MPXM2202AS - 200 kPa Absolute Pressure Sensor, M-PAC | NXP
MPN: MPXM2202AS ⚠ Lần mua cuốiMPXM2202AS Tóm tắt
A piezoresistive pressure sensor is a micro-electro-mechanical (MEMS) device in which a silicon diaphragm with diffused strain gauges converts applied pressure into a proportional change in resistance. The MPXM2202AS integrates the sensing die, on-chip temperature compensation network, and signal-conditioning resistors in a single surface-mount module, allowing direct interface to an external ADC or instrumentation amplifier. Within the broader sensor taxonomy, it sits as: pressure sensor -> MEMS sensor -> transducer -> sensor IC -> semiconductor. The MPX2202/MPXM2202 family is the legacy industrial/medical successor to the original Motorola MPX2000 series piezoresistive cells.
Key features include 0 mV to 40 mV full-scale output (typ. 0.2 mV/kPa sensitivity), 10 V typical excitation, on-chip temperature compensation across 0C to 85C, and an absolute pressure reference sealed inside the package. The 5-pin M-PAC package simplifies PCB layout compared to the larger unibody MPX2202GP variant, while preserving the same Wheatstone-bridge pinout. The sensor is intended for clean, dry, non-corrosive gases.
The MPXM2202AS relies on a single-axial piezoresistive bridge: four ion-implanted resistors on a silicon diaphragm form a Wheatstone configuration, balancing at 0 kPa and unbalancing linearly with applied pressure. The on-chip compensation network cancels the first-order temperature coefficient of the bridge, allowing raw mV output to be read directly with reasonable accuracy over the 0-85C range.
Typical applications include medical inhalers and patient monitors, HVAC pressure transmitters, altimeters and barometric instruments, industrial process control, and pneumatic system monitoring. For battery-powered designs, consider newer I2C/SPI digital sensors such as the NXP MPL3115A2 or the Bosch BMP280; the MPXM2202AS is best suited to systems that already have a stable 10 V analog supply and an ADC front end.
When designing with this part, route the high-impedance bridge outputs on a guard trace or shield and place the ADC sample-and-hold within 50 mm of the output pins. Apply the 10 V excitation through a low-noise LDO such as the TPS7A4701 to avoid bridge self-heating drift.
This page synthesizes distributor pricing, drop-in alternatives from the same NXP MPX2202 family, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MPXM2202AS — 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 MPXM2202AS (cùng hình factor và footprint) — khác nhau ở Operating Pressure Range, Output Type, Temperature Compensation, Package, Supply Voltage.
MPXM2202A
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2202GS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPXM2202GST1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2202D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPXM2102A
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2102AS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2102GS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXM2202AS Tỷ lệ tối đa & tính chất điện
| Pressure Type | Absolute |
| Operating Pressure Range | 0 kPa to 200 kPa (0 to 29.01 PSI) |
| Kiểu đầu ra | Analog Wheatstone bridge (differential mV) |
| Full-Scale Output | 0 mV to 40 mV at 10 V excitation |
| Sensitivity | 0.2 mV/kPa (typical) |
| Supply Voltage (Excitation) | 10 V typical (max per datasheet) |
| Khoảng nhiệt độ hoạt động | 0C to +85C (compensated) |
| Temperature Compensation | On-chip (0C to +85C) |
| Hộp | M-PAC-5 (5-SMD module with top port) |
| Pressure Port | Top port, 0.12 in (2.97 mm) tube |
| Kiểu lắp đặt | Surface Mount |
| Media Compatibility | Dry, non-corrosive gases only |
Cấu hình chân MPXM2202AS
| Chân 1 | Vs+ — Bridge excitation positive (10 V typical) |
| Chân 2 | Vout+ — Differential output positive (mV level) |
| Chân 3 | Vs- — Bridge excitation negative (ground) |
| Chân 4 | Vout- — Differential output negative (mV level) |
| Chân 5 | GND — Package ground reference |
Ứng dụng tiêu biểu
MPXM2202AS phù hợp cho 7 Áp dụngs: Medical Inhaler Pressure Monitoring, HVAC Duct Pressure Transmitter, Barometric Altimeter / Weather Station, Industrial Process Pressure Monitor, Pneumatic System Leak Testing, Patient Monitoring / Ventilator Side Stream, Gas Chromatograph Carrier Pressure Sense.
Medical Inhaler Pressure Monitoring
The MPXM2202AS suits medical inhaler and respiratory equipment where 0-200 kPa absolute pressure reflects delivered lung pressure. Its 0.2 mV/kPa sensitivity and 10 V excitation produce a 40 mV full-scale signal that feeds directly into an instrumentation amplifier such as the INA128, preserving the dynamic range needed for breath-pattern analysis. The on-chip 0C-85C compensation eliminates external thermistor linearization, simplifying the analog front end.
Được đề xuất
HVAC Duct Pressure Transmitter
Building-automation HVAC duct-pressure monitoring benefits from the MPXM2202AS because 0-200 kPa covers typical duct static-pressure ranges while the absolute reference anchors against barometric drift. Its dry-gas compatibility suits clean supply-air ducts, and the M-PAC-5 top-port allows direct tube mounting into the duct wall. Pairing with a 4-20 mA loop transmitter such as the XTR105 completes the field-sensor chain for legacy BAS controllers.
Được đề xuất
Barometric Altimeter / Weather Station
Portable altimeters and weather stations use the MPXM2202AS because its 0-200 kPa absolute range covers sea-level (101.325 kPa) up to roughly 9 km altitude (below 30 kPa). The 0.2 mV/kPa sensitivity provides 0.5 m altitude resolution after 12-bit ADC conversion, sufficient for hiking and amateur weather-logging applications. Battery-powered systems should duty-cycle the 10 V excitation via a boost regulator to extend runtime.
Được đề xuất
Industrial Process Pressure Monitor
Industrial process-control loops in the 0-200 kPa range - including filter status monitoring, vacuum-line sensing, and cleanroom pressure verification - leverage the MPXM2202AS for its long-term silicon-diaphragm stability and on-chip temperature compensation. The 0-40 mV analog output interfaces directly to legacy 0-10 V PLC analog input modules via a single op-amp gain stage. The M-PAC-5 top-port accepts standard 2.97 mm tubing for pneumatic panel integration.
Được đề xuất
Pneumatic System Leak Testing
Pneumatic-system leak-test fixtures use the MPXM2202AS to monitor pressure decay in a sealed manifold between 0-200 kPa. Its absolute reference gives a stable baseline for comparison, and the 10 V excitation is supplied from the test fixture's existing high-voltage rail. The 5-pin M-PAC package handles manual insertion on the test fixture PCB, and the top port accepts the pneumatic coupling directly without additional fittings.
Được đề xuất
Patient Monitoring / Ventilator Side Stream
Patient monitoring and ventilator side-stream pressure measurement at low flows uses the MPXM2202AS for its calibrated mV/kPa response and clean-gas compatibility. The 0-40 mV output is amplified by an instrumentation amp before being sampled by a 1 kSPS ADC, capturing breath waveform details down to 0.1 kPa resolution. The on-chip compensation reduces the calibration burden during ventilator QA cycles.
Được đề xuất
Gas Chromatograph Carrier Pressure Sense
Benchtop gas chromatographs use the MPXM2202AS to monitor carrier-gas line pressure up to 200 kPa during sample injection. Its analog mV output feeds a 24-bit sigma-delta ADC that captures both static pressure and short transients during valve actuation. The dry-gas-only media specification aligns with helium, hydrogen, and nitrogen carriers used in GC workflows.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MPXM2202AS — 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 | MPXM2202A | MPXM2202GS | MPXM2202GST1 | MPXM2202D | MPXM2102A |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | M-PAC-5 (5-SMD module) | M-PAC-5 - same | M-PAC-5 - same | M-PAC-5 - same | M-PAC-5 - same | M-PAC-5 - same |
| Pressure Type | Absolute | Absolute | Gauge | Gauge | Differential | Absolute |
| Operating Pressure Range | 0 to 200 kPa | 0 to 200 kPa | 0 to 200 kPa | 0 to 200 kPa | 0 to 200 kPa | 0 to 100 kPa |
| Full-Scale Output | 0 to 40 mV at 10 V | 0 to 40 mV at 10 V | 0 to 40 mV at 10 V | 0 to 40 mV at 10 V | 0 to 40 mV at 10 V | 0 to 20 mV at 10 V |
| Sensitivity | 0.2 mV/kPa | 0.2 mV/kPa | 0.2 mV/kPa | 0.2 mV/kPa | 0.2 mV/kPa | 0.2 mV/kPa |
| Excitation Voltage | 10 V typical | 10 V typical | 10 V typical | 10 V typical | 10 V typical | 10 V typical |
| Port Style | Top port, 0.12 in tube | Axial port | Top port | Top port, tape-and-reel | Dual port | Axial port |
| Lifecycle Status | Last-time-buy (EOL notice) | Active | Active | Active | Active | Active |
Bảo phân biệt quan trọng
- Absolute pressure reference sealed inside the M-PAC module (vsMPXM2202GS)
- Wider 200 kPa range vs 100 kPa alternatives (vsMPXM2102A)
- Mature, broadly documented M-PAC-5 footprint (vsMPXM2202A (axial port variant))
Ghi chú thiết kế
The MPXM2202AS output is a differential mV-level signal on pins 2 and 4; route these traces as a guarded pair on inner PCB layers to reject common-mode noise. Keep traces shorter than 50 mm and place the instrumentation amplifier within 25 mm of the sensor to avoid picking up 50/60 Hz pickup. Twisted-pair cabling from the sensor to a remote amplifier is acceptable, but add a 10 nF bypass cap at the amplifier inputs.
Apply the 10 V excitation through a low-noise LDO such as the TPS7A4701 rather than directly from a switching converter. Bridge self-heating from ripple current shifts the zero-pressure offset; using an LDO with <5 uVrms output noise limits the drift contribution to under 0.01%FS. Estimate: a 5 mA excitation current and 10 V supply produces 50 mW dissipation at the bridge, well within thermal limits.
Despite on-chip 0C-85C temperature compensation, do not place the MPXM2202AS adjacent to power components. A 10C local temperature rise shifts the zero offset by up to 0.5%FS even with compensation. Mount the sensor on an isothermal copper pour separated from the rest of the board, and avoid forced-air heating from adjacent regulators.
Do not expose the MPXM2202AS to liquids or corrosive media - the silicon die is exposed to the gas through the top port. For water or fuel sensing, fit a media-isolated diaphragm in the pneumatic line. Also avoid miswiring pins 1 and 3 (excitation) - reversed polarity produces negative output that saturates downstream amplifiers without indicating a fault to software.
Thông tin tuân thủ
Compliance flags not directly confirmed in the verified web data snippets. The NXP product page does not display the green-compliance badge in the retrieved excerpt, so RoHS/REACH status is set to 'unknown' pending direct datasheet verification. AEC-Q100 is not applicable because this is a sensor module, not an automotive-grade IC line.
