MPXM2202GST1 - 200kPa Vented Gauge Pressure Sensor | STMicroelectronics
MPN: MPXM2202GST1 ✓ Hoạt độngMPXM2202GST1 Tóm tắt
A piezoresistive pressure sensor is a MEMS device in which a thin silicon diaphragm with embedded strain gauges changes resistance when pressure is applied; an external circuit or ADC then converts the millivolt-level output into a pressure reading. Pressure sensors sit in the sensor hierarchy under transducers, and board-mount variants like the MPXM2202GST1 belong to the wired medical / industrial / HVAC equipment ecosystem where gas or fluid pressure must be measured directly on a printed circuit board.
Key features include 0 mV to 40 mV full-scale span at 10 V supply, ±0.25% linearity over the 0–200 kPa range, on-chip temperature compensation from 0 °C to +85 °C, and a vented-gauge reference that compensates for ambient barometric pressure variation. The M-PAK package includes a barbed 0.12" (2.97 mm) tube port for pneumatic connection and five surface-mount leads for PCB reflow soldering.
Internally, the device is a monolithic silicon die with a piezoresistive Wheatstone bridge, laser-trimmed span and offset for tight device-to-device matching. The vented-gauge construction means the back side of the diaphragm is exposed to atmosphere through the port, allowing absolute barometric correction in single-sided applications without a secondary reference sensor.
Typical applications include medical ventilators and respiratory monitors, HVAC air-flow meters, industrial process controls, altimeters and barometers, and portable gas-flow instrumentation. Designers choose this part when they need a proven, board-mount pressure-sensing building block with analog output for easy interface to instrumentation-grade ADCs or MCU analog front ends.
Design tip: drive the sensor from a low-noise, well-regulated 10 V excitation supply and use an instrumentation amplifier with sufficient gain (typically 100×–250×) to bring the 40 mV span to a 0–4 V or 0–5 V ADC input range. Decouple VCC close to the pins with a 0.1 µF ceramic capacitor to suppress switching-noise coupling.
This page synthesizes distributor pricing from DigiKey and Mouser, verified drop-in alternatives within the MPX2202/MPX2102 family, and practical design notes not aggregated on any single manufacturer page, enabling faster part selection for new designs.
Bộ thay thế dễ dàng lắp đặt cho MPXM2202GST1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MPXM2202GST1 (cùng hình factor và footprint) — khác nhau ở Operating Pressure Range, Temperature Compensation, Mounting Type, Pressure Type, Operating Temperature.
MPXM2202GS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPXM2202GST1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2102GS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2202AS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2202GST1 Tỷ lệ tối đa & tính chất điện
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 kPa to 200 kPa (0 psi to 29.01 psi) |
| Kiểu đầu ra | Analog Wheatstone bridge (millivolt differential) |
| Full-Scale Span | 0 mV to 40 mV at 10 V excitation |
| Linearity | ±0.25% (P2 grade) |
| Điện áp cung cấp | 10 V typical (sensor excitation) |
| Nhiệt độ hoạt động | 0 °C to +85 °C (compensated range) |
| Temperature Compensation | On-chip, 0 °C to +85 °C |
| Port Type | Male barbed tube, top-side, 0.12" (2.97 mm) |
| Hộp | 5-SMD M-PAK module, top port |
| Kiểu lắp đặt | Surface Mount (SMD Gull-Wing leads) |
| Trạng thái RoHS | Compliant |
| Technology | Piezoresistive silicon MEMS, single-element |
Cấu hình chân MPXM2202GST1
| Chân 1 | Vcc — Bridge excitation, +10 V nominal |
| Chân 2 | GND — Bridge ground / excitation return |
| Chân 3 | Vout+ — Differential output positive |
| Chân 4 | Vout- — Differential output negative |
| Chân 5 | NC — Not connected (per datasheet M-PAK 5-pin map) |
Ứng dụng tiêu biểu
MPXM2202GST1 phù hợp cho 6 Áp dụngs: Medical Respiratory Equipment, HVAC Airflow and Duct Pressure Monitoring, Industrial Process Control, Altimeters and Barometric Instruments, Portable Gas-Flow Instrumentation, Appliance Water-Level Sensing.
Medical Respiratory Equipment
The MPXM2202GST1's 0–200 kPa range, ±0.25% linearity, and vented-gauge reference make it a candidate for pressure-sensing channels in CPAP machines, ventilators, and oxygen concentrators. The 40 mV full-scale span interfaces cleanly with instrumentation amplifiers; the top-side tube port simplifies pneumatic connection to flow paths, and on-chip 0–85 °C compensation removes the need for an external thermistor in commercial/clinical instruments. Final IEC 60601 medical certification is the responsibility of the OEM at the system level. Compared to a discrete pressure-transducer module, the M-PAK form factor saves PCB area.
Được đề xuất
HVAC Airflow and Duct Pressure Monitoring
In HVAC duct-pressure and VAV box monitoring, the MPXM2202GST1 measures air-pressure drops across fans, filters, and dampers. The vented-gauge port automatically tracks barometric changes, so altitude or weather-related pressure shifts do not bias the reading, and the 0.12" barbed port accepts standard pneumatic tubing. With a 10 V excitation and a single-stage instrumentation amp at 100× gain, the 40 mV span resolves to ~4 V full scale for an MCU ADC - sufficient for 10-bit duct-pressure resolution. The M-PAK surface-mount package supports automated assembly on filter-monitoring PCBs.
Được đề xuất
Industrial Process Control
Process-control applications such as gas-flow metering, liquid-level sensing via hydrostatic head, and cleanroom pressure-differential alarms benefit from the MPXM2202GST1's calibrated millivolt output. Designers can pair the sensor with a 4–20 mA current-loop transmitter to retrofit industrial equipment without disturbing existing wiring. The on-chip compensation handles factory-floor thermal variation, and the 200 kPa range covers most gas-line pressures downstream of regulators. Compared to bare-die pressure elements, the M-PAK housing protects the diaphragm from incidental contact during field installation.
Được đề xuất
Altimeters and Barometric Instruments
Outdoor altimeters, weather stations, and portable barometric instruments benefit from the MPXM2202GST1's vented-gauge design - the back-side vent cancels ambient pressure changes so the sensor reads only the differential signal applied to the top port. With proper signal conditioning and temperature compensation, the device supports ±1.5 m altitude resolution based on the standard atmospheric model. The M-PAK package and surface-mount leads suit compact handheld enclosures where space and weight are constrained.
Được đề xuất
Portable Gas-Flow Instrumentation
Handheld gas-leak detectors, combustion analyzers, and pneumatic tool controllers use the MPXM2202GST1 to measure inlet and outlet pressures in compact packages. The M-PAK surface-mount design supports reflow soldering on small PCBs, and the 0.12" port accepts standard silicone tubing used in respiratory and gas-analyzer test setups. Battery-powered designs should use a switched excitation scheme to reduce quiescent draw, since the MPXM2202GST1 dissipates power continuously while the bridge is energized.
Được đề xuất
Appliance Water-Level Sensing
Dishwasher, washing-machine, and refrigerator water-level sensors can use the MPXM2202GST1 in vented-gauge mode to read hydrostatic head from a pressure tap at the bottom of a sump. The 200 kPa range covers typical appliance water-column heights up to ~20 m, and the compensated 0–85 °C window matches appliance operating environments. Designers must isolate the diaphragm from humid air with a sealed pneumatic line to prevent condensation damage over the appliance lifetime.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MPXM2202GST1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MPXM2202GS | MPXM2202GST1 (NXP) | MPXM2102GS | MPXM2202AS |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 5-SMD M-PAK module, top tube port | 5-SMD M-PAK - same package | 5-SMD M-PAK - same package | 5-SMD M-PAK - same package | 5-SMD M-PAK - same package |
| Pressure Type | Vented Gauge | Vented Gauge | Vented Gauge | Vented Gauge | Absolute |
| Operating Pressure Range | 0 to 200 kPa (0 to 29.01 psi) | 0 to 200 kPa - same | 0 to 200 kPa - same | 0 to 100 kPa - half range | 0 to 200 kPa - same (absolute) |
| Full-Scale Span at 10 V | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV |
| Linearity | ±0.25% (P2 grade) | ±0.25% - same | ±0.25% - same | ±0.25% - same | ±0.25% - same |
| Temperature Compensation Range | 0 °C to +85 °C | 0 °C to +85 °C | 0 °C to +85 °C | 0 °C to +85 °C | 0 °C to +85 °C |
Bảo phân biệt quan trọng
- On-chip thin-film temperature compensation (vsMPXM2102GS)
- Vented-gauge reference built into the top port (vsMPXM2202AS)
- Established 5-SMD M-PAK module footprint (vsMPXM2202GST1 (NXP original))
Ghi chú thiết kế
Drive the MPXM2202GST1 from a low-noise 10 V excitation rail - any ripple or noise on the supply multiplies directly through the 40 mV span and corrupts the pressure reading. Add a 0.1 µF ceramic decoupling capacitor close to the bridge input pins, and consider a pi-filter (10 Ω + 10 µF) for noisy supply environments. For battery-powered designs, use a switched-capacitor inverter with a low-pass output filter to enable excitation only during measurement windows.
Route the sensor output traces as a tightly coupled differential pair on an inner PCB layer, with ground guarding around the traces. Keep the path short to prevent the 40 mV signal from picking up 50/60 Hz mains hum or RF interference. Use an instrumentation amplifier with at least 60 dB CMRR (e.g., INA128) located within 50 mm of the sensor to maximize common-mode rejection before any single-ended amplification stage.
Estimated: at full pressure the bridge draws a few mA from the 10 V supply, so continuous excitation dissipates ~30 mW in the sensor - more than the package thermal rating if sealed insulation traps heat. Plan ventilation or switched excitation. Also avoid dropping the device into liquids: the M-PAK tube port does not seal against submersion, and ingress can damage the silicon diaphragm. Use a sealed pneumatic interface and hydrophobic filter for wet-environment applications.
On-chip temperature compensation covers 0 °C to +85 °C. Outside this range, span and offset drift become significant - plan for a user-side correction lookup table or an external NTC thermistor if your application operates at industrial extremes (-40 °C to +125 °C). Mount the device away from heat sources (linear regulators, power resistors) on the PCB; even an additional 10 °C self-heating from neighboring components can shift the offset by tens of pascals in high-accuracy use cases.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page; not AEC-Q100 qualified (consumer/industrial part); original Freescale/NXP part is now manufactured and supported by STMicroelectronics.
