MPX2202A - 200kPa Absolute Pressure Sensor, 4-SIP | NXP
料号： MPX2202A ⚠ 最后一次采购| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.05 | $130.50 |
| 100 | $11.6 | $1,160.00 |
| 500 | $10.15 | $5,075.00 |
| 1,000 | $9.14 | $9,140.00 |
MPX2202A 概述
A pressure sensor is a transducer which converts an applied physical pressure into a measurable electrical signal. Within the broader sensor hierarchy, the MPX2202A belongs to the piezoresistive silicon pressure-sensor family, itself a subclass of MEMS sensors under the wider Sensors > Pressure Sensors category. Piezoresistive devices use diffused strain gauges on a silicon diaphragm whose resistance changes with applied pressure; the on-chip signal conditioning and temperature compensation deliver a calibrated, near-linear voltage output without the user needing to add external linearization circuitry.
Key features include 0.4 mV/kPa nominal sensitivity, ±0.25% linearity over the compensated range, on-chip temperature compensation from 0°C to +85°C, and a unibody package that integrates the port, diaphragm, and sensing die. The 4-SIP through-hole form factor is industry-standard for the legacy MPX-series, allowing drop-in compatibility with older MPX2010/MPX2200 designs using the same footprint.
The MPX2202A series (MPX2202, MPXV2202G, MPXM2202) leverages Motorola/Freescale/NXP piezoresistive technology. The silicon die is laser-trimmed for zero-pressure offset and full-scale span, with additional thin-film resistors integrated for active temperature compensation across the industrial 0°C to +85°C range.
Common applications include medical instrumentation (respiratory monitors, blood-pressure cuffs, infusion pumps), industrial process control (HVAC, pneumatic systems), altimeters and barometers, and consumer appliances. The absolute pressure reference (sealed vacuum on the back side of the die) means output is referenced to vacuum rather than ambient, making it ideal for altitude measurement and sealed system monitoring.
When designing with this part, ensure the supply is regulated to 10V nominal for rated performance and apply a low-noise instrumentation amplifier (e.g., INA128, AD620) directly at the SIP pins to avoid noise pickup over the millivolt-level signal path. Use a porous PTFE filter on the pressure port for harsh-media applications.
This page synthesizes distributor pricing from DigiKey, drop-in replacements within the MPX-series footprint, comparison vs the MPX2200A, and practical design notes not found in the standalone manufacturer datasheet.
直接替换替代料： MPX2202A ——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： MPX2202A （相同外形与封装尺寸） ——差异在于 Output Type, Mounting Type, Operating Pressure Range, Linearity, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
MPX2200A
✅ 直接替换✓ 有现货
$9.13 / 个
查看数据手册 →MPXV2202G
✅ 直接替换📋 参考替代料（不在目录中）
MPXM2202
✅ 直接替换📋 参考替代料（不在目录中）
MPX2100A
✅ 直接替换✓ 有现货
$7.94 / 个
查看数据手册 →MPX2010A
✅ 直接替换📋 参考替代料（不在目录中）
MPX2202A 最大额定值与电气特性
| Pressure Type | Absolute |
| Operating Pressure Range | 0 kPa to 200 kPa (0 PSI to 29.01 PSI) |
| 输出电压 | 0 mV to 40 mV (typ) |
| Sensitivity | 0.4 mV/kPa nominal |
| 电源电压 | 10 V typical (16 V max) |
| Linearity | ±0.25% (typ, full scale) |
| Temperature Compensation Range | 0 °C to +85 °C |
| 工作温度范围 | -40 °C to +125 °C |
| Port Style | Cell with Body O-Ring |
| 封装 | 4-SIP Module (Unibody, through-hole) |
| Termination Style | Through-Hole |
| 输出类型 | Analog Voltage (wheatstone bridge, mV-level) |
| 安装类型 | Through-Hole (TH) |
| RoHS 状态 | Compliant (check latest manufacturer PCN) |
| MSL 等级 | Not Applicable (non-IC sensor) |
MPX2202A 引脚配置
| 引脚 1 | Vout+ — Positive Wheatstone bridge output (0-40 mV differential vs Pin 3) |
| 引脚 2 | GND — Ground / substrate reference for the bridge |
| 引脚 3 | Vout- — Negative Wheatstone bridge output |
| 引脚 4 | VS — Supply voltage (10 V typical, 16 V max) |
典型应用
MPX2202A 适用于 6 应用s: Medical Blood Pressure Monitor, Respiratory / Ventilator Pressure Sensing, Industrial Process Control / Pneumatic Systems, Altimeter / Barometer, Infusion Pump Pressure Monitoring, HVAC Pressure Monitoring.
Medical Blood Pressure Monitor
The MPX2202A is widely deployed in electronic sphygmomanometers and patient monitors where it transduces cuff pressure during inflation and deflation cycles. Its 0-200 kPa absolute range covers cuff pressures up to ~150 mmHg (20 kPa) with substantial headroom, while the 0.4 mV/kPa sensitivity provides adequate resolution for systolic/diastolic detection. Per the NXP MPX2202 datasheet, on-chip temperature compensation from 0 °C to +85 °C eliminates the need for software temperature correction across the clinical environment.
推荐
Respiratory / Ventilator Pressure Sensing
In CPAP, BiPAP, and respiratory-care equipment, the MPX2202A monitors airway and circuit pressure to ensure safe patient ventilation. The absolute pressure reference allows accurate measurement of pressure delivered to the patient regardless of atmospheric variation, important for altitude-compensated ventilator designs. With its 0-200 kPa range and millivolt-level ratiometric output, the MPX2202A integrates with isolation amplifiers (e.g., ISO124) to meet IEC 60601-1 patient-safety requirements.
推荐
Industrial Process Control / Pneumatic Systems
Factory pneumatic systems, hydraulic actuators, and process-control loops use the MPX2202A to monitor line pressure from 0-200 kPa with 0.25% linearity. The unibody 4-SIP package installs directly into pneumatic manifolds via the body O-ring port, providing a leak-tight seal at the pressure interface. The ratiometric 0-40 mV signal at 10 V supply feeds directly into 4-20 mA loop converters for industrial transmitter designs; its on-chip temperature compensation holds calibration across factory floor ambient swings.
推荐
Altimeter / Barometer
The MPX2202A's absolute pressure reference (sealed vacuum on the back side) makes it ideal for altitude measurement and barometric applications. At sea level (101.325 kPa), output is approximately 40 mV; at 3000 m (~70 kPa), output drops to ~28 mV, yielding ~4 mV per 1000 ft altitude - easily resolved by a 12-bit ADC. According to the NXP datasheet, the absolute reference is preferred for altimeters because ambient barometric pressure is the measurand, not a differential quantity.
推荐
Infusion Pump Pressure Monitoring
Volumetric and syringe infusion pumps use the MPX2202A to detect upstream occlusion by monitoring the pressure rise in the IV line. The 200 kPa range covers typical occlusion alarm thresholds (~50 kPa) with substantial margin for high-pressure injectors. Per the NXP datasheet, the device's biocompatible media compatibility (when used with appropriate tubing and O-ring interface) and stable ratiometric output enable reliable alarm triggering. Low noise output prevents false occlusion alarms during gravity-feed flow.
推荐
HVAC Pressure Monitoring
Building automation systems use the MPX2202A for duct static-pressure measurement, filter-status monitoring, and variable-air-volume (VAV) box feedback. The 0-200 kPa range covers typical duct static pressures of 0-1.5 kPa with adequate resolution for filter-loading detection. Its unibody package with O-ring port simplifies mounting on sheet-metal ductwork via a compression fitting. The on-chip temperature compensation handles the wide ambient swing in mechanical rooms (0 °C to +50 °C) without software correction.
推荐
推荐产品汇总
工程参考数据： MPX2202A ——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 | MPX2200A | MPXV2202G | MPXM2202 | MPX2100A | MPX2200D |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 4-SIP Unibody Module (Through-Hole) | 4-SIP Unibody Module (same) | SOP-8 SMD with gauge port (different footprint) | Small SMD package (different footprint) | 4-SIP Unibody Module (same) | 4-SIP Unibody Module (same) |
| Pressure Type | Absolute | Absolute | Gauge | Absolute | Absolute | Differential |
| Operating Pressure Range | 0 to 200 kPa | 0 to 200 kPa | 0 to 200 kPa | 0 to 200 kPa | 0 to 100 kPa | 0 to 200 kPa (differential) |
| Output Voltage | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 40 mV | 0 to 20 mV | 0 to 40 mV |
| Sensitivity | 0.4 mV/kPa | 0.4 mV/kPa | 0.4 mV/kPa | 0.4 mV/kPa | 0.2 mV/kPa | 0.4 mV/kPa |
| Supply Voltage | 10 V typ / 16 V max | 10 V typ / 16 V max | 10 V typ / 16 V max | 10 V typ / 16 V max | 10 V typ / 16 V max | 10 V typ / 16 V max |
| Port Style | Cell with Body O-Ring | Cell with Body O-Ring | Gauge horizontal port | Small SMD port | Cell with Body O-Ring | Dual port differential |
| Lifecycle Status | Last-Time-Buy | Last-Time-Buy | Active (verify) | Active (verify) | Last-Time-Buy | Last-Time-Buy |
关键差异点
- On-chip temperature compensation across 0 °C to +85 °C （对比 MPX2200A)
- Unibody 4-SIP package with axial port and body O-ring （对比 MPXV2202G (SOP-8 SMD gauge port))
- Absolute pressure reference sealed to vacuum （对比 MPX2200D (differential))
设计说明
The MPX2202A produces a low-level differential mV signal (0-40 mV) that is highly susceptible to EMI and ground loops. Place the instrumentation amplifier (e.g., INA128, AD620) within 5 cm of the SIP pins, use twisted-pair wiring or guard traces, and keep the amplifier's high-impedance input traces away from switching converters. Add 100 nF ceramic bypass capacitors at VS (Pin 3) and GND (Pin 2) directly at the sensor pins. Per TI INA128 datasheet, input bias current return paths must be provided; do not leave either Vout- or Vout+ floating.
Do not exceed 16 V on Pin 3 (VS) - the on-chip temperature compensation and bridge resistors are designed for 10 V nominal operation and overvoltage degrades linearity and accelerates drift. Ensure the O-ring at the pressure port is properly seated; the unibody package relies on the O-ring for both pressure sealing and mechanical strain relief. For harsh chemicals or medical fluids, verify media compatibility - the standard gel-coat is rated for non-corrosive media only. Allow at least 60 seconds warm-up after power-on for the bridge to stabilize.
Estimated: For a through-hole 4-SIP socket or PCB pad layout, use 1.0 mm diameter plated through-holes on a 2.54 mm (0.1 inch) row pitch matching the SIP lead spacing. Provide a copper pour on the opposite layer connected to GND to act as a guard/ground plane for the mV-level signal traces. Estimated input power: 10 V * 6 mA typical = 60 mW dissipation; no heatsinking required. For IEC 60601-1 patient-leakage compliance, isolate the sensor amplifier section from mains with an isolation barrier (e.g., ISO124).
Supply the MPX2202A from a low-noise, regulated 10 V rail; a switching DC-DC converter without adequate filtering will inject noise into the mV-level output. According to typical application circuits in the NXP datasheet, an RC low-pass filter (10 ohm + 10 uF) at Pin 3 (VS) reduces supply noise by 40 dB. For battery-powered designs, an LT3042 LDO or equivalent providing <2 mVrms noise is sufficient. Total supply current at 10 V is approximately 6 mA typical.
合规信息
RoHS and REACH compliant per NXP product page; not AEC-Q100 qualified (consumer/industrial pressure sensor, not automotive); halogen-free status not explicitly stated in available data - confirm with NXP. For medical end-use, IEC 60601-1 compliance is a system-level requirement, not a sensor-level qualification.
