing attachments.
This page synthesizes distributor pricing, drop-in alternative parts, and practical design considerations not consolidated in any single manufacturer datasheet, giving procurement and design engineers a single decision-ready reference.
Drop-in alternatives for MPXAZ6115APT1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MPXAZ6115APT1 (same form factor and footprint) — differing in Package, Port Style, Signal Conditioning, Operating Temperature, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXAZ6115AP
✅ Drop-In✓ In Stock
$10.3 / Unit
View Datasheet →MPXAZ6115AC6U
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.4 / Unit
View Datasheet →MPXAZ6115A6T1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPXA6115AC6U
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →MPXA6115A6U
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.8 / Unit
View Datasheet →MPXAZ6115APT1 Maximum Ratings & Electrical Characteristics
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Output Voltage Range | 0.2 V to 4.7 V |
| Supply Voltage | 4.75 V to 5.25 V (5 V nominal) |
| Output Type | Analog, ratiometric |
| Port Style | Male 0.13 inch (3.17 mm) tube, side port |
| Package | 8-SMD, Gull Wing |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +125 C |
| Media Compatibility | Media resistant (non-corrosive gases) |
| Bridge Type | On-chip silicon strain-gauge (piezo-resistive) |
| Signal Conditioning | On-chip, temperature compensated and calibrated |
| RoHS Status | Compliant |
MPXAZ6115APT1 Pin Configuration
| Pin 1 | GND — Ground (primary pad) |
| Pin 2 | Vout — Analog ratiometric output voltage |
| Pin 3 | Vs — 5 V supply voltage |
| Pin 4 | NC/GND — Mechanical/thermal pad, tied to GND recommended |
| Pin 5 | NC/Vout — Mechanical/thermal pad, tied to Vout recommended |
| Pin 6 | NC/Vs — Mechanical/thermal pad, tied to Vs recommended |
| Pin 7 | NC/GND — Mechanical/thermal pad, tied to GND recommended |
| Pin 8 | NC — Mechanical/thermal pad, no connection required |
Typical Applications
MPXAZ6115APT1 is suitable for 6 applications: Barometric Altimeter for Handheld GPS, Weather Station Barometric Pressure Sensing, HVAC Air Pressure Monitoring, Industrial Pneumatic System Pressure Monitor, Portable Medical Respiratory Monitor, Automotive Altitude Compensation for Engine Management.
Barometric Altimeter for Handheld GPS
The MPXAZ6115APT1 suits handheld GPS altimeters because its 15 to 115 kPa absolute span maps directly to altitudes from approximately -500 m to +9000 m, and the 0.2 V to 4.7 V ratiometric output drives a 5 V ADC without external amplification. On-chip temperature compensation removes the dominant pressure error across the -40 C to +125 C range typical of outdoor portable devices. With 10 m typical altitude resolution when paired with a 10-bit ADC and the linear transfer function, it enables GPS-augmented elevation tracking. The 8-SMD side-port package is compact enough for sub-50 mm square GPS receiver boards, and media-resistant construction tolerates humid outdoor environments.
Recommended
Weather Station Barometric Pressure Sensing
The MPXAZ6115APT1 fits consumer and prosumer weather stations because absolute pressure measurement is exactly what meteorological barometric readings require, eliminating the need for a separate atmospheric reference. The 5 V single-supply operation matches typical weather-station MCU rails, simplifying power design. The -40 C to +125 C operating range covers outdoor deployments from arctic to desert climates, while on-chip temperature compensation preserves accuracy across daily thermal cycles. Side-port tubing allows easy enclosure mounting with internal-to-external pressure routing, and the analog output integrates directly with low-cost MCUs that lack digital sensor interfaces.
Recommended
HVAC Air Pressure Monitoring
The MPXAZ6115APT1 suits HVAC pressure-monitoring applications because its 15 to 115 kPa range comfortably covers duct static-pressure measurements typical of residential and light-industrial systems. The 5 V supply matches standard HVAC control-board rails, and the analog ratiometric output interfaces with the on-board ADC of any common HVAC microcontroller without I2C overhead. On-chip signal conditioning eliminates the calibration step that would otherwise be required during HVAC controller manufacturing, reducing production test time. Media-resistant port construction tolerates the dust and humidity exposure common in air-handling environments.
Recommended
Industrial Pneumatic System Pressure Monitor
The MPXAZ6115APT1 fits industrial pneumatic monitoring where absolute pressure readings verify compressor output and detect downstream leaks in 0 to 8 bar pneumatic distribution networks. The 5 V supply and on-chip temperature compensation reduce bill-of-materials cost in distributed pressure nodes deployed across factory floors. Side-port tube mounting accommodates the pneumatic fitting standards common in industrial pneumatics, and the analog output enables simple twisted-pair wiring back to a remote ADC. RoHS-compliant construction meets industrial environmental compliance requirements.
Recommended
Portable Medical Respiratory Monitor
The MPXAZ6115APT1 suits portable medical respiratory devices such as spirometers and CPAP accessory monitors because its 15 to 115 kPa absolute range spans the small pressure variations used in breath-flow measurement when referenced to atmospheric. On-chip signal conditioning provides calibrated output without iterative in-device calibration, simplifying FDA documentation for Class II accessories. Media-resistant port construction allows inline tubing without contamination concerns, and the small 8-SMD package enables handheld form factors. The 5 V analog interface pairs with medical-grade analog front-ends without digital noise interference.
Recommended
Automotive Altitude Compensation for Engine Management
The MPXAZ6115APT1 supports automotive altitude compensation in engine management modules where atmospheric pressure determines fuel and spark calibration maps. The 15 to 115 kPa absolute range covers all elevations encountered by road vehicles, and the on-chip temperature compensation preserves accuracy across the underhood thermal environment. The 8-SMD package survives automotive vibration profiles, and the ratiometric analog output interfaces with legacy ECU analog inputs. While not AEC-Q100 qualified itself, the MPXAZ6115APT1 functions as a development and non-safety-critical reference in ECU prototypes.
Recommended
Recommended Products Summary
Engineering reference data for MPXAZ6115APT1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXAZ6115AP | MPXAZ6115AC6U | MPXAZ6115A6T1 | MPXA6115AC6U | MPXA6115A6U |
|---|---|---|---|---|---|---|
| Package | 8-SMD, Gull Wing, side port | 8-SMD, Gull Wing, side port (same) | 8-SMD, Gull Wing, side port (same) | 8-SMD, Gull Wing, side port (same) | 8-SMD, Gull Wing, side port (same) | 8-SMD, Gull Wing, side port (same) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Range (kPa) | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa |
| Output Voltage | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Port Style | Side male tube 0.13 inch | Side male tube 0.13 inch (same) | Side male tube 0.13 inch (same) | Side male tube 0.13 inch (same) | Side male tube 0.13 inch (same) | Side male tube 0.13 inch (same) |
| Temperature Compensation | On-chip, -40C to +125C | On-chip, -40C to +125C | On-chip, -40C to +125C | On-chip, -40C to +125C | On-chip, -40C to +125C | On-chip, -40C to +125C |
| Packaging Format | Tape & Reel (T1) | Tray | Tube | Tape & Reel | Tube | Tape & Reel |
Key Differentiators
- Side-port tube mounting in 8-SMD package (vs MPXAZ6115AC6U)
- Tape-and-reel packaging for high-volume assembly (vs MPXAZ6115AP)
- Absolute pressure reference with on-chip temperature compensation (vs MPXA6115A6U)
Design Notes
Place the MPXAZ6115APT1 away from PCB bending zones and keep the side port clear of obstructions. The 8-SMD package has duplicate ground and supply pads that should be soldered to large copper pours for thermal stability and mechanical rigidity. Avoid routing high-current traces beneath the package to prevent stress on the sensing die. Provide at least 5 mm clearance around the port for tubing attachment and strain relief. Use a star-ground topology to keep switching noise from coupling into the analog output.
Add a low-pass RC filter (10 kohm + 100 nF typical) at the Vout pin to attenuate EMI in industrial installations. The output is ratiometric to Vs, so use a clean, well-decoupled 5 V supply; a ferrite bead between the analog and digital 5 V rails is recommended. Trace length from the sensor output to the ADC should be kept under 50 mm to minimize capacitive loading and noise pickup. If long cable runs are unavoidable, buffer the output with an op-amp such as the MCP607 before driving the cable.
Do not apply pressure exceeding 200 kPa to the side port; permanent die damage may result. Avoid exposing the port to corrosive gases, liquids, or particulate contamination that can degrade the media-resistant barrier. Ensure the supply voltage never exceeds 5.25 V or drops below 4.75 V, as the ratiometric output is calibrated to a 5 V nominal supply. Decoupling capacitor (100 nF ceramic) must be placed within 5 mm of the Vs pin. The unused pads are not no-connect; tie them to their respective signals per the datasheet to ensure thermal and mechanical reliability.
Compliance Information
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified; not recommended for safety-critical automotive applications. Halogen-free per NXP environmental compliance datasheet.
