MPXAZ6115A6U - 15-115kPa Absolute Pressure Sensor | NXP
MPN： MPXAZ6115A6U ✗ 停產MPXAZ6115A6U 概覽
A pressure sensor transducer is a device that generates an electronic signal as a function of applied pressure. The MPXAZ6115A6U sits within the integrated silicon pressure sensor category, a sub-family of MEMS (micro-electromechanical systems) sensors that combine a piezoresistive sensing element with on-chip signal conditioning. These devices sit in the broader hierarchy of sensors -> pressure sensors -> absolute pressure sensors -> MEMS sensors -> semiconductor devices. By integrating the bipolar op-amp circuitry and thin-film resistor networks on a single die, NXP delivers a fully calibrated, temperature-compensated analog voltage output that engineers can feed directly into an ADC, eliminating discrete amplifier stages.
The MPXAZ6115A6U integrates on-chip bipolar operational amplifier circuitry and thin-film resistor networks to deliver a high-level output signal with built-in temperature compensation and calibration. According to the NXP datasheet, the device achieves ±1.5% accuracy over the operating range, supports an absolute pressure range of 15 kPa to 115 kPa, and tolerates maximum overpressure up to 400 kPa (58.02 PSI). The 0.2 V to 4.7 V analog output is ratiometric to a 5 V supply, simplifying ADC interface design.
Key differentiating features of this part versus a bare piezoresistive die include the integrated signal conditioning, automotive-grade media resistance (the 'Z' suffix indicates media-resistant gel coating), and the calibrated, temperature-compensated output. The 'A6' package variant denotes the surface-mount 8-pin SMD module form factor with axial port orientation suited for manifold reference applications. The MPXAZ6115A6U is part of NXP's MPXxx6115A series and shares its core die technology with the related MPXA6115A6U variant.
Typical applications include automotive manifold absolute pressure (MAP) sensing, consumer barometric altitude measurement, weather station instruments, industrial pneumatic pressure monitoring, and HVAC system pressure feedback. The 15-115 kPa range covers full atmospheric pressure (101.325 kPa) plus boost pressures typical in turbocharged and naturally-aspirated engine intake manifolds.
When designing with this part, ensure the ADC reference voltage tracks the 5 V sensor supply to preserve ratiometric accuracy, and add an RC low-pass filter on the output to attenuate sensor noise. The gel-protected media-resistant coating must not be mechanically damaged during PCB assembly; conformal coating on the host board should avoid the sensor port.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 MPXAZ6115A6U — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MPXAZ6115A6U （相同外形與佔位） — 差異在於 Accuracy, Signal Conditioning, Supply Voltage, Package, Port Style.
MPXA6115A6U
✅ 直接替換聯絡詢價
查看資料表 →MPXAZ6115AC6U
✅ 直接替換聯絡詢價
查看資料表 →MPXAZ6115AC7U
✅ 直接替換📋 參考替代品（不在目錄中）
MPXAZ6115A6T1
✅ 直接替換📋 參考替代品（不在目錄中）
MPXAZ6115A6U 最大額定值與電氣特性
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Maximum Overpressure | 400 kPa (58.02 PSI) |
| 輸出類型 | Analog Voltage |
| 輸出電壓範圍 | 0.2 V to 4.7 V |
| 供應電壓 | 5 V typical (ratiometric output) |
| Accuracy | ±1.5% |
| 工作溫度範圍 | -40C to +125C |
| Port Style | No Port (axial side-mount package) |
| Media Resistance | Yes (gel-protected, Z-suffix) |
| 封裝 | 8-SMD Module, axial port |
| 安裝類型 | Surface Mount |
| Signal Conditioning | On-chip, temperature compensated, calibrated |
| Sensor Technology | Piezoresistive MEMS |
| RoHS 狀態 | Compliant |
| Reach Status | Compliant |
MPXAZ6115A6U 腳位配置
| 腳位 1 | VCC — 5 V supply input |
| 腳位 2 | GND — Ground |
| 腳位 3 | VOUT — Analog output voltage (0.2 V to 4.7 V) |
| 腳位 4 | NC — Not connected (per datasheet) |
| 腳位 5 | NC — Not connected (per datasheet) |
| 腳位 6 | NC — Not connected (per datasheet) |
| 腳位 7 | NC — Not connected (per datasheet) |
| 腳位 8 | NC — Not connected (per datasheet) |
典型應用
MPXAZ6115A6U 適用於 6 應用s: Automotive Manifold Absolute Pressure (MAP) Sensing, Barometric Altitude Measurement for GPS Augmentation, Weather Station Instrument Pressure Channel, Industrial Pneumatic Pressure Monitoring, HVAC System Pressure Feedback, Consumer Altimeter / Bike Computer.
Automotive Manifold Absolute Pressure (MAP) Sensing
The MPXAZ6115A6U's 15-115 kPa absolute range and -40C to +125C operating span align directly with intake manifold pressure under naturally-aspirated and turbocharged engine conditions, where boost pressures of 100-115 kPa absolute are common. The 0.2 V-4.7 V ratiometric analog output feeds a 5 V ADC channel on the ECU, where the engine control algorithm converts the pressure reading into air mass and ignition timing commands. The integrated gel coating withstands fuel vapor and oil mist contamination that would degrade bare MEMS dies. Tolerated overpressure of 400 kPa protects against backfire spikes without external clamping.
推薦
Barometric Altitude Measurement for GPS Augmentation
Portable GPS devices use barometric pressure to correct altitude errors caused by atmospheric variability, and the MPXAZ6115A6U's 15-115 kPa absolute range covers sea level through ~9000-meter elevations with the appropriate ADC resolution. The ±1.5% accuracy translates to roughly ±120 meters of altitude error at sea level, acceptable for consumer navigation but improvable with software calibration against reference weather stations. The 8-SMD surface-mount package fits compact handheld enclosures, and the 5 V ratiometric output is easily digitized by a 10-12 bit ADC embedded in most GPS SoCs.
推薦
Weather Station Instrument Pressure Channel
The 15-115 kPa absolute range of the MPXAZ6115A6U matches the typical meteorological barometric range, where sea-level pressure of 101.325 kPa is the reference and storm systems drive pressure down to 95 kPa and high-pressure systems up to 105 kPa. The 0.2 V-4.7 V analog output interfaces directly with the 24-bit ADC modules common in dedicated weather station data loggers, providing 0.01 kPa resolution when referenced to a precision 5 V rail. The integrated temperature compensation eliminates the need for a separate temperature sensor and firmware lookup tables.
推薦
Industrial Pneumatic Pressure Monitoring
Factory automation systems monitor compressed-air lines at 6-10 bar (600-1000 kPa), but the MPXAZ6115A6U's lower 15-115 kPa range suits vacuum-pressure and low-pressure pneumatic feedback where solenoid valves and actuator positions must be verified. The integrated signal conditioning replaces discrete op-amp stages, simplifying PLC analog input modules. The ±1.5% accuracy is sufficient for status monitoring and threshold alarms rather than precise closed-loop pressure control, where higher-grade transducers are deployed.
推薦
HVAC System Pressure Feedback
Residential and commercial HVAC systems sense duct static pressure to control blower speeds and verify filter loading, with typical operating ranges of 0-250 Pa (0-2.5 kPa) and 0-1000 Pa (0-10 kPa). The MPXAZ6115A6U's lower limit of 15 kPa exceeds these ranges, so it is better suited to higher-pressure refrigeration suction lines in split-system air conditioners, where 200-500 kPa is typical. The gel-protected media-resistant package tolerates refrigerant exposure without degradation that would corrupt uncalibrated bare-MEMS designs.
推薦
Consumer Altimeter / Bike Computer
The 8-SMD surface-mount package and integrated signal conditioning of the MPXAZ6115A6U enable compact consumer altimeters, bike computers, and handheld GPS units where PCB real estate and BOM count are critical constraints. The 0.2 V-4.7 V output directly drives microcontroller ADC inputs without external amplifiers, and the ±1.5% accuracy supports typical altitude trend tracking rather than precision surveying. The Z-suffix media-resistant coating tolerates sweat and weather exposure in wearable applications.
推薦
推薦產品摘要
工程參考資料，適用於 MPXAZ6115A6U — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MPXA6115A6U | MPXAZ6115AC6U | MPXAZ6115AC7U | MPXAZ6115A6T1 |
|---|---|---|---|---|---|
| Package | 8-SMD Module (A6, axial port) | 8-SMD Module (A6) - same | 8-SMD Module (C6 port) - same package | 8-SMD Module (C7 port) - same package | 8-SMD Module (A6) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Type | Absolute | Absolute | Absolute | Absolute | Absolute |
| Operating Pressure Range | 15-115 kPa | 15-115 kPa | 15-115 kPa | 15-115 kPa | 15-115 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 |
| Media Resistance (Gel) | Yes (Z-suffix) | No (no Z) | Yes | Yes | Yes |
| Lifecycle Status | Obsolete (EOL) | Active | Obsolete | Obsolete | Obsolete |
| Accuracy | ±1.5% | ±1.5% | ±1.5% | ±1.5% | ±1.5% |
主要差異化特點
- Media-resistant gel coating for harsh-media applications (對比MPXA6115A6U)
- Active lifecycle status for new designs (對比MPXAZ6115A6U (this part))
- Integrated signal conditioning eliminates external op-amp stages (對比Bare piezoresistive die (e.g. generic uncompensated MEMS die))
設計說明
The MPXAZ6115A6U requires a stable 5 V ±5% supply for specified accuracy. The analog output is ratiometric to the supply, so any drift in VCC appears as a corresponding error in the pressure reading - never use a switching regulator directly; use an LDO such as LM7805 or LP2985. Place a 100 nF ceramic decoupling capacitor within 5 mm of the VCC pin and a 1 uF bulk tantalum or ceramic capacitor at the supply entry point. Power-rail noise above 1 MHz couples into the output, so an LC pi-filter may be required in electrically noisy environments.
Mount the sensor over a clearance cutout in the PCB under the port to admit axial pressure without obstruction. Avoid placing tall components near the port opening; mechanical stress on the gel coating can cause drift or failure. Use conformal coating on the host board but mask the sensor port opening before coating. Keep the analog output trace short and routed away from digital switching traces; an optional 1 kohm series resistor plus 100 nF to ground forms a 1.6 kHz low-pass filter that reduces broadband sensor noise without affecting signal bandwidth for typical MAP applications.
Do not use the MPXAZ6115A6U output to drive low-impedance loads directly - the high-impedance output stage requires an ADC input impedance of at least 100 kohm or an op-amp buffer. Avoid mechanical pressure pulses exceeding 400 kPa, which will permanently damage the MEMS die. Do not subject the gel coating to sharp objects or solvents such as acetone. For new designs, target the active MPXA6115A6U part to avoid EOL supply risk; if media resistance is required, the Z-suffix gel is unique to the obsolete family and design engineers should validate any proposed alternative.
合規資訊
RoHS and REACH compliance confirmed via NXP product page; AEC-Q100 not explicitly stated in available data and marked not_applicable pending datasheet review of automotive qualification section.
