MPXM2102AS - 100kPa Absolute Pressure Sensor | NXP | Industrial
부품 번호: MPXM2102AS ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.2 | $252.00 |
| 100 | $22.1 | $2,210.00 |
| 500 | $19.75 | $9,875.00 |
| 1,000 | $17.4 | $17,400.00 |
MPXM2102AS 개요
A piezoresistive pressure sensor is a transducer that converts applied pressure into a proportional electrical signal by exploiting the piezoresistive effect of silicon — when mechanical strain is applied to a doped silicon resistor, its resistance changes predictably. In the bridge topology used here, four strain gauges form a Wheatstone bridge on a monolithic silicon diaphragm; an applied pressure deflects the diaphragm and unbalances the bridge, producing a differential output voltage that scales linearly with pressure. The on-chip thin-film resistor network calibrates and temperature-compensates this output, placing absolute-pressure sensing in the broader transducer hierarchy alongside gauge (relative) and differential pressure sensors. These sensors sit within the broader MEMS and sensor category used in industrial, medical, and HVAC equipment.
Key features of the MPXM2102AS include an operating pressure range of 0 to 100 kPa (0 to 14.5 PSI absolute), a typical full-scale output of 40 mV at 10 V excitation, an offset of 0 mV, and a supply voltage of up to 10 V DC. The integrated calibration network provides temperature compensation across 0C to 85C, simplifying the analog front-end design by removing the need for external compensation circuitry. The 5-SMD top-port package accepts a 2.97 mm tube, allowing in-line pneumatic connection in sealed systems.
Architecturally, the device uses a single monolithic silicon die with an integrated vacuum reference for absolute measurement. The piezoresistive bridge delivers a ratiometric output proportional to supply voltage, which simplifies ADC interfacing across varying supply rails. Typical non-linearity is in the low-percent range, and the calibration laser-trimmed resistor network standardizes part-to-part output across production lots, supporting system-level accuracy without per-unit trimming.
Typical applications include barometric and weather-station instrumentation, medical respiratory equipment, altimeters and variometers, industrial process control, and HVAC duct pressure monitoring where 0-100 kPa absolute pressure conversion into a clean analog signal is required. When designing with this device, drive the input from a low-noise regulated supply to minimize excitation drift and add an instrumentation amplifier at the differential outputs for single-ended ADC conversion.
드롭인 대체품: MPXM2102AS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MPXM2102AS (동일 폼 팩터 및 풋프린트) — 차이점: Output Type, Operating Pressure Range, Package, Supply Voltage, Mounting Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MPX2102ASX
✅ 드롭인✓ 재고 있음
$10.95 / 개
데이터시트 보기 →MPXM2102A
✅ 드롭인✓ 재고 있음
$10.4 / 개
데이터시트 보기 →MPX2102AP
✅ 드롭인✓ 재고 있음
$9.5 / 개
데이터시트 보기 →MPXV2102G
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MPXM2202AS
✅ 드롭인✓ 재고 있음
$5.86 / 개
데이터시트 보기 →MPXM2102AS 최대 정격 & 전기적 특성
| Pressure Type | Absolute |
| Operating Pressure Range | 0 to 100 kPa (0 to 14.5 PSI) |
| 출력 유형 | Analog voltage (Wheatstone bridge, ratiometric) |
| 출력 전압 범위 | 0 mV to 40 mV typical (at 10 V excitation) |
| Offset | 0 mV |
| 공급 전압 | Up to 10 V DC |
| 동작 온도 범위 | 0C to +85C (compensated) |
| Temperature Compensation | On-chip (calibrated 0C to 85C) |
| Pressure Port | Top port, 0.12" (2.97 mm) tube |
| 패키지 / 케이스 | 5-SMD Module, top port |
| 실장 유형 | Surface Mount |
| Sensor Technology | Silicon piezoresistive (monolithic diaphragm + on-chip thin-film resistor network) |
MPXM2102AS 핀 구성
| 핀 1 | Vout+ — Differential output (positive) |
| 핀 2 | GND — Ground |
| 핀 3 | VEX — Excitation / supply voltage |
| 핀 4 | Vout- — Differential output (negative) |
| 핀 5 | NC — Not connected (pin reserved per MPX case 1320A) |
일반적인 애플리케이션
MPXM2102AS 적합 용도: 6 애플리케이션s: Barometric and Weather Station Pressure Sensing, Medical Respiratory and Ventilator Equipment, HVAC Duct and Airflow Pressure Monitoring, Industrial Process Control Pressure Monitoring, Altimeter and Variometer Instrumentation, Portable Handheld Pneumatic Testers.
Barometric and Weather Station Pressure Sensing
The MPXM2102AS is a strong fit for barometric and weather-station sensing because its 0 to 100 kPa absolute range covers the standard atmospheric-pressure band of 870 to 1080 mbar (-43 to +80 kPa relative to 100 kPa reference). The on-chip vacuum reference and 0 mV to 40 mV ratiometric output enable ratiometric ADC conversion that auto-cancels supply drift, which is essential for long-term weather data loggers. The 0C to 85C calibrated band covers outdoor enclosures with limited thermal management. Pair the sensor with a 24-bit sigma-delta ADC (such as the ADS1220) for sub-1 Pa pressure-resolution altimetry.
추천
Medical Respiratory and Ventilator Equipment
In medical respiratory equipment the MPXM2102AS provides airway and lung-pressure measurement over the 0 to 100 kPa absolute range, with the same Case 1320A top-port pneumatic inlet used on previous-generation ventilators. The on-chip 0C to 85C temperature compensation avoids per-patient recalibration, while the 0 mV to 40 mV output drives an INA128 amplifier into a 16-bit ADC for breath-cycle digitization. Designers should place a hydrophobic antimicrobial filter inline with the 2.97 mm tube to prevent cross-contamination between patients. Because the device measures absolute pressure, barometric compensation must be applied in software for accurate gauge pressure reporting.
추천
HVAC Duct and Airflow Pressure Monitoring
Within HVAC duct and airflow monitoring the MPXM2102AS converts pneumatic pressure in the 0 to 100 kPa range into a clean analog signal for variable-air-volume (VAV) boxes and static-pressure probes. Its ratiometric output allows a single regulated 5 V or 10 V rail to drive both the sensor and the ADC reference, simplifying power-tree design. The 5-SMD top-port module accepts the standard 2.97 mm tubing used in commercial HVAC installations, simplifying retrofit integration. For airflow applications, install a flow restrictor upstream to keep pressure within the calibrated 0 to 100 kPa window.
추천
Industrial Process Control Pressure Monitoring
For industrial process-control pressure monitoring the MPXM2102AS delivers 100 kPa absolute measurement for vacuum-pack seal integrity, autoclave overpressure detection, and low-pressure pneumatic supply monitoring. The on-chip laser-trimmed resistor network eliminates per-unit gain calibration, reducing production test time. The 5-SMD module is mechanically robust and tolerates industrial thermal environments inside its 0C to 85C compensated band. Pair the sensor with a process-grade PLC analog input module or an industrial 4-20 mA transmitter board (using XTR105) for long cable runs.
추천
Altimeter and Variometer Instrumentation
In altimeter and variometer designs the MPXM2102AS measures atmospheric pressure changes with sufficient resolution to resolve small altitude differences when paired with a 24-bit ADC. Its 0 to 100 kPa absolute range covers sea level (approximately 101.325 kPa) down to roughly 1.85 km elevation, fitting general-aviation and drone altitude needs. The small 5-SMD top-port form factor simplifies inlet geometry in tight enclosures. Software should convert pressure to altitude using the international barometric formula for static pressure readings.
추천
Portable Handheld Pneumatic Testers
For portable handheld pneumatic testers and digital manometers the MPXM2102AS offers 0 to 100 kPa absolute measurement in a compact top-port package that fits a handheld enclosure. The ratiometric 0 mV to 40 mV output scales with battery voltage, which can be cancelled by reading battery voltage simultaneously and dividing in software. The 0C to 85C calibrated band matches typical calibration-lab conditions, eliminating field trim. For battery-powered operation, switch the sensor excitation on only during measurement to extend runtime.
추천
추천 제품 요약
엔지니어링 참조 데이터: MPXM2102AS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MPX2102ASX | MPXM2102A | MPX2102AP | MPXV2102G | MPXM2202AS |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 5-SMD Module (Case 1320A, top port) | 5-SMD Module (Case 1320A, top port) - same | 5-SMD Module (Case 1320A, top port) - same | 5-SMD Module (Case 1320A, top port) - same | 5-SMD Module (Case 1320A, top port) - same | 5-SMD Module (Case 1320A, top port) - same |
| Pressure Type | Absolute | Absolute | Absolute | Absolute | Gauge | Absolute |
| Operating Pressure Range | 0 to 100 kPa (14.5 PSI) | 0 to 100 kPa (14.5 PSI) | 0 to 100 kPa (14.5 PSI) | 0 to 100 kPa (14.5 PSI) | 0 to 100 kPa (14.5 PSI, gauge) | 0 to 200 kPa (29 PSI) |
| Output Span | 40 mV typical (at 10 V excitation) | 40 mV typical (at 10 V excitation) | 40 mV typical (at 10 V excitation) | 40 mV typical (at 10 V excitation) | 40 mV typical (at 10 V excitation) | 40 mV typical (at 10 V excitation) |
| Supply Voltage (max) | 10 V DC | 10 V DC | 10 V DC | 10 V DC | 10 V DC | 10 V DC |
| Temperature Compensation | On-chip, 0C to 85C | On-chip, 0C to 85C | On-chip, 0C to 85C | On-chip, 0C to 85C | On-chip, 0C to 85C | On-chip, 0C to 85C |
| Port Orientation | Top | Top | Top | Axial | Top | Top |
| Sensor Family | MPX2102 (absolute) | MPX2102 (absolute) | MPX2102 (absolute) | MPX2102 (absolute) | MPX2102 (gauge) | MPX2202 (absolute) |
주요 차별점
- On-chip temperature compensation from 0C to 85C (vs MPXV2102G)
- Absolute pressure reference built in (vs MPXV2102G)
- Wider full-scale range option within the same footprint (vs MPXM2202AS)
- Same MPX2102 die family as widely deployed MPXM2102A (vs MPXM2102A)
설계 노트
The MPXM2102AS produces a low-level differential output of 40 mV typical that is highly susceptible to thermal EMF and ground noise. Route the bridge outputs as a tightly coupled differential pair to an instrumentation amplifier such as the INA128, and place the amplifier within 25 mm of the sensor to minimize loop area. Use a guard ring tied to Vout- potential to absorb stray leakage currents on the PCB surface.
Driven from a regulated 10 V excitation (or 5 V for half-span) the sensor output is ratiometric to the supply. Use a low-noise low-dropout regulator such as the LP2985 or REF02 reference to power the bridge, and tie the ADC reference input to the same rail for ratiometric conversion that cancels supply drift. Estimated: bridge current at 10 V is approximately 5 mA into the on-chip thin-film network; use a 10 ohm series resistor and a 10 nF bypass cap on the excitation pin to suppress switching-noise injection.
Mount the MPXM2102AS on the edge of the PCB with the 0.12" tube inlet unobstructed so the pneumatic fitting can be installed. Avoid placing tall components within 5 mm of the inlet to prevent interference. Apply a thin bead of silicone conformal coating around the sensor cavity (avoiding the tube inlet) to provide humidity protection without sealing the pneumatic port.
Do not exceed the 10 V maximum supply, as the on-chip thin-film resistor network can be permanently damaged. Apply pressure only through the top tube inlet to avoid damaging the silicone gel and stress-relief gel layers. Because the device is calibrated for absolute pressure, do not assume gauge readings without software compensation for ambient barometric pressure.
규정 준수 정보
Compliance status not explicitly stated in the provided NXP product page or STMicroelectronics datasheet PDF snippet as of 2026-10-15. The MPX2102 family is widely deployed in industrial and medical designs and is generally understood to comply with RoHS and REACH through NXP's product stewardship program, but explicit certification was not present in the verified data.
