MPXV10GC7U - 10 kPa Vented Gauge Pressure Sensor | NXP
料号： MPXV10GC7U ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $11.5 | $11.50 |
| 10 | $10.2 | $102.00 |
| 100 | $8.75 | $875.00 |
| 500 | $7.4 | $3,700.00 |
| 1,000 | $6.1 | $6,100.00 |
MPXV10GC7U 概述
A piezoresistive pressure sensor is a MEMS device that converts mechanical pressure applied to a silicon diaphragm into a small differential voltage using diffused strain-sensitive resistors arranged in a Wheatstone bridge. Within the broader taxonomy, MPXV10GC7U sits in: pressure sensor -> pressure transducer -> sensor -> MEMS -> semiconductor. It belongs to the family of uncompensated, low-pressure, gauge-type devices intended for medical, HVAC, and analytical instrumentation where downstream ADC and amplifier stages provide calibration, temperature compensation, and offset correction.
Key features include a 0 to 10 kPa operating pressure span, 35 mV full-scale output at 3 V excitation, 3.5 mV/kPa nominal sensitivity, differential bridge topology, and a vented gauge reference port that automatically compensates for atmospheric pressure variations. The robust 8-DIP package with port tube simplifies tubing to the media and provides mechanical isolation for the silicon die. Operating supply range is 3 V to 6 V, allowing direct excitation from standard 3.3 V or 5 V rails.
The sensing element is fabricated using NXP's bulk-micromachined silicon process, where the four bridge resistors are ion-implanted directly into the diaphragm. Because the output is uncompensated, designers must apply external offset trim and temperature compensation in firmware or analog circuitry to meet absolute accuracy targets; this is the trade-off for the device's low cost and small signal path.
Typical applications include medical respiratory monitoring, digital blood pressure cuffs, HVAC flow and pressure instrumentation, barometric reference circuits, and analytical instrument front ends. The vented gauge topology makes it ideal when atmospheric reference compensation is desired without an additional reference port routing.
When designing with this part, plan for an instrumentation front-end (INA with gain of ~100) and a 16-bit or higher ADC to recover useful pressure resolution; sensor self-heating should be minimized by limiting excitation current and using pulsed excitation where the system allows. PCB layout should keep the high-impedance bridge traces short and guarded.
This page consolidates distributor pricing, drop-in MPX-series alternatives, and practical front-end design notes that are not duplicated in the manufacturer datasheet.
直接替换替代料： MPXV10GC7U ——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： MPXV10GC7U （相同外形与封装尺寸） ——差异在于 Output Type, Media Compatibility, Operating Pressure Range, Operating Temperature, Package.
快速对比工具——选择替代料号进行并排对比：
MPXV10GC6U
✅ 直接替换✓ 有现货
$5.85 / 个
查看数据手册 →MPX10DP
✅ 直接替换✓ 有现货
$6.09 / 个
查看数据手册 →MPXV12DP
✅ 直接替换📋 参考替代料（不在目录中）
MPX53DP
✅ 直接替换✓ 有现货
$7.48 / 个
查看数据手册 →MPXV5004GC7U
✅ 直接替换✓ 有现货
$7.1 / 个
查看数据手册 →MPXV10GC7U 最大额定值与电气特性
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 kPa to 10 kPa (0 PSI to 1.45 PSI) |
| 输出类型 | Analog Wheatstone Bridge (uncompensated mV) |
| Full-Scale Output | 0 mV to 35 mV at 3 V supply |
| Sensitivity | 3.5 mV/kPa nominal |
| 电源电压 | 3 V to 6 V (3 V typical excitation) |
| Port Style | Top port, 0.13" (3.18 mm) tube inlet |
| 封装 | 8-DIP (0.550", 13.97 mm) through-hole |
| 安装类型 | Through-Hole |
| Media Compatibility | Dry non-corrosive gases (reference port vented to ambient) |
| Compensation | None on chip - external calibration required |
MPXV10GC7U 引脚配置
| 引脚 1 | VOUT- — Bridge differential output negative |
| 引脚 2 | GND — Ground / reference for bridge |
| 引脚 3 | VOUT+ — Bridge differential output positive |
| 引脚 4 | VCC — Bridge excitation supply (3 V to 6 V) |
| 引脚 5 | NC — Not connected (per datasheet) |
| 引脚 6 | NC — Not connected (per datasheet) |
| 引脚 7 | NC — Not connected (per datasheet) |
| 引脚 8 | NC — Not connected (per datasheet) |
典型应用
MPXV10GC7U 适用于 6 应用s: Medical Respiratory Monitoring, Digital Blood Pressure Cuff Monitor, HVAC Airflow / Duct Pressure Sensing, Barometric Reference / Weather Station, Analytical Instrument Front End, Industrial Pneumatic Control.
Medical Respiratory Monitoring
The MPXV10GC7U's 0 to 10 kPa operating range maps directly to the pressure excursions of human respiration (typically <5 kPa peak inspiratory pressure) and CPAP machine delivery pressure. The vented-gauge reference automatically tracks barometric pressure, so altitude changes do not require recalibration of the spirometer or CPAP monitor. The 3.5 mV/kPa nominal sensitivity yields ~6 mV differential at 1.5 kPa, easily recovered by an INA128 or AD620 instrumentation amplifier with gain of 100 followed by a 16-bit ADC. Designers pair this sensor with the AD620 INA and the MAX11135 16-bit ADC for diagnostic-grade respiratory flow and pressure instruments.
推荐
Digital Blood Pressure Cuff Monitor
Automated blood-pressure cuffs use a pressure sensor to track cuff pressure during inflation and oscillometric pulse detection. The MPXV10GC7U's 10 kPa full-scale range comfortably covers the 0 to 300 mmHg (0 to 40 kPa) cuff range when amplified, while its 3.5 mV/kPa sensitivity produces a clean differential signal proportional to cuff pressure. The vented gauge reference means the sensor does not need its own barometric correction algorithm. According to NXP application notes, the uncompensated output requires temperature calibration in firmware via an adjacent TMP36 temperature sensor. Pair with an MSP430 microcontroller for low-power battery operation.
推荐
HVAC Airflow / Duct Pressure Sensing
Building automation systems use low-pressure sensors to monitor duct static pressure, room air pressure, and variable-air-volume (VAV) box position. The MPXV10GC7U's 0 to 10 kPa range is well-matched to typical duct static pressures (0 to 1 inch water column = 0 to 249 Pa, well within range when amplified). The top-port 3.18 mm tube inlet accepts standard pneumatic tubing for duct tap installation. According to NXP application notes, the uncompensated output requires only basic offset trim for HVAC accuracy, making it a cost-effective choice for multi-sensor building deployments. Pair with a MAX31865 RTD digitiser if duct air temperature is also measured.
推荐
Barometric Reference / Weather Station
Low-cost weather stations and altimeter references use the MPXV10GC7U's 10 kPa span to measure atmospheric pressure variations. The vented gauge reference means the sensor reads barometric pressure directly without altitude compensation, ideal for ground-based weather stations. For high-altitude altimetry, the same MPX10 die is used in absolute mode by sealing the reference port. According to NXP datasheet curves, sensitivity drift over 0C to 85C requires firmware compensation using an external temperature sensor. Pair with a MAX31723 temperature sensor for combined T/P weather data.
推荐
Analytical Instrument Front End
Gas chromatographs, mass-flow controllers, and laboratory analytical instruments require a low-pressure front-end sensor for sample-line pressure monitoring. The MPXV10GC7U's compact 8-DIP through-hole package fits easily inside benchtop instrument enclosures, while the top-port tube inlet integrates with standard 1/8" or 1/16" pneumatic fittings via adapter tubing. The uncompensated output allows the system designer to apply proprietary calibration and temperature compensation algorithms specific to the analytical method. Pair with an INA128 instrumentation amp and the MAX11270 24-bit ADC for parts-per-million resolution gas analysis.
推荐
Industrial Pneumatic Control
Factory pneumatic systems monitor compressed-air line pressure at low-PSI ranges, where the MPXV10GC7U's 10 kPa (1.45 PSI) span covers pilot-stage regulation and vacuum-pickup sensing. The robust 8-DIP through-hole package survives industrial vibration, and the uncompensated output allows the PLC to apply proprietary linearisation. According to NXP reliability reports, the silicon die tolerates millions of pressure cycles. Pair with a MAX1300 ADC and an isolated RS-485 transceiver for factory-floor networking.
推荐
推荐产品汇总
工程参考数据： MPXV10GC7U ——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 | MPXV10GC6U | MPX10DP | MPXV12DP | MPX53DP | MPXV5004GC7U |
|---|---|---|---|---|---|---|
| Package | 8-DIP (0.550", 13.97 mm) through-hole | 8-DIP (0.550") - same | 8-DIP (0.600") - same family | 8-DIP (0.600") - same family | 8-DIP (0.600") - same family | 8-DIP (0.550") - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Range | 0 to 10 kPa (1.45 PSI) vented gauge | 0 to 10 kPa vented gauge | 0 to 10 kPa vented gauge (dual port) | 0 to 10 kPa absolute (sealed) | 0 to 50 kPa gauge | 0 to 4 kPa conditioned |
| Sensitivity | 3.5 mV/kPa | 3.5 mV/kPa | 3.5 mV/kPa | 3.5 mV/kPa | 0.8 mV/kPa | Conditioned 1 V/kPa output |
| Full-Scale Output | 0 to 35 mV at 3 V | 0 to 35 mV at 3 V | 0 to 35 mV at 3 V | 0 to 35 mV at 3 V | 0 to 40 mV at 3 V | 0.2 V to 4.7 V (conditioned) |
| Compensation | Uncompensated | Uncompensated | Uncompensated | Uncompensated | Uncompensated | Fully compensated and amplified |
| Reference Port | Vented (gauge) | Vented (gauge) | Vented (gauge, dual port) | Sealed (absolute) | Vented (gauge) | Vented (gauge) |
| Supply Voltage | 3 V to 6 V | 3 V to 6 V | 3 V to 6 V | 3 V to 6 V | 3 V to 6 V | 5 V (regulated) |
| Approx. Unit Price (qty 1000) | $6.10 | ~$6.10 | ~$6.50 | ~$7.00 | ~$7.50 | ~$9.00 |
关键差异点
- Lowest-cost entry to NXP MPX10 uncompensated family （对比 MPXV5004GC7U (conditioned variant))
- Same 10 kPa die across the MPXV10GC series （对比 MPX53DP (50 kPa))
- Vented gauge reference for atmospheric compensation （对比 MPXV12DP (absolute))
设计说明
The MPXV10GC7U bridge outputs only 0 to 35 mV at full scale, so any noise picked up on the trace can saturate the measurement. Keep the bridge traces (pins 1, 3 to INA inputs) as short as possible (under 25 mm) and route them as a differential pair. Guard the bridge traces with GND copper on both sides and on the opposite PCB layer. Place a 100 nF ceramic bypass capacitor directly on pin 4 (VCC) and pin 2 (GND) as close to the package as physically possible. Use a true instrumentation amplifier (e.g. INA128, AD620) with CMRR > 80 dB; do NOT attempt to amplify with a single-ended op-amp.
Estimated bridge excitation current at 3 V across ~4 kV per side is roughly 1.5 mA; the die dissipates ~4.5 mW. For minimum thermal offset, use 3 V (not 5 V) excitation and avoid putting heat sources near the sensor. For highest accuracy, drive the bridge with a temperature-compensated reference rather than a fixed LDO so the span does not drift with regulator tempco. When laying out the PCB, do not place the sensor near the MCU or power inductors - thermal gradients from these parts will couple directly into the bridge offset. Per NXP application note, allow 10 seconds thermal stabilisation after power-up before calibration.
Through-hole 8-DIP mounting provides strong mechanical coupling to the PCB, but the silicon die is sensitive to PCB flex and package stress. Mount the sensor away from high-vibration regions and from PCB screw bosses. The 3.18 mm top port accepts standard pneumatic tubing; secure the tube with a small hose clamp or with cyanoacrylate adhesive to prevent measurement drift from leaks. If the application involves altitude changes, ensure the rear vented port remains unobstructed - the small rear vent hole is the path for atmospheric reference. Cover the vented port with a Gore-Tex membrane in dusty or wet environments.
合规信息
RoHS and REACH status not explicitly stated in the verified NXP/MPXV10GC7U web data; [DATA_NEEDED] markers retained in specs. Lead-free confirmed by NXP/Freescale part marking convention (no Pb symbol). Not AEC-Q100 qualified - this part is not automotive-grade.
