MPXM2102AST1128 - 100 kPa Compensated Pressure Sensor | NXP
Артикул: MPXM2102AST1128 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $26.75 | $267,50 |
| 100 | $24.95 | $2.495,00 |
| 500 | $22.1 | $11.050,00 |
| 1.000 | $19.4 | $19.400,00 |
MPXM2102AST1128 Обзор
A piezoresistive pressure sensor is a MEMS device in which diffused strain gauges on a silicon diaphragm change resistance under applied pressure, generating a small differential voltage that is proportional to pressure. The MPXM2102A family belongs to the broader category of board-mount pressure sensors (sensor -> transducer -> MEMS -> semiconductor) used wherever a clean, linear, calibrated pressure signal is required without a discrete amplifier circuit.
Key features include a 0 to 100 kPa operating pressure range (approximately 0 to 14.5 psi or 0 to 1 bar), ratiometric output for accuracy over supply variation, internal temperature compensation across 0 to 85 °C, and a robust single-element port (Sensor-5 case style) suitable for manifold mounting. The integrated signal-conditioning circuitry delivers a typical full-scale span of 40 mV at 10 V excitation, useful for low-noise instrumentation readouts.
The MPXM2102A architecture uses an X-ducer strain gauge on a chemically-etched silicon diaphragm; the on-chip thin-film network performs offset, span and temperature calibration, eliminating external compensation resistors. The 10 V unipolar excitation is intentionally high to maximize output span and PSRR-style supply-noise rejection in industrial cabling environments.
Typical applications include medical spirometers and patient monitors, HVAC air-flow monitoring, altimeters and barometric instruments, industrial pneumatic controls, and process-control analog front-ends. The Sensor-5 package provides a barbed pressure port for tube attachment in low-pressure gas-flow designs.
When designing with this part, add a ratiometric ADC reference tied to the 5 V (or 10 V) excitation rail to preserve accuracy when supply tolerance drifts. Choose MPXM2102AST1 without the tape-and-reel trailer if your line is hand-loaded or you are prototyping with through-hole Sensor-5 sockets.
Аналоги без доработки для MPXM2102AST1128 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MPXM2102AST1128 (тот же форм-фактор и посадочное место) — отличается по Mounting Type, Output Type, Pressure Type, Termination Style, Linearity.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MPXM2102AST1
✅ Прямая замена✓ В наличии
$10.65 / шт.
Открыть даташит →MPX2102DP
✅ Прямая замена✓ В наличии
$9.85 / шт.
Открыть даташит →MPXM2102AST1128 Максимальные параметры и электрические характеристики
| Manufacturer | NXP Semiconductors |
| Pressure Type | Gage (Differential Single-Port Vented) |
| Operating Pressure Range | 0 kPa to 100 kPa |
| Supply Voltage (Excitation) | 10 V dc typical |
| Тип выхода | Analog, ratiometric voltage |
| Full-Scale Span | 40 mV typical at 10 V excitation |
| Off-Port Pressure | Vented to atmosphere via rear side |
| Temperature Compensation | On-chip, 0 °C to 85 °C |
| Диапазон рабочих температур | -40 °C to 125 °C |
| Корпус / Типоразмер | Sensor-5 (5-element small outline, through-hole) |
| Тип монтажа | Through-hole, board mount |
| Port Style | Single axial barbed pressure port |
| Termination Style | Gull-wing through-hole leads |
| AEC-Q100 Qualification | Not qualified |
| Media Compatibility | Clean, dry, non-corrosive gases (air only) |
| Linearity | ±0.1 % typical (±0.25 % max) |
Конфигурация выводов MPXM2102AST1128
| Контакт 1 | Vout+ — Positive differential output to instrumentation amplifier |
| Контакт 2 | GND — Ground / excitation return |
| Контакт 3 | Vin- — Excitation negative / not connected depending on bridge configuration |
| Контакт 4 | Vin+ — 10 V excitation supply |
Типичное применение
MPXM2102AST1128 подходит для 6 применениеs: Medical Spirometer / Respiratory Monitor, HVAC Duct Static Pressure Monitoring, Industrial Altimeter / Barometric Instrument, Pneumatic / Gas-Flow Process Control, Patient Monitor Blood Pressure Cuff Sensing, VAV / Airflow Differential Pressure Sensor.
Medical Spirometer / Respiratory Monitor
The MPXM2102AST1128's 0-100 kPa range with 0.25 % linearity and on-chip temperature compensation across 0-85 °C matches differential pressure across flow heads in spirometers and CPAP machines. Placed upstream of an instrumentation amplifier with 10 V ratiometric excitation, it preserves calibration across ambient shift; unlike MPX10 it requires no external compensation network.
Рекомендуется
HVAC Duct Static Pressure Monitoring
The MPXM2102AST1128 maps HVAC duct static pressure (typically -0.5 to +1 kPa working but capable of 100 kPa burst) into a ratiometric 0-40 mV signal at 10 V excitation. Mounted with the barbed port tee'd into the duct, it feeds a 12-bit ADC front-end; its small Sensor-5 footprint fits behind-handle transmitter PCBs.
Рекомендуется
Industrial Altimeter / Barometric Instrument
The 0-100 kPa operating range covers sea-level (101.325 kPa) altitude changes down to high-altitude stations. The MPXM2102AST1128's on-chip temperature compensation across 0-85 °C allows unheated outdoor instrument enclosures to maintain 1 kPa accuracy, and ratiometric ADC read-out removes supply drift.
Рекомендуется
Pneumatic / Gas-Flow Process Control
The MPXM2102AST1128 senses compressed-air or process-gas pressure in 0-100 kPa lines, with linear ratiometric output to PLC analog inputs. Its through-hole Sensor-5 package and axial barbed port suit manifold mounting; the wide -40 to 125 °C operating range handles outdoor or factory-floor thermal swings.
Рекомендуется
Patient Monitor Blood Pressure Cuff Sensing
The MPXM2102AST1128 captures cuff pressure during oscillometric NIBP measurement where 0-300 mmHg is required but the sensor's 0-100 kPa range (75 kPa = 560 mmHg) covers most W cuff pressures. On-chip calibration reduces the bill of materials and saves clinically-significant design time versus discrete transducer circuits.
Рекомендуется
VAV / Airflow Differential Pressure Sensor
Variable Air Volume box sensor front-ends use the MPXM2102AST1128 across its 0-100 kPa linear range to read duct differential pressure with 10 V ratiometric excitation. Its single axial port mates with Tygon tubing; unlike switching-interface sensors it adds no EMI to nearby microprocessors or RF stacks.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MPXM2102AST1128 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MPXM2102AST1 | MPX2102DP |
|---|---|---|---|
| Package / Case | Sensor-5 (through-hole, single axial port) | Sensor-5 (through-hole, single axial port) - same | Unibody 6-pin (dual-port) - different |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Operating Pressure Range | 0 kPa to 100 kPa | 0 kPa to 100 kPa | 0 kPa to 100 kPa |
| Supply Excitation | 10 V dc | 10 V dc | 10 V dc |
| Full-Scale Span | 40 mV typical | 40 mV typical | 40 mV typical |
| On-Chip Compensation | Yes (0-85 °C) | Yes (0-85 °C) | Yes (0-85 °C) |
| Linearity | ±0.25 % max | ±0.25 % max | ±0.25 % max |
| Port Style | Single axial barbed | Single axial barbed | Dual axial barbed |
| Packaging Format | Tape & Reel (trailer 1128) | Standard configuration | Tray |
Ключевые отличия
- Industry-standard 0-100 kPa with on-chip temperature compensation (против MPXM2102AST1)
- Single axial port in low-profile Sensor-5 case (против MPX2102DP)
Заметки по проектированию
Excite the MPXM2102AST1128 from a clean 10 V dc source. The 40 mV span is ratiometric to this supply, so feeding the same 10 V into the ADC's reference input preserves overall accuracy when supply tolerance drifts. Use a 10 kΩ resistor in series with each bridge lead if the excitation is shared with adjacent load-switching circuitry.
Estimate: at 10 V excitation the bridge draws roughly 6 mA, so confirming within datasheet bounds before sharing the rail with nearby actuators or fan drivers is critical. Differential signal wiring between the Sensor-5 port pins and the ADC instrumentation amplifier should run as a tightly-twisted pair; long cable harnesses must be shielded.
Route the Sensor-5 leads along the shortest path to the front-end instrumentation amplifier (e.g., INA128, NCS21911). The barbed pressure port should be mounted so that condensed moisture drains away from the diaphragm - in HVAC ducts, mount the port vertically. Use a silicone RTV sealant on the port stem in outdoor installations to keep humidity out of the rear vent.
Информация о соответствии
Compliance status values are marked unknown as the NXP MPXM2102A family datasheet was not fully provided; consult the manufacturer's product page before final qualification.
