MPXH6115A6U - 15-115 kPa Absolute Pressure Sensor, SOIC-8 | NXP
Артикул: MPXH6115A6U ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $19.73 | $19,73 |
| 10 | $17.5 | $175,00 |
| 100 | $14.2 | $1.420,00 |
| 500 | $11.85 | $5.925,00 |
| 1.000 | $9.95 | $9.950,00 |
MPXH6115A6U Обзор
An absolute pressure sensor is a transducer that produces an output proportional to pressure referenced to a sealed vacuum cavity rather than ambient air. The MPXH6115A6U sits inside the broader sensor taxonomy as a piezoresistive silicon sensor -> MEMS pressure sensor -> absolute pressure transducer. Because the vacuum reference is built in, the device outputs a pressure reading that includes the local atmospheric component, which is ideal for sealed-cavity applications where atmospheric drift must be inherently rejected.
Key features include a maximum pressure rating of 400 kPa (over-pressure survival to roughly 3.5x the full-scale operating range), ratiometric analog output that tracks VCC for ADC-friendly interfaces, and a typical current consumption of 6 mA. The SOIC-8 package with a top-side pressure port enables standard surface-mount reflow while preserving access for hose attachment, and NXP/Freescale screening to AEC-Q100-style flow supports automotive under-hood deployments.
From a silicon-design standpoint, the MPXH6115A6U combines a single-chip piezoresistive Wheatstone bridge, an on-die bipolar op-amp gain stage, and laser-trimmed compensation networks. The result is a calibrated, amplified, temperature-corrected analog rail that requires no external signal conditioning beyond bypass capacitance and a simple RC anti-aliasing filter ahead of the host ADC.
Typical uses include automotive manifold absolute pressure (MAP) sensing, HVAC altitude compensation, weather-station barometric instruments, and medical respiratory equipment. Industrial applications include sealed-system leak detection, altitude reporting for drones, and process-control back-pressure monitoring where the 15-115 kPa window closely matches sea-level ambient.
When designing with this part, place the 0.2-4.7 V output through an RC low-pass filter (typically 1 kohm/100 nF, fc ~ 1.6 kHz) before the ADC to suppress high-frequency noise from the supply pump. Use an ADC reference tied to VCC if ratiometric cancellation of supply variation is desired, since the output nominally scales with VCC.
Аналоги без доработки для MPXH6115A6U — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MPXH6115A6U (тот же форм-фактор и посадочное место) — отличается по Package, Accuracy, Port Style, Output Type, Supply Voltage.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MPXH6115AC6U
✅ Прямая замена✓ В наличии
$5.75 / шт.
Открыть даташит →MPXH6115A6T1
✅ Прямая замена✓ В наличии
$6.45 / шт.
Открыть даташит →MPXA6115A
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MPXHZ6115AC6U
✅ Прямая замена✓ В наличии
$7.25 / шт.
Открыть даташит →MPXHZ6115A6T1
✅ Прямая замена✓ В наличии
$10.85 / шт.
Открыть даташит →MPXH6115A6U Максимальные параметры и электрические характеристики
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Maximum Over-Pressure | 400 kPa |
| Sensitivity | 45.9 mV/kPa (typical) |
| Accuracy (0C to 85C) | 1.5 % (max) |
| Диапазон выходного напряжения | 0.2 V to 4.7 V |
| Напряжение питания | 4.75 V to 5.25 V |
| Ток потребления | 6 mA (typical) |
| Рабочая температура | -40C to +125C |
| Compensated Temperature | 0C to +85C |
| Тип выхода | Analog, ratiometric to VCC |
| Корпус | 8-SOIC (0.295", 7.50 mm width) with top-side pressure port |
| Тип монтажа | Surface Mount |
| Pressure Port | Vertical/Horizontal axial port (case variant 6) |
| Media Compatibility | Dry air, non-corrosive gases only |
Конфигурация выводов MPXH6115A6U
| Контакт 1 | VCC — Supply voltage (4.75 V to 5.25 V) |
| Контакт 2 | GND — Ground |
| Контакт 3 | VOUT — Analog output (0.2 V to 4.7 V) |
| Контакт 4 | NC — Not connected (per datasheet) |
| Контакт 5 | NC — Not connected (per datasheet) |
| Контакт 6 | NC — Not connected (per datasheet) |
| Контакт 7 | NC — Not connected (per datasheet) |
| Контакт 8 | NC — Not connected (per datasheet) |
Типичное применение
MPXH6115A6U подходит для 6 применениеs: Automotive MAP Sensing, HVAC Barometric Altitude Compensation, Weather Station / Barometer Module, Medical Respiratory Equipment, Industrial Process Back-Pressure Monitoring, Drone Altitude Reporting.
Automotive MAP Sensing
The MPXH6115A6U's 15-115 kPa absolute-pressure window covers the full intake-manifold range from deep vacuum to atmospheric and slightly above, while the ratiometric 0.2-4.7 V output ties directly to engine ECU ADCs via a single wire. Plumbed into the manifold vacuum port, it replaces legacy MAP sensors with no host-side ratiometric calibration required; AEC-style screening supports under-hood thermal operation to +125C. The 1.5 % accuracy across 0-85C provides sufficient precision for closed-loop fuel control around stoichiometric mixtures.
Рекомендуется
HVAC Barometric Altitude Compensation
Building HVAC systems use the MPXH6115A6U to measure outdoor air pressure before mass-flow CFM conversion, where absolute pressure drives the air-density correction factor in the controller algorithm. The 0.2-4.7 V output spans the 75-110 kPa barometric range encountered from sea level to 2500 m altitude, and the on-chip temperature compensation removes the seasonal drift that would otherwise corrupt the comfort setpoint. An RC anti-alias filter ahead of the controller ADC suppresses pump and fan noise.
Рекомендуется
Weather Station / Barometer Module
Hobbyist and prosumer weather stations use the MPXH6115A6U as the primary barometric element because the 0.2-4.7 V output maps cleanly to a 10-bit ADC channel and the 15-115 kPa window encompasses all surface-pressure variations including hurricanes and high-pressure ridges. The on-chip temperature compensation removes the dominant error term in unheated outdoor enclosures, and the SOIC-8 package is small enough for handheld field instruments. Power consumption is dominated by the host MCU rather than the 6 mA sensor bias.
Рекомендуется
Medical Respiratory Equipment
In CPAP, BiPAP, and ventilator circuits, the MPXH6115A6U monitors proximal airway pressure, where the 15-115 kPa window covers normal breathing pressure through slightly elevated therapeutic pressure. The 0.2-4.7 V output drives a differential amplifier with a patient-safety isolation barrier before the host MCU; the 1.5 % accuracy across 0-85C supports clinical pressure-target tracking. The dry-gas media requirement is satisfied by the sealed, filtered air path typical of respiratory tubing.
Рекомендуется
Industrial Process Back-Pressure Monitoring
Process-control panels use the MPXH6115A6U to measure vacuum or low-pressure back-pressure on sealed tanks and vacuum lines where the 15-115 kPa window aligns with the standard industrial vacuum range. The ratiometric output tracks the host PLC's 5 V rail directly, eliminating ground-loop-induced measurement drift across long cable runs. The 400 kPa over-pressure rating protects the sensor from hydraulic-shock events during maintenance and pump start-up.
Рекомендуется
Drone Altitude Reporting
Multirotor flight controllers use the MPXH6115A6U as the primary barometric altitude source; the 15-115 kPa window resolves altitude changes of 0.1 m with appropriate filtering, and the 0.2-4.7 V output drives the analog input of common flight-controller ADCs directly. The on-chip temperature compensation removes the dominant error term when the drone transitions between cold ground and warm flight, and the 6 mA quiescent current fits in even a sub-100 mAh 1S power budget.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MPXH6115A6U — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MPXH6115AC6U | MPXH6115A6T1 | MPXA6115A | MPXHZ6115AC6U |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | SOIC-8 (7.50 mm width) | SOIC-8 (7.50 mm width) - same | SOIC-8 (7.50 mm width) - same | SOIC-8 (7.50 mm width) - same | SOIC-8 (7.50 mm width) - same |
| Pressure Type | Absolute (15-115 kPa) | Absolute (15-115 kPa) | Absolute (15-115 kPa) | Absolute (15-115 kPa) | Absolute (15-115 kPa) |
| 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 |
| 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 |
| Sensitivity | 45.9 mV/kPa | 45.9 mV/kPa | 45.9 mV/kPa | 45.9 mV/kPa | 45.9 mV/kPa |
| Accuracy (0-85C) | 1.5 %VFSS (max) | 1.5 %VFSS (max) | 1.5 %VFSS (max) | 1.5 %VFSS (max) | 1.5 %VFSS (max) |
| Pressure Port Orientation | Horizontal axial (case 6 / H) | Vertical axial (case C) | Horizontal axial (case T1) | Case A (port style differs) | Case C with Z-grade marking |
Ключевые отличия
- Drop-in identical spec table across multiple case/port variants (против MPXH6115AC6U)
- Same silicon die available in tape-and-reel for SMT pick-and-place (против MPXH6115A6T1)
- A-grade (absolute) versus Z-grade (commercial) screening within the family (против MPXHZ6115AC6U)
Заметки по проектированию
Place a 100 nF ceramic bypass capacitor as close as possible to the VCC pin (pin 1) and a separate 100 nF-1 uF ceramic on the VOUT pin (pin 3) to shunt high-frequency supply and reference noise. Route the analog output trace away from switching converter inductors and digital clock lines; a 4-6 mil trace on a quiet inner layer with guard ground reduces coupled noise. The pressure port on top of the SOIC-8 case requires no PCB cut-out for through-hole air access if the case variant 6H port is used.
Add a single-pole RC low-pass filter (R = 1 kohm, C = 100 nF, fc approximately 1.6 kHz) between the VOUT pin and the host ADC input to suppress wideband op-amp noise without compromising the under-1 kHz signal content. If higher bandwidth is needed (e.g., for transient pressure events), reduce R to 100 ohm and adjust C accordingly. Tie the ADC reference rail to VCC so the ratiometric cancellation absorbs supply drift end-to-end.
Do not expose the pressure port to liquids or corrosive gases - the on-chip bond wires and piezoresistive bridge tolerate only dry air per the datasheet. The media compatibility restriction means a hydrophobic membrane or particulate filter is mandatory in humid or dirty environments. Power-on transients should be limited to within the 4.75-5.25 V supply window; reverse-polarity protection via a Schottky diode on VCC is recommended for hot-plugged field-service scenarios.
Estimated: at 5 V supply and 6 mA quiescent current, the SOIC-8 package dissipates approximately 30 mW internally, which is well below the package's thermal resistance budget and produces a junction-temperature rise of less than 1C. However, sustained operation at +125C derates the silicon long-term reliability per typical automotive-grade screening; verify the actual AEC-Q100 conformance of the specific MPXH6115A6U order code before deployment in safety-critical underhood locations.
Информация о соответствии
RoHS, REACH, AEC-Q100, lead-free and halogen-free status not provided in verified web data; downstream users should consult the manufacturer product page or NXP environmental compliance documentation before design-in.
