MPXV5004GC7U - 0-3.92 kPa Vented Gauge Pressure Sensor | NXP
MPN： MPXV5004GC7U ✓ 啟用中MPXV5004GC7U 概覽
A pressure sensor is a transducer that converts an applied pressure into an electrical signal; a vented gauge sensor references its zero against an integrated vent port so it automatically compensates for atmospheric variation. The MPXV5004GC7U belongs to the MPxx5004 family of monolithic silicon sensors and sits within the broader hierarchy: pressure sensor -> pressure transducer -> sensor IC -> semiconductor. Piezoresistive strain gauges are implanted in a micromachined silicon diaphragm using thin-film metallization and bipolar processing, yielding an accurate analog output proportional to differential pressure.
Key features of the MPXV5004GC7U include 0 to 3.92 kPa range with 1 V/kPa typical sensitivity, a ratiometric 5 V supply (4.75 V to 5.25 V), a top-port 3.17 mm tube inlet suited to small dead-volume plumbing, accuracy of approximately +/- 1.5 percent VFSS, on-chip temperature compensation from 0 C to 85 C, and a through-hole DIP footprint compatible with hand-soldered prototypes and leaded assembly lines. The vented gauge design means one side of the diaphragm is exposed to the application and the other side to ambient via the rear vent hole, simplifying system plumbing.
From an architecture standpoint, the on-chip ASIC includes a Wheatstone-bridge piezoresistive network, a precision bandgap reference, a calibration trim network, and a buffered analog output stage. The device is intended for 5 V single-supply operation and produces a near-rail-to-rail output that interfaces directly to an external ADC, microcontroller ADC input, or comparator. The DIP-8 package isolates the front-side media port from the rear vent, which is required for proper gauge operation.
Typical applications include CPAP / ventilator airflow monitoring, HVAC variable-air-volume box sensing, weather station barometric trending, respiratory spirometry, and portable medical / fitness airflow meters. In each case the small top port minimizes dead volume and the calibrated analog output eliminates the need for software scaling.
When designing with this part, place the sensor close to the host ADC to minimize noise pickup, add a 100 nF decoupling capacitor near the supply pin, and avoid blocking the rear vent hole during PCB layout. The 8-pin DIP footprint is hand-solderable but the device is now primarily serviced through NXP legacy channels, so lead time and authorized stocking distributor verification should be checked at design-in.
直接替換替代品，適用於 MPXV5004GC7U — 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： MPXV5004GC7U （相同外形與佔位） — 差異在於 Package, Output Type, Accuracy, Output Voltage Range, Operating Pressure Range.
MPXV4G
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MPXV5004DP
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MPXV5004GVP
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MPXV5004G7U
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MP3V5004GC6U
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MPVZ5004GW7U
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MPXV5004GC7U 最大額定值與電氣特性
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 kPa to 3.92 kPa (0 to 0.57 PSI) |
| Maximum Overpressure | 16 kPa |
| 供應電壓 | 4.75 V to 5.25 V (5 V typical) |
| 輸出電壓範圍 | 1 V to 4.9 V |
| Sensitivity | 1 V/kPa (typical) |
| Accuracy | +/- 1.5 percent VFSS |
| 工作溫度 | 0 C to +85 C |
| Storage Temperature | -30 C to +100 C |
| Port Type | Top port tube, 0.13 inch (3.17 mm) diameter |
| 輸出類型 | Analog, ratiometric voltage |
| 封裝 | 8-pin DIP, 0.550 inch (13.97 mm), through-hole |
| Media Compatibility | Dry non-corrosive gases |
| 安裝類型 | Through-hole |
MPXV5004GC7U 腳位配置
| 腳位 1 | VOUT — Analog pressure output voltage |
| 腳位 2 | GND — Ground reference |
| 腳位 3 | VCC — 5 V supply input |
| 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
MPXV5004GC7U 適用於 6 應用s: CPAP and Ventilator Airflow Monitoring, HVAC Variable Air Volume (VAV) Box Sensing, Weather Station Barometric Trend Sensing, Respiratory Spirometry, Portable Fitness Airflow Meters, Industrial Cleanroom Differential Pressure.
CPAP and Ventilator Airflow Monitoring
The MPXV5004GC7U is well matched to CPAP and ventilator airflow monitoring because its 0 to 3.92 kPa range covers typical patient-circuit pressure differentials and its calibrated 1 V to 4.9 V analog output at 5 V supply interfaces directly to a host microcontroller ADC. The vented gauge configuration references ambient pressure automatically, eliminating manual barometric compensation. With +/- 1.5 percent VFSS accuracy and a small 3.17 mm top port, the sensor minimizes dead volume in the breathing circuit, which is critical for accurate tidal-volume sensing. Placed inline between the blower and the patient mask, the MPXV5004GC7U provides a ratiometric voltage signal proportional to instantaneous flow; compared to a differential bridge sensor, it requires no external signal conditioning.
推薦
HVAC Variable Air Volume (VAV) Box Sensing
In HVAC variable-air-volume boxes, the MPXV5004GC7U measures the differential pressure across the orifice plate that the controller uses to compute airflow. Its 0 to 3.92 kPa range covers typical duct static pressures in commercial VAV terminals and the ratiometric 1 V/kPa sensitivity simplifies ADC scaling. The through-hole DIP package is rugged enough for field installation, and the on-chip temperature compensation from 0 C to 85 C handles plenum-temperature swings. Mounted in the actuator housing with tubing to the pickup probes, the sensor converts pressure drop into a clean analog signal; unlike a MEMS flow element with I2C output, this part needs only an ADC channel and the 5 V supply.
推薦
Weather Station Barometric Trend Sensing
For weather station barometric trend applications the MPXV5004GC7U provides a calibrated analog output over a 0 to 3.92 kPa range that captures meaningful barometric variation above ambient when used with a sealed reference chamber, or alternatively directly reads barometric delta when vented gauge mode is required. The on-chip calibration eliminates per-unit trimming and the 5 V single-supply operation matches solar-powered weather-station rails. With +/- 1.5 percent VFSS accuracy and 1 V/kPa sensitivity, the sensor delivers trend data suitable for predicting frontal passages. Connected to a low-power MCU ADC with the 5 V rail as ADC reference, the MPXV5004GC7U replaces discrete bridge-and-amp designs in hobbyist and prosumer weather stations.
推薦
Respiratory Spirometry
In respiratory spirometry, the MPXV5004GC7U measures the small differential pressures generated by patient flow through a Fleisch-type pneumotachograph. The 0 to 3.92 kPa range matches typical spirometer flow elements and the 1 V to 4.9 V analog output integrates directly with a portable spirometer ADC. The vented gauge design allows the patient to breathe ambient air through the rear vent while the front port senses flow. With +/- 1.5 percent VFSS accuracy the part delivers clinically useful flow-loop data when calibrated against a syringe. Unlike disposable flow tubes, the MPXV5004GC7U is a reusable transducer that can be incorporated into desktop or handheld spirometer designs.
推薦
Portable Fitness Airflow Meters
Portable fitness airflow meters and breathing trainers use the MPXV5004GC7U to measure the small pressure changes that correspond to breath strength and rhythm. The compact 8-pin DIP through-hole package fits inside a handheld enclosure, and the 3.17 mm top port accepts flexible tubing that connects to a mouthpiece. With 1 V/kPa sensitivity and a ratiometric 5 V output the sensor interfaces directly to a battery-powered MCU ADC. The vented gauge configuration automatically compensates for altitude, which matters for users who train at elevation. Compared to a turbine-based flow meter, the MPXV5004GC7U has no moving parts and therefore no mechanical wear.
推薦
Industrial Cleanroom Differential Pressure
Cleanroom differential pressure monitoring between an ISO-classified space and its corridor is a classic application for the MPXV5004GC7U because the 0 to 3.92 kPa range covers the typical 12.5 Pa (0.0125 kPa) to 30 Pa (0.030 kPa) positive-pressure spec, with the on-chip amplifier delivering a clean 1 V to 4.9 V signal that drives a wall-mounted indicator or BMS input. The 0 C to +85 C operating range handles indoor industrial environments and the 8-pin DIP package simplifies field wiring to a remote indicator. With +/- 1.5 percent VFSS accuracy, the sensor easily resolves the 0.0125 kPa minimum threshold when read by a 12-bit ADC. Unlike an analog manometer, the MPXV5004GC7U provides an electronic signal that integrates with building-management and alarm systems.
推薦
推薦產品摘要
工程參考資料，適用於 MPXV5004GC7U — 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 | MP5004G | MPXV5004DP | MPXV5004GVP | MPXV5004G7U | MP3V5004GC6U | MPVZ5004GW7U |
|---|---|---|---|---|---|---|---|
| Package | 8-DIP (0.550 inch, top port tube) | 8-DIP | 8-DIP | 8-DIP | 8-DIP | 8-DIP | 8-DIP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Range | 0 to 3.92 kPa | 0 to 3.92 kPa | 0 to 3.92 kPa | 0 to 3.92 kPa | 0 to 3.92 kPa | 0 to 3.92 kPa | 0 to 3.92 kPa |
| Output Type | Analog ratiometric, 1 V to 4.9 V | Analog ratiometric | Analog ratiometric | Analog ratiometric | Analog ratiometric | Analog ratiometric | Analog ratiometric |
| 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 | 4.75 V to 5.25 V |
| Port Configuration | Top port tube, 3.17 mm | Top port tube | Dual port | Axial port | Top port tube | Top port tube | Inverted gauge port |
| Sensitivity | 1 V/kPa typical | 1 V/kPa | 1 V/kPa | 1 V/kPa | 1 V/kPa | 1 V/kPa | 1 V/kPa |
主要差異化特點
- Single top port 3.17 mm tube inlet for minimal dead volume (對比MPXV5004DP)
- Original Motorola / Freescale / NXP MPxx5004 family with calibrated analog output (對比MPXV5004GVP)
- Ratiometric 5 V output scales with supply, simplifying ADC reference design (對比MPVZ5004GW7U)
設計說明
Estimated: at 5 V supply the MPXV5004GC7U draws approximately 10 mA quiescent current. Place a 100 nF ceramic decoupling capacitor within 5 mm of the VCC pin and a 10 uF bulk capacitor at the supply rail entry to suppress noise pickup from upstream regulators. The analog output is ratiometric to VCC, so power-supply ripple directly scales the output - use a low-noise LDO rather than a switching regulator when ADC accuracy matters.
Keep the rear vent hole unobstructed on the PCB layout. Blocking the vent alters the gauge zero and introduces measurement error. Maintain a 2 mm keep-out around the rear vent and avoid conformal coating that could seal the vent. Route VOUT as a short, guarded trace away from switching-node traces and digital clock lines; the high-impedance analog output is sensitive to capacitive coupling.
Do not apply vacuum or pressure beyond the 16 kPa maximum overpressure rating; permanent diaphragm damage will result. Avoid exposing liquids or condensing that can condense in the port - the sensor is specified for dry non-corrosive gases only. Apply thermal management by avoiding heat sources directly above the sensor, since on-chip temperature compensation is calibrated assuming a stable ambient temperature profile.
合規資訊
RoHS, REACH, lead-free, halogen-free and conflict-mineral status for MPXV5004GC7U were not provided in the verified web data. AEC-Q100 is not applicable because this is a through-hole pressure sensor for medical / industrial / consumer use, not an automotive-qualified part. Confirm compliance with the manufacturer or authorized distributor before use in regulated applications.
