MPXC2011DT1 - 10kPa Differential Pressure Sensor 4-SSIP | NXP
料号： MPXC2011DT1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $24.3 | $24.30 |
| 10 | $21.85 | $218.50 |
| 100 | $19.42 | $1,942.00 |
| 500 | $17.1 | $8,550.00 |
| 1,000 | $14.95 | $14,950.00 |
MPXC2011DT1 概述
A pressure sensor is a transducer that converts an applied pneumatic or hydraulic force into an electrical signal, and the differential subclass measures the pressure difference between two ports rather than against atmosphere. The MPXC2011DT1 sits in the broader hierarchy of MEMS sensors > pressure sensors > piezoresistive differential sensors > low-pressure signal-chain ICs, commonly paired with instrumentation amplifiers in medical, HVAC, and analytical-instrument front ends.
Key features include on-chip temperature compensation and calibration, a piezoresistive Wheatstone-bridge strain gauge fabricated on a silicon diaphragm, a 4-SSIP single inline through-hole module with an integrated side-port pressure inlet, and 0 to 10 kPa operating range matched to respiratory and air-flow measurement applications. The 4-SSIP Chip Pak provides a small 7.6 mm x 12.8 mm footprint with barbed side-port hose connection.
The device uses Freescale/NXP's piezoresistive silicon technology in which four ion-implanted resistors arranged in a Wheatstone bridge change resistance proportionally to diaphragm strain. The bridge is laser-trimmed during manufacture so that span, offset, and temperature coefficient are calibrated, allowing direct interface to a low-noise differential amplifier without per-unit compensation.
Typical applications include medical respiratory monitoring (spirometry, ventilators), HVAC variable-air-volume boxes, industrial process control, analytical instruments, and portable low-pressure measurement. The differential configuration makes it particularly suitable for flow sensing across orifice plates, where the pressure drop is on the order of a few kPa.
When designing with this device, plan for amplification because the 25 mV full-scale output is too small for direct ADC connection - typically a fixed-gain instrumentation amplifier with a gain of 40 to 160 is placed immediately after the sensor. The sensor output is ratiometric to the excitation voltage, so a clean, low-noise 5 V or 10 V reference is required for absolute accuracy.
This page consolidates distributor pricing, pin-compatible alternatives, and practical signal-chain design guidance that goes beyond the manufacturer datasheet's basic specifications.
直接替换替代料： MPXC2011DT1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MPXC2011DT1 （相同外形与封装尺寸） ——差异在于 Output Type, Mounting Type, Excitation Voltage, Operating Temperature, Operating Pressure Range.
快速对比工具——选择替代料号进行并排对比：
MPXC2012DT1
✅ 直接替换✓ 有现货
$7.4 / 个
查看数据手册 →MPX10DP
✅ 直接替换✓ 有现货
$6.09 / 个
查看数据手册 →MPX12DP
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →MPXC2011GP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MPX2010DP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$8.5 / 个
查看数据手册 →MPXC2011DT1 最大额定值与电气特性
| Pressure Type | Differential |
| Operating Pressure Range | 0 kPa to 10 kPa (0 PSI to 1.45 PSI) |
| Full-Scale Output | 25 mV typical at 10 V excitation |
| Sensitivity | 2.5 mV/kPa typical |
| Excitation Voltage | 3 V DC to 10 V DC (10 V nominal) |
| 输出类型 | Analog Wheatstone bridge (ratiometric) |
| 封装 | 4-SSIP Chip Pak module, side port |
| Port Style | Female, 3.25 mm (0.128 in) barbed side port |
| Termination Style | Through-hole PCB, 4 leads |
| 工作温度 | 0 °C to +85 °C |
| Compensation | On-chip temperature compensated and calibrated |
| Technology | Piezoresistive silicon strain gauge |
| Module Dimensions | 7.6 mm x 12.8 mm nominal |
| 安装类型 | Through-hole (PCB mount with side-port tubing) |
MPXC2011DT1 引脚配置
| 引脚 1 | VCC — Excitation voltage (3 V to 10 V DC) |
| 引脚 2 | Vout+ — Positive bridge output (Vout+) |
| 引脚 3 | Vout- — Negative bridge output (Vout-) |
| 引脚 4 | GND — Ground / reference |
典型应用
MPXC2011DT1 适用于 6 应用s: Medical Spirometry & Ventilator Airflow Sensing, HVAC Variable Air Volume (VAV) Box Control, Industrial Process Low-Pressure Monitoring, Portable Handheld Airflow Meters, Analytical Instrument Front-End (Gas Chromatography / Mass Spectrometry), Environmental & Weather Station Pressure Trend.
Medical Spirometry & Ventilator Airflow Sensing
The MPXC2011DT1's 0-10 kPa differential range is precisely tuned to the pressure drop produced by flow-restriction elements in spirometers, ventilators, and CPAP machines. The 2.5 mV/kPa sensitivity and ratiometric Wheatstone-bridge output pair with an INA128 instrumentation amplifier to deliver calibrated flow-loop readings to the host MCU. Compared with competitive 35 kPa parts, the narrow range gives better resolution for the small kPa-scale signals seen in breathing circuits, and the on-chip temperature compensation over 0-85 °C simplifies FDA submission documentation for medical device designs.
推荐
HVAC Variable Air Volume (VAV) Box Control
In commercial HVAC VAV boxes, the MPXC2011DT1 measures the differential pressure across a flow probe or pitot tube to compute supply-air volume. The 4-SSIP side-port Chip Pak with barbed fitting accepts standard 3.25 mm tubing directly, simplifying duct-tap installation. The 10 kPa span aligns with the 0-1.5 inch water column (0-373 Pa) typical VAV sensor range when scaled through an external instrumentation amplifier, and the 3-10 V excitation lets the part share a 24 V HVAC rail via a simple regulator.
推荐
Industrial Process Low-Pressure Monitoring
The MPXC2011DT1 fits cleanroom and process-control applications requiring sub-psi differential measurement, such as filter-loading detection, vacuum-line monitoring, and laboratory gas-flow verification. The piezoresistive silicon die delivers better long-term stability than ceramic capacitive alternatives in this pressure class, and the calibrated 2.5 mV/kPa output allows direct software conversion without per-unit table lookups. Designers should place a low-pass filter immediately at the amplifier output to suppress HVAC compressor noise picked up by long tubing runs.
推荐
Portable Handheld Airflow Meters
Battery-powered airflow and leak-detection meters benefit from the MPXC2011DT1's low 3 V minimum excitation, which allows direct connection to a lithium-cell or 2xAA boost-converter rail. The 25 mV full-scale output keeps the analog front-end power budget low when paired with a single-supply zero-drift chopper amplifier. Compared with higher-pressure 100 kPa parts that waste dynamic range, the 10 kPa span gives the handheld meter's ADC more codes counts per psi, improving user-visible resolution.
推荐
Analytical Instrument Front-End (Gas Chromatography / Mass Spectrometry)
Analytical instruments such as benchtop gas chromatographs and mass-spectrometer front-ends use the MPXC2011DT1 as a carrier-gas or sample-line pressure monitor before the analytical column. The 0-10 kPa span is well-matched to the low-pressure pneumatics inside the instrument chassis, where higher-pressure parts would saturate. The on-chip calibration reduces instrument-to-instrument variation, supporting calibration-free field service and simplifying the manufacturer's QA flow.
推荐
Environmental & Weather Station Pressure Trend
Although primarily a differential sensor, the MPXC2011DT1 can be used in single-port configuration (one port vented) as a low-cost barometric trend indicator for hobbyist weather stations and indoor air-quality monitors. The 10 kPa span covers a meaningful delta-pressure window for storm-front detection when paired with a logging algorithm. Designers should add a moisture-protection membrane over the unused port and account for the differential offset in software.
推荐
推荐产品汇总
工程参考数据： MPXC2011DT1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MPXC2012DT1 | MPX10DP | MPX12DP | MPXC2011GP | MPX2010DP |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (Freescale legacy) | NXP Semiconductors (Freescale legacy) | NXP Semiconductors | NXP Semiconductors (Freescale legacy) |
| Package | 4-SSIP Chip Pak (side port) | 4-SSIP Chip Pak (side port) - same | 4-SIP Chip Pak (side port) - same family | 4-SIP Chip Pak (side port) - same family | 4-SSIP Chip Pak (straight port) - same body | 4-SIP Chip Pak (side port) - same family |
| Pressure Type | Differential | Differential | Differential | Differential | Differential | Differential |
| Operating Pressure Range | 0 to 10 kPa (1.45 PSI) | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa | 0 to 10 kPa |
| Excitation Voltage Range | 3 V to 10 V DC | 3 V to 10 V DC | 3 V to 6 V DC | 3 V to 6 V DC | 3 V to 10 V DC | 3 V to 10 V DC |
| Temperature Compensation | On-chip calibrated, 0 to 85 °C | On-chip calibrated | On-chip calibrated | On-chip calibrated | On-chip calibrated | On-chip calibrated |
关键差异点
- 10 V excitation rating for highest full-scale output in the MPX10/12/2010 family （对比 MPX10DP / MPX12DP)
- Calibrated sensitivity matches the MPX2010 legacy family （对比 MPX2010DP)
- Side-port barbed inlet for direct tubing connection （对比 MPXC2011GP (straight-port variant))
设计说明
The 25 mV full-scale output sits well below any 12-bit ADC's LSB at 5 V full-scale (1.2 mV), so the sensor must be amplified before digitisation. Use a true instrumentation amplifier topology (e.g., INA128, AD620) with gain of 40-160 placed within 50 mm of the sensor leads. Twisted-pair or shielded twisted-pair cabling from sensor to amplifier rejects common-mode noise from switching power supplies nearby. Apply a first-order low-pass filter at the amplifier output with cutoff of 10-100 Hz to suppress mechanical vibration and HVAC compressor noise picked up by the tubing.
Route the four sensor leads with a small ground plane beneath the Chip Pak to provide mechanical stability and thermal mass. Keep digital traces (MCU, switching regulator) at least 10 mm away from the analog amplifier section to prevent switching-noise coupling. If the design uses both the MPXC2011DT1 and a digital MCU on the same board, split the analog and digital ground planes and join them at a single point near the sensor's GND pin. Decouple the sensor's VCC pin with a 100 nF ceramic capacitor placed as close as possible to the lead.
Estimated: do NOT block the unused port of a differential sensor - both ports must be open to the pressure field, or sealed only with a low-stress moisture-protection membrane. Blocking one port converts the sensor into an absolute reference at the blocked pressure, which is rarely the intended measurement. Also, do not exceed the 10 V excitation maximum - the on-chip compensation network assumes the datasheet-specified excitation range. Finally, do not route the sensor leads near a high-current switching node; the small 25 mV signal is easily swamped by tens of mV of magnetically-coupled switching noise.
合规信息
RoHS, REACH, lead-free, halogen-free, and conflict-mineral status are not explicitly stated in the verified web data for MPXC2011DT1. The original Freescale-era datasheet predates broad RoHS adoption. Verify with NXP or distributor documentation before placing into RoHS-required assembly.
