MPXAZ6115AP - 15-115 kPa Absolute Pressure Sensor, Side Port | NXP
MPN: MPXAZ6115AP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $16.1 | $16.10 |
| 10 | $14.49 | $144.90 |
| 100 | $12.88 | $1,288.00 |
| 500 | $11.59 | $5,795.00 |
| 1,000 | $10.3 | $10,300.00 |
MPXAZ6115AP Overview
A pressure sensor is a transducer that converts an applied pneumatic or hydraulic pressure into a proportional electrical signal. In the broader system taxonomy it sits at the sensing layer: physical stimulus -> transducer -> signal conditioning -> ADC/MCU -> display or control bus. Absolute pressure sensors specifically measure pressure referenced to a sealed vacuum cavity rather than ambient atmosphere, making them the correct topology for barometric altitude, sealed-cavity pressure, and vacuum-relative measurements.
Key features of the MPXAZ6115AP include a 5 V nominal supply (4.75 V to 5.25 V), 0.2 V to 4.7 V near-ratiometric output swing, on-chip temperature compensation, +/-1.5% accuracy, and a media-resistant PPS thermoplastic package qualified for harsh-environment mounting. The integrated op-amp front-end eliminates the external instrumentation amplifier that discrete bridge sensors require, reducing BOM cost and PCB area.
Technically, the device uses a monolithic silicon strain-gauge bridge diffused into a diaphragm that deflects proportionally to applied pressure. The thin-film laser-trimmed resistor network compensates span, offset, and thermal drift across -40 C to +125 C, producing an output that designers can route directly to an ADC without further analog conditioning.
Typical applications include barometric altimeters and weather stations, HVAC pressure monitoring, industrial process control, sealed-cavity leak detection, avionics altitude reference, and medical respiratory instrumentation. The side-port tube geometry suits vertical-mount manifolds and wall-mounted enclosures where a horizontal port would not align with the pressure inlet.
When designing with this part, place a 100 nF decoupling capacitor close to VCC and route the analog output trace away from switching nodes to preserve the 1.5% accuracy budget. Confirm that the side-port tube dimensions (0.13 in / 3.17 mm OD) match the system manifold interface, and add a silicone-gasket seal if the media contains moisture or particulates.
This page consolidates distributor pricing, drop-in package-compatible alternatives, and application-specific design guidance that complements (but does not duplicate) the manufacturer datasheet.
Drop-in alternatives for MPXAZ6115AP — 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 MPXAZ6115AP (same form factor and footprint) — differing in Supply Voltage, Media Compatibility, Package, Signal Conditioning, Port Style.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPXAZ6115APT1
✅ Drop-In✓ In Stock
$8.95 / Unit
View Datasheet →MPXAZ6115AC6T1
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →MP3H6115A6U
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →MPXAZ6115AC6U
✅ Drop-In✓ In Stock
$8.4 / Unit
View Datasheet →MPXH6115A6U
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →MPXAZ6115AP Maximum Ratings & Electrical Characteristics
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Output Type | Analog Voltage |
| Output Voltage Range | 0.2 V to 4.7 V |
| Supply Voltage | 4.75 V to 5.25 V (5 V nominal) |
| Accuracy | +/-1.5% |
| Operating Temperature | -40 C to +125 C |
| Package | 8-SMD, Gull Wing, Side Port (SOP-8) |
| Port Style | Male 0.13 in (3.17 mm) tube, side-mounted |
| Technology | Piezoresistive silicon, monolithic with on-chip bipolar op-amp |
| Temperature Compensation | On-chip, -40 C to +125 C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Port Material | PPS thermoplastic (media resistant) |
MPXAZ6115AP Pin Configuration
| Pin 1 | VCC — 5 V supply input |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT — Analog ratiometric pressure output (0.2 V to 4.7 V) |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
Typical Applications
MPXAZ6115AP is suitable for 6 applications: Barometric Altimeter and Weather Station, HVAC and Refrigeration Pressure Monitoring, Industrial Process Control and Sealed Cavity Monitoring, Avionics Altitude Reference, Medical Respiratory and CPAP Pressure Monitoring, Automotive Altitude Compensation for Engine Management.
Barometric Altimeter and Weather Station
The MPXAZ6115AP fits barometric altimeter and consumer weather-station designs because its 15-115 kPa absolute range natively spans sea level to >9000 m altitude with +/-1.5% accuracy. The on-chip temperature compensation from -40 C to +125 C handles outdoor thermal swings without external linearization. Place the sensor with the side port venting to atmosphere through a waterproof Gore vent membrane; the 0.2 V to 4.7 V ratiometric output feeds directly into a 5 V ADC with no instrumentation amplifier required, reducing BOM cost versus a raw bridge sensor. Typical altitude resolution of 0.4 m per mV output step (calculated from 5 V / 115 kPa range) is sufficient for GPS-augmented navigation and hobbyist drones.
Recommended
HVAC and Refrigeration Pressure Monitoring
The MPXAZ6115AP suits HVAC duct and refrigeration line pressure monitoring because the 0.2 V to 4.7 V ratiometric output provides 4.5 V of usable span across the 100 kPa operating window, giving ~45 mV/kPa sensitivity directly readable by a 5 V MCU ADC. The media-resistant PPS thermoplastic package survives refrigerant exposure and condensing humidity, while the side-port tube geometry mates with standard 3.17 mm OD pneumatic fittings used in HVAC manifolds. On-chip temperature compensation from -40 C to +125 C eliminates the need for software lookup tables across rooftop and chiller operating conditions. Reference designs typically pair this sensor with a 5 V MCU sampling at 100 Hz for compressor control loops.
Recommended
Industrial Process Control and Sealed Cavity Monitoring
The MPXAZ6115AP is well-matched to industrial sealed-cavity pressure monitoring because its absolute-pressure reference (vs gauge) directly measures the sealed environment rather than delta-from-ambient, simplifying the calibration math. The +/-1.5% accuracy and on-chip amplification remove the need for external signal conditioning, allowing direct connection to PLC analog input modules. The SOP-8 surface-mount package supports conformal-coated PCBs in chemical plant and outdoor enclosures, while the 5 V single-supply operation interfaces with industrial 24 V systems via a simple LDO. Typical applications include hydraulic accumulator pressure monitoring, vacuum chamber integrity testing, and sealed battery enclosure pressure relief verification.
Recommended
Avionics Altitude Reference
The MPXAZ6115AP is used in non-certified avionics and drone altitude reference systems where its 15-115 kPa absolute range maps to -1500 m to +9000 m altitude coverage with 0.4 m/mV native resolution. The 1.5% accuracy and on-chip temperature compensation from -40 C to +125 C provide stable altitude holds in unpressurized aircraft, and the small SOP-8 footprint fits into flight controller PCBs without consuming the 8-SSOP area that some digital pressure sensors require. Pair with a barometric formula in firmware and a low-drift external temperature sensor for <1 m altitude drift per hour. The media-resistant PPS package tolerates the moisture and condensation encountered at altitude.
Recommended
Medical Respiratory and CPAP Pressure Monitoring
The MPXAZ6115AP is a strong fit for medical CPAP, ventilator, and spirometer pressure monitoring where 15-115 kPa absolute pressure covers the full respiratory and airway-pressure range. The +/-1.5% accuracy and on-chip signal conditioning eliminate analog error sources that would otherwise drift over the multi-year device lifetime. The side-port geometry allows direct integration into the patient airway tubing via a 3.17 mm OD manifold. On-chip temperature compensation from -40 C to +125 C supports autoclave sterilization cycles and wide ambient operating range. The 5 V single-supply rail simplifies the medical-grade isolation barrier design in IEC 60601-compliant systems.
Recommended
Automotive Altitude Compensation for Engine Management
The MPXAZ6115AP is suitable for automotive altitude-compensation modules where the engine management ECU requires barometric pressure to retune fuel injection and ignition maps at elevation. The 15-115 kPa absolute range covers -500 m to +5000 m with native accuracy, and the -40 C to +125 C compensated range handles under-hood and road-service temperatures. The media-resistant PPS package survives the dust, moisture, and chemical exposure of the automotive environment. Pair with a CAN-bus transceiver to deliver barometric data to the engine ECU; the 5 V supply is already present in conventional 12 V automotive architectures via an LDO. The side-port tube geometry simplifies manifold integration for OEM mounting.
Recommended
Recommended Products Summary
Engineering reference data for MPXAZ6115AP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPXAZ6115APT1 | MPXAZ6115AC6T1 | MP3H6115A6U | MPXAZ6115AC6U | MPXH6115A6U |
|---|---|---|---|---|---|---|
| Package | 8-SMD Gull Wing Side Port | 8-SMD Gull Wing Side Port - same | 8-SMD Gull Wing Top Port | 8-SSOP | 8-SMD Gull Wing | 8-SSOP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Type | Absolute | Absolute | Absolute | Absolute | Absolute | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa | 15 kPa to 115 kPa |
| Output Voltage Range | 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 |
| Accuracy | +/-1.5% | +/-1.5% | +/-1.5% | +/-1.5% | +/-1.5% | +/-1.5% |
| Port Orientation | Side | Side | Top | Side | Top | Side |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
Key Differentiators
- Same electrical die as the entire MPXAZ6115A family with multiple port orientations (vs MPXAZ6115AC6T1)
- Industry-standard SOP-8 footprint with full NXP ecosystem support (vs MP3H6115A6U)
- Wide 100 kPa operating span with 4.5 V usable output swing (vs MPXH6115A6U)
Design Notes
The MPXAZ6115AP requires a regulated 5 V supply with a tolerance of +/-5% (4.75 V to 5.25 V) for full accuracy because the output is ratiometric to VCC. Place a 100 nF ceramic decoupling capacitor within 5 mm of the VCC pin, with a 10 uF bulk capacitor on the rail for noise suppression. Switching regulator ripple should not exceed 50 mVpp on the 5 V rail or the +/-1.5% accuracy budget will be compromised.
Do not block the side-port tube inlet with solder paste, conformal coating, or PCB silkscreen during manufacturing; the 3.17 mm OD port must remain clear of obstructions for accurate pressure transmission. Adding a Gore vent membrane over the port is recommended for outdoor and weather-station applications to prevent water ingress while allowing atmospheric pressure equalization. Avoid bending or stressing the port tube during assembly; PPS thermoplastic can crack under excessive mechanical load.
Route the analog VOUT trace away from switching nodes and high-current traces to preserve the 1.5% accuracy budget; use a ground pour under and around the sensor to shield against EMI. Keep the trace length to the ADC input below 50 mm where possible, and add a small RC low-pass filter (1 kohm + 100 nF) at the ADC input if the application environment has high-frequency EMI from motors or relays. Maintain a keep-out zone of 2 mm around the side port to accommodate the pressure tubing interface.
Compliance Information
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified - the part targets industrial, consumer, and avionics (non-automotive) applications.
