MPX2102DP - 100kPa Differential Pressure Sensor, 4-SIP | NXP
부품 번호: MPX2102DP ⚠ 최종 구매| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.75 | $1,375.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.85 | $9,850.00 |
MPX2102DP 개요
A pressure sensor is a transducer that converts an applied pressure into a proportional analog electrical signal; the MPX2102 uses a monolithic silicon diaphragm with an integrated thin-film resistor strain-gauge network, laser-trimmed for high accuracy and linearity, so the differential output between P1 and P2 ports produces a ratiometric voltage directly proportional to applied pressure. Within the broader sensor taxonomy, this part is a piezoresistive MEMS pressure sensor belonging to the micro-electromechanical signal chain, commonly grouped alongside load cells and strain-gauge transducers in industrial and medical instrumentation.
Key features include a 0–100 kPa (0–14.5 PSI) differential operating range, 0 mV to 40 mV full-scale output at 10 V excitation, on-chip temperature compensation from 0 °C to +85 °C, and a typical full-scale span of 40 mV that simplifies downstream ADC conditioning. The unibody 4-SIP package integrates the port tube, die, and compensation network, eliminating external temperature-calibration circuitry.
The architecture uses a piezoresistive Wheatstone bridge where four diffused resistors change resistance proportionally to membrane stress; the differential bridge output is ratiometric to the supply, so noise-rejection improves when the sensor shares a clean, low-ripple 10 V reference with the ADC. Full-scale span drift is held within ±0.5 % over the compensated temperature range, which is acceptable for medical inhalation and industrial pneumatic control loops.
Typical applications include medical spirometers and respirators, HVAC variable-air-volume boxes, process-control pneumatic transmitters, barometric altimeters for portable instrumentation, and industrial pneumatic regulators where differential pressure across an orifice plate must be linearized at the system level.
When designing with the MPX2102DP, place a low-offset instrumentation amplifier (e.g., INA125 or AD620) within 100 mm of the sensor pins to avoid injecting PCB leakage drift into the millivolt signal, and decouple the 10 V excitation rail with a 100 nF ceramic capacitor adjacent to Vcc to suppress bridge noise.
This page synthesizes distributor inventory data, drop-in compatible MPX/MPXV variants, and practical instrumentation-amplifier design notes not covered in the original on-chip temperature compensated silicon pressure sensor datasheet.
드롭인 대체품: MPX2102DP — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MPX2102DP (동일 폼 팩터 및 풋프린트) — 차이점: Output Type, Mounting Type, Technology, Package / Case, Operating Pressure Range.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MPX2102GP
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$5.4 / 개
데이터시트 보기 →MPX2100DP
✅ 드롭인✓ 재고 있음
$5.95 / 개
데이터시트 보기 →MPX2102AP
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$9.5 / 개
데이터시트 보기 →MPXV2102G
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
MPX2202DP
✅ 드롭인✓ 재고 있음
$25.14 / 개
데이터시트 보기 →MPX2053DP
✅ 드롭인✓ 재고 있음
$12.95 / 개
데이터시트 보기 →MPX2102DP 최대 정격 & 전기적 특성
| 센서 유형 | Piezoresistive Pressure Sensor |
| Pressure Type | Differential (Dual Port) |
| Operating Pressure Range | 0 kPa to 100 kPa (0 PSI to 14.5 PSI) |
| Full-Scale Output | 0 mV to 40 mV at 10 V excitation |
| Supply Voltage (Excitation) | 10 V typical (max specified separately) |
| Port Size | Male, 0.19" (4.93 mm) tube, Dual |
| 동작 온도 범위 | -40 °C to +125 °C |
| Compensated Temperature Range | 0 °C to +85 °C |
| 패키지 / 케이스 | 4-SIP Module (Unibody) |
| Termination Style | Through-Hole PCB |
| 출력 유형 | Analog Wheatstone Bridge (ratiometric mV) |
| Technology | On-chip Temperature Compensated Silicon |
| 실장 유형 | Through-Hole, Dual Vertical Port |
| Series | MPX2102 |
MPX2102DP 핀 구성
| 핀 1 | Vcc (+) — Bridge excitation supply (10 V typical) |
| 핀 2 | Vout (+) — Positive bridge output (ratiometric mV) |
| 핀 3 | GND / Vcc (-) — Bridge common / return |
| 핀 4 | Vout (-) — Negative bridge output (ratiometric mV) |
일반적인 애플리케이션
MPX2102DP 적합 용도: 7 애플리케이션s: Medical Spirometer / Ventilator Flow Sensor, HVAC Variable Air Volume (VAV) Box Pressure Sensing, Industrial Pneumatic Pressure Transmitter, Barometric Altimeter / Portable Pressure Instrumentation, Pneumatic Filter / Regulator Differential Monitor, Blood Pressure Cuff / Non-Invasive Hemodynamic Monitor, Pneumatic Control Valve Position Feedback.
Medical Spirometer / Ventilator Flow Sensor
The MPX2102DP is widely deployed in medical spirometers and ventilator flow heads where the differential pressure across a laminar-flow element is converted into flow rate via the square-root relationship (Q ∝ √ΔP). Its 0–100 kPa differential range comfortably covers inspiratory and expiratory circuit pressures, and the 40 mV full-scale output at 10 V excitation provides sufficient resolution after amplification by a low-offset instrumentation amplifier such as the INA125. The on-chip temperature compensation from 0 °C to +85 °C matches the clinical-use envelope, reducing calibration drift across patient-room ambient swings. Its dual-port tube nipples accept standard 0.19" pneumatic tubing for direct inline assembly into breathing circuits.
추천
HVAC Variable Air Volume (VAV) Box Pressure Sensing
Building-automation VAV boxes use the MPX2102DP to measure the differential pressure across the damper orifice plate, providing feedback to the controller for closed-loop airflow regulation. The 0–100 kPa range covers the 0–1 inH₂O (≈249 Pa) to 0–10 inH₂O operating span typical of commercial ductwork when paired with appropriate orifice sizing. The ratiometric output scales cleanly with 10 V DC excitation, which is shared with the ADC reference to reject supply-ripple on the millivolt signal. The dual-port unibody design tolerates dusty recirculated airstreams and integrates easily into spiral-duct pneumatic tees.
추천
Industrial Pneumatic Pressure Transmitter
Process-control pneumatic transmitters leverage the MPX2102DP's differential transfer function to monitor line pressure, filter status, and vacuum levels in 0–100 kPa industrial systems. The hermetic 4-SIP unibody isolates the silicon die from condensing moisture and oil mist common in factory compressed-air networks, and the 10 V excitation allows direct interface to 4–20 mA loop-powerable transmitter front ends after the amplifier stage. Designers appreciate the ±1.5 % typical accuracy that, after analog trim, supports IEC 60584-1 process-control tolerances without resorting to higher-cost digital sensor modules.
추천
Barometric Altimeter / Portable Pressure Instrumentation
Handheld digital altimeters and weather-station barometers use the MPX2102DP to capture atmospheric pressure in the 80–105 kPa range when configured in gauge mode by venting the low-pressure port. The on-chip temperature compensation maintains altitude-readout accuracy within tens of meters across day-night thermal swings, and the millivolt-level output pairs naturally with low-power ADCs inside battery-driven devices. Designers appreciate the small 4-SIP outline that adds minimal height to slim-line handset enclosures.
추천
Pneumatic Filter / Regulator Differential Monitor
Compressed-air filter-status monitors use the MPX2102DP to detect increasing pressure differential across a filter element, signalling the need for element replacement before downstream tools starve. Its dual-port form factor pipes directly into upstream and downstream manifolds, while the 0–100 kPa range covers 0–15 psig plant-air rails without range switching. The 40 mV output drives a threshold comparator (e.g., LM393) for simple LED alert logic without an MCU, or feeds an ADC for trending filter-loading curves in SCADA systems.
추천
Blood Pressure Cuff / Non-Invasive Hemodynamic Monitor
Non-invasive blood-pressure (NIBP) cuffs and oscillometric monitors use the MPX2102DP as the cuff-pressure transducer, exploiting its linear 0–100 kPa range covering both inflation and decay phases. The on-chip temperature compensation keeps calibration stable across patient-skin-temperature variations, and the differential dual-port format cancels ambient atmospheric drift when one port is vented to the room. The amplified output drives an ADC feeding oscillometric peak-envelope detection firmware for systolic/diastolic computation in patient-monitoring carts.
추천
Pneumatic Control Valve Position Feedback
Pneumatic actuated valve positioners use the MPX2102DP to measure the differential pressure across the actuator's piston, providing closed-loop position feedback for 3-15 psi process control loops common in oil-and-gas and chemical plants. The 0–100 kPa range maps cleanly to 0–15 psig actuator working pressure, and the rugged 4-SIP unibody tolerates the mechanical vibration typical of valve-actuator assemblies mounted near pipelines. Its ratiometric output allows for easy calibration trim via a gain-set resistor to translate the millivolt signal into a 4–20 mA current loop output.
추천
추천 제품 요약
엔지니어링 참조 데이터: MPX2102DP — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MPX2102GP | MPX2100DP | MPX2102AP | MPXV2102G | MPX2202DP | MPX2053DP |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 4-SIP Module (Dual Port) | 4-SIP Module (Single Port gauge) | 4-SIP Module (Dual Port) - same | 4-SIP Module (Absolute Port) | 4-SIP Module (Surface Mount Port) - same | 4-SIP Module (Dual Port) - same | 4-SIP Module (Dual Port) - same |
| Pressure Range | 0-100 kPa (0-14.5 PSI) | 0-100 kPa (gauge) | 0-100 kPa (differential) | 0-100 kPa (absolute) | 0-100 kPa (gauge) | 0-200 kPa (differential) | 0-50 kPa (differential) |
| Full-Scale Output | 40 mV at 10 V | 40 mV at 10 V | 40 mV at 10 V | 40 mV at 10 V | 40 mV at 10 V | 40 mV at 10 V | 40 mV at 10 V |
| Pressure Type | Differential (Dual Port) | Gauge (Single Port) | Differential (Dual Port) | Absolute (Single Port) | Gauge (Single Port) | Differential (Dual Port) | Differential (Dual Port) |
| Port Size | 0.19" (4.93 mm) tube, Dual | 0.19" (4.93 mm) tube, Single | 0.19" (4.93 mm) tube, Dual | 0.19" (4.93 mm) tube, Single | Surface-mount port style | 0.19" (4.93 mm) tube, Dual | 0.19" (4.93 mm) tube, Dual |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| Price Tier (1 pc) | $18.50 | $18.50 | $15.00 - $17.00 | $18.50 | $19.00 - $21.00 | $22.00 - $24.00 | $15.00 - $17.00 |
주요 차별점
- On-chip temperature compensation from 0 °C to +85 °C (vs MPX2053DP)
- Differential dual-port tube nipples (vs MPX2102GP)
- Laser-trimmed thin-film bridge network (vs MPXV2102G (surface-mount variant))
설계 노트
The MPX2102DP produces a millivolt-level ratiometric output that is highly susceptible to PCB leakage, thermocouple junctions, and supply ripple. Estimated: at 10 V excitation the full-scale span is 40 mV, so even 100 µV of pickup represents 0.25 %FS error. Place a low-offset instrumentation amplifier such as INA125 within 100 mm of the sensor pins, route sensor traces over a continuous ground plane, and decouple the 10 V excitation with a 100 nF X7R ceramic adjacent to Vcc and Vex- pins.
Power the bridge from a low-noise, low-drift 10 V reference (e.g., REF02 or LT1019) rather than a switching regulator. Estimated: a 1 mV ripple on the 10 V excitation translates directly to 4 µV of bridge output ripple (0.01 %FS), but a 100 mV switching ripple would inject 400 µV - 1 %FS - on top of the 40 mV signal. Sharing the 10 V reference with the ADC reference further rejects power-rail noise via ratiometric measurement.
Avoid using lead-free solder rework stations above 300 °C for more than 30 seconds on the 4-SIP plastic unibody - the integrated tube nipples can deform and create pneumatic leaks. Also, never apply pressure higher than 200 kPa to either port, since the datasheet specifies safe overpressure limits well above operating range but below die rupture; for static overpressure protection consider a snubber orifice in series with each port.
규정 준수 정보
RoHS, REACH, lead-free, halogen-free, and conflict-minerals status not explicitly confirmed in the provided NXP/EOL overview; engineers should request the latest declaration from NXP. Part is not AEC-Q100 qualified - it is not intended for automotive under-hood applications. The 'Last Time Buy' status per the NXP product page suggests compliance documentation may have been archived with the part; verify with NXP support before medical/regulatory submissions.
