MPX53GP - 50 kPa Uncompensated Gauge Pressure Sensor | NXP
Référence : MPX53GP ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.45 | $7,45 |
| 10 | $6.75 | $67,50 |
| 100 | $6.55 | $655,00 |
| 500 | $6.1 | $3 050,00 |
| 1 000 | $6.5 | $6 500,00 |
MPX53GP Présentation
A piezoresistive pressure sensor is a MEMS device in which a silicon diaphragm with embedded Wheatstone-bridge resistors deflects under pressure, unbalancing the bridge and producing a millivolt-level differential output. As an uncompensated sensor, it sits in the same broad hierarchy as compensated pressure sensors, altimeters, and barometric ICs; users must add their own external temperature-compensation and signal-conditioning networks to achieve the accuracy levels required for their end system.
Key features include a ±0.6% to ±0.4% accuracy window, a vented-gauge reference for direct absolute-pressure readout in barometric systems, a 4.93 mm barbed male port for flexible-tube pneumatic interfaces, and the wide 0 to 175 kPa proof-pressure range that protects against pressure spikes in fluid and pneumatic systems. The 4-SIP vertical package enables simple through-hole PCB assembly and easy integration into a system front-end alongside an instrumentation amplifier.
Typical applications include medical respiratory monitors (ventilators, CPAP, spirometers), industrial pneumatic controllers, HVAC pressure monitors, altimeters and barometric instruments, and consumer weather stations, where the uncompensated wheatstone-bridge output stage feeds directly into a low-noise op-amp such as an MCP6001 or instrumentation amplifier.
When designing with the MPX53GP, the engineer must add an external instrumentation amplifier and temperature-compensation network; the bare 60 mV full-scale output at 3 V is too small and too temperature-dependent for direct ADC input. Use the front-end reference voltages and supply decoupling shown in the manufacturer application note for repeatable thermal drift performance.
This page consolidates distributor pricing, drop-in pin-compatible alternatives, and practical design guidance not found in the bare manufacturer datasheet, accelerating MPX53GP selection for new designs.
Alternatives de remplacement direct pour MPX53GP — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MPX53GP (même facteur de forme et même empreinte) — différant par Operating Pressure Range, Output Type, Supply Voltage, Package, Port Size.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MPX53DP
✅ Remplacement direct✓ En stock
$7.48 / unité
Voir la fiche technique →MPXV53GC
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MPX53GP
✅ Remplacement direct✓ En stock
$6.1 / unité
Voir la fiche technique →MPX53
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MPX2010GP
✅ Remplacement direct✓ En stock
$7.2 / unité
Voir la fiche technique →MPX53GP Valeurs maximales et caractéristiques électriques
| Pressure Type | Vented Gauge |
| Operating Pressure Range | 0 kPa to 50 kPa (0 to 7.25 PSI) |
| Maximum Overpressure | 175 kPa (25.38 PSI) |
| Type de sortie | Wheatstone Bridge (analog voltage) |
| Full-Scale Output | 60 mV at 3 V supply |
| Tension d'alimentation | 3 V typical |
| Accuracy | -0.6% to +0.4% |
| Port Size | Male - 0.19 inch (4.93 mm) barbed tube |
| Port Style | Barbed |
| Termination Style | PCB (Through-Hole) |
| Boîtier / Format | 4-SIP Module |
| Output Range | 20 mV to 80 mV (manufacturer sensitivity window) |
| Mounting Feature | Through-Hole Mount |
| Package Shape | Circular |
Configuration des broches de MPX53GP
| Broche 1 | Vout+ — Positive bridge output (top of Wheatstone bridge) |
| Broche 2 | GND — Common ground / bottom of bridge |
| Broche 3 | Vout- — Negative bridge output (bottom of bridge) |
| Broche 4 | Vs — Supply voltage (3 V typical) |
Applications typiques
MPX53GP convient pour 6 applications: Medical Respiratory Monitors, Industrial Pneumatic Controllers, HVAC and Building Pressure Monitors, Altimeters and Barometric Instruments, Consumer Weather Stations, Appliance Vacuum and Filter Monitoring.
Medical Respiratory Monitors
The MPX53GP suits ventilator, CPAP, and spirometer front-ends because its 0 to 50 kPa operating range matches the airway-pressure span used in adult and pediatric respiratory circuits. Its 60 mV full-scale output at 3 V combines with a low-noise instrumentation amplifier (such as the MCP6S21 or INA128) to deliver the linearity and stability required for breath-detection algorithms. Uncompensated output lets medical designers apply their own IEC 60601-compliant temperature compensation rather than depend on factory calibration.
Recommandé
Industrial Pneumatic Controllers
In industrial pneumatic pressure controllers and valve-actuator feedback loops, the MPX53GP delivers the 0 to 50 kPa range typical of low-pressure air-supply systems. Its 175 kPa maximum overpressure rating tolerates pressure spikes during valve cycling, reducing field failures from pressure surges in shop-air lines. The 4.93 mm barbed tube port accepts standard pneumatic tubing for fast panel-mount assembly, and the 4-SIP vertical package fits inside DIN-rail enclosures alongside a microcontroller ADC input stage.
Recommandé
HVAC and Building Pressure Monitors
Building-automation HVAC systems rely on the MPX53GP for duct static-pressure and room-airflow sensing. The vented-gauge reference matches the standard practice of expressing HVAC pressure relative to atmospheric, simplifying the display readouts. Its low 3 V supply current draws negligible power from battery-backed 24 V HVAC controls when paired with a small LDO regulator, while the vertical 4-SIP package drops directly onto the controller PCB footprint used in legacy Freescale designs.
Recommandé
Altimeters and Barometric Instruments
Handheld altimeters and weather-station barometers use the MPX53GP because its vented-gauge reference reads pressure relative to ambient altitude-corrected atmospheric pressure. With 50 kPa full scale, the device resolves altitude changes of about 1 m near sea level when paired with a 16-bit ADC, sufficient for hiking and weather-prediction applications. The uncompensated output is fine because outdoor temperature ranges are typically narrow and user-calibration is acceptable in consumer-grade instruments.
Recommandé
Consumer Weather Stations
Consumer desktop and DIY weather stations often use the MPX53GP to measure local barometric pressure and feed an MCU that performs pressure-trend analysis. The 0 to 50 kPa range covers every weather-relevant pressure from storm lows to fair-weather highs at almost any terrestrial location, while the 4-SIP package simplifies hand-soldering for hobbyist kits. Accuracy is more than enough for trend display (-0.6% to +0.4%) when paired with simple software-based temperature compensation running on the host microcontroller.
Recommandé
Appliance Vacuum and Filter Monitoring
Vacuum cleaners, coffee machines, and water-purification appliances use the MPX53GP to detect filter clogging by sensing the pressure differential across the filter element. The 50 kPa operating range covers residential vacuum suction (10 to 30 kPa typical) with margin to spare, while the 4.93 mm barbed tube port accepts the small-bore tubing used inside these appliances. The compact 4-SIP vertical package drops into tight enclosures and the uncompensated output leaves cost and PCB area free for application-specific signal conditioning.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MPX53GP — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MPX53DP | MPXV53GC | MPX53 | MPX2010GP |
|---|---|---|---|---|---|
| Package | 4-SIP Module | 4-SIP Module - same | 4-SIP Module - same | 4-SIP Module - same | 4-SIP Module - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pressure Type | Vented Gauge | Differential | Gauge | Gauge / Differential options | Gauge |
| Operating Pressure Range | 0 to 50 kPa (7.25 PSI) | 0 to 50 kPa (7.25 PSI) | 0 to 50 kPa (7.25 PSI) | 0 to 50 kPa (7.25 PSI) | 0 to 100 kPa (14.5 PSI) |
| Maximum Overpressure | 175 kPa (25.38 PSI) | 175 kPa (25.38 PSI) | 175 kPa (25.38 PSI) | 175 kPa (25.38 PSI) | 400 kPa (58 PSI) |
| Output Range (Full Scale) | 0 to 60 mV at 3 V | 0 to 60 mV at 3 V | 0 to 60 mV at 3 V | 0 to 60 mV at 3 V | 0 to 40 mV at 10 V |
| Supply Voltage | 3 V typical | 3 V typical | 3 V typical | 3 V typical | 10 V typical |
| Output Type | Wheatstone Bridge (uncompensated) | Wheatstone Bridge (uncompensated) | Wheatstone Bridge (uncompensated) | Wheatstone Bridge (uncompensated) | Wheatstone Bridge (uncompensated) |
| Port Style | Barbed tube, vented-gauge | Dual barbed, differential | Barbed tube, gauge | Family-dependent (gauge / differential / absolute) | Barbed tube, gauge |
Principaux différenciateurs
- Vented-gauge reference for direct barometric readout (vs MPX53DP)
- Compact 4-SIP vertical package with barbed tube port (vs MPX2010GP)
- Uncompensated output for designer-controlled conditioning (vs MPX2100AP)
Notes de conception
The MPX53GP wheatstone-bridge output is 60 mV full-scale at 3 V, so the differential signal at the amplifier input is roughly 1.2 mV per kPa of applied pressure. Use a true instrumentation amplifier (not a single-ended op-amp) to reject common-mode noise from the 3 V supply rail; the MCP6S21 or INA128 family is appropriate. Place the amplifier within 50 mm of the sensor pins to keep PCB-track impedance low and avoid picking up 50/60 Hz mains interference on the long twisted-pair run from the tube-port end.
Power the MPX53GP from a low-noise 3.0 V LDO regulator (such as MCP1700) rather than the MCU supply rail, because the sensor's common-mode voltage is ratiometric to its own supply and any supply ripple couples directly into the bridge output. Decouple the sensor supply pin with a 100 nF ceramic in parallel with a 10 uF bulk cap placed within 5 mm of the pin. Estimated: input supply current is below 10 mA so the LDO can be a low-quiescent type to preserve battery life in portable applications.
Estimated: the uncompensated silicon bridge produces roughly 1 to 2 percent FS drift across the 0 to 85 C commercial range; in medical and HVAC applications where accuracy matters, add an external temperature sensor (such as the MCP9700) adjacent to the MPX53GP and apply a software compensation polynomial in the host MCU. Keep the sensor away from board heat sources such as regulators, power MOSFETs, and LED backlights, since thermal gradients across the package introduce offset shift that is hard to calibrate out in software.
Do not route the tube port against a PCB edge or in a fluid-restricted path without an internal screen, because debris migration into the sensor will permanently damage the diaphragm. Also avoid sealing the vent side of the package (the back of the device) since it is the gauge reference; conformal coating the rear of the package will block the vent and produce non-linear output. The vent channel is typically marked on the datasheet mechanical drawing and should be left clear of obstruction.
Informations de conformité
RoHS status not available in verified web data; MPX53 family parts are generally lead-free in current production but compliance must be confirmed with the manufacturer for the specific lot date code. AEC-Q100 not applicable - this is a sensor, not an automotive-grade IC. All compliance fields marked unknown pending datasheet verification.