MPX5700AS - 700kPa Absolute Pressure Sensor, 6-SIP Module | NXP Semiconductors
N.º de pieza: MPX5700AS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $16.5 | $16,50 |
| 10 | $15.3 | $153,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $12.4 | $6.200,00 |
| 1.000 | $11.05 | $11.050,00 |
MPX5700AS Descripción general
What is an absolute pressure sensor? An absolute pressure sensor measures pressure relative to a sealed reference vacuum (zero absolute reference), making it ideal for applications where barometric or sealed-system pressure must be quantified. Within the sensor taxonomy (absolute pressure sensor > pressure sensor > transducer > sensor), the MPX5700AS belongs to the integrated piezoresistive category that delivers a calibrated, linearized analog voltage directly readable by an MCU ADC, eliminating discrete analog front-end circuitry.
Key features include 0.2 V to 4.7 V output over the specified 15 kPa to 700 kPa range, temperature compensation from 0 °C to +85 °C, and ±2.5% full-scale accuracy across the compensated temperature range. The transducer combines micromachined silicon with thin-film metallization and bipolar signal processing, yielding a single-element device with ratiometric output proportional to the supply voltage and integral EMC/RFI protection for harsh environments.
Technically, the die uses a monolithic piezoresistive bridge whose resistance varies with applied pressure; the on-chip ASIC amplifies, conditions, and temperature-compensates the bridge output. The 4.0 V to 5.25 V supply range and very low 6 mA typical current draw make it a drop-in choice for 5 V industrial and automotive sensor platforms with MCU-based acquisition.
Typical applications include barometric sensing for weather stations and altimeters, manifold absolute pressure (MAP) sensing in engine control units, industrial process control, HVAC pressure monitoring, and consumer white-goods pressure measurement where an MCU analog input requires a calibrated absolute-pressure analog signal.
When designing with this part, decouple VCC with a 100 nF ceramic capacitor placed within 5 mm of the supply pin; add a series resistor on the output if the harness length exceeds 30 cm to limit EMI-induced offset error; and avoid constricting the pneumatic port to maintain specified response time.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet to support rapid PCB-level design decisions.
Alternativas directas para MPX5700AS — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MPX5700AS (mismo factor de forma y huella) — difiere en Mounting Type, Output Type, Supply Voltage, Operating Pressure Range, Accuracy.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MPX5700AP
✅ Sustitución directa✓ En stock
$12.03 / unidad
Ver hoja de datos →MPX5700A
✅ Sustitución directa✓ En stock
$10.95 / unidad
Ver hoja de datos →MPX5700ASX
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPX5700DP
✅ Sustitución directa✓ En stock
$9.2 / unidad
Ver hoja de datos →MPX5700ASX
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPX5700AS Valores máximos y características eléctricas
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 700 kPa (2.18 PSI to 101.53 PSI) |
| Tipo de salida | Analog ratiometric voltage |
| Rango de tensión de salida | 0.2 V to 4.7 V |
| Tensión de alimentación | 4.75 V to 5.25 V |
| Corriente de alimentación | 6 mA (typical) |
| Sensitivity | 6.4 mV/kPa (nominal) |
| Accuracy | ±2.5% Full-Scale Span (over compensated temp range) |
| Rango de temperatura de funcionamiento | 0 °C to +85 °C (compensated) |
| Pressure Port | Male 0.19" (4.93 mm) Tube |
| Encapsulado | 6-SIP Module (Case 867E-03) |
| Tipo de montaje | Through-Hole / Vertical Module |
| Port Type | Absolute (sealed reference vacuum) |
| Estado RoHS | Compliant |
| AEC-Q100 Qualified | Yes (Automotive Grade per datasheets.com listing) |
Configuración de pines de MPX5700AS
| Pin 1 | Vout — Ratiometric analog output voltage |
| Pin 2 | GND — Ground |
| Pin 3 | VCC — 5 V supply input |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
Aplicaciones típicas
MPX5700AS es adecuado para 6 aplicacións: Engine MAP (Manifold Absolute Pressure) Sensing, Barometric Altimeter and Weather Station, Industrial Process Pressure Monitoring, Consumer White-Goods Pressure Sensing, HVAC Duct Static Pressure Monitoring, Medical Respiratory / CPAP Pressure Sensing.
Engine MAP (Manifold Absolute Pressure) Sensing
The MPX5700AS is specified for automotive MAP sensing because its 15 to 700 kPa absolute range covers idle (~30 kPa manifold absolute) through wide-open-throttle (~100 kPa) operating points with comfortable margin. The ratiometric 0.2 V to 4.7 V output feeds a 5 V MCU ADC with minimal external conditioning, and AEC-Q100 qualification allows direct use under-hood. Compared with ratiometric alternatives, the on-chip temperature compensation removes the host firmware lookup table and the 6 mA supply current is negligible relative to ECU budgets. Place the sensor port after the throttle body and add a small reference-orifice dampening loop to attenuate pulsations.
Recomendado
Barometric Altimeter and Weather Station
The 15 to 700 kPa absolute range aligns precisely with atmospheric pressure (~101 kPa at sea level dropping to ~30 kPa at 30 km altitude), making the MPX5700AS a strong fit for portable weather stations and altimeters. The 0.2-4.7 V ratiometric output enables sub-hPa resolution when read by a 12-bit ADC oversampled to 16 bits in firmware. Designers should expose the 0.19" port to static air (not wind-blown) to avoid dynamic-pressure errors, and a simple moisture barrier membrane prevents humidity-induced drift in outdoor deployments.
Recomendado
Industrial Process Pressure Monitoring
In pneumatic panels and process lines up to 7 bar absolute, the MPX5700AS provides a calibrated, temperature-compensated analog signal directly to PLC analog inputs or MCU ADCs. The 6-SIP module with integral 0.19" tube port simplifies pneumatic integration via a hose barb, while the ratiometric architecture rejects 24 V PLC supply noise. The 6 mA draw is compatible with loop-powered instrumentation when fronted by a precision 5 V regulator. Avoid using the AS in a sealed vibration environment without a snubber - die stress from rigid hose coupling can shift the offset.
Recomendado
Consumer White-Goods Pressure Sensing
The MPX5700AS supports laundry water-level and dishwasher pressure-sensing applications where 5 V supply, an integrated port, and ratiometric ADC-friendly output reduce BOM cost. The AEC-Q100 qualified die survives the humid, warm environment inside washers/dryers without corrosion protection beyond conformal coating. A typical implementation reads the pressure via a waterproofed port on the sump or tub. Compared with discrete strain-gauge bridges, the integrated MPX5700AS removes 4 op-amps and an instrumentation reference, simplifying the PCB dramatically.
Recomendado
HVAC Duct Static Pressure Monitoring
The 15 to 700 kPa absolute span, 4.75 to 5.25 V supply, and integrated port make the MPX5700AS a drop-in choice for HVAC duct static-pressure monitoring, especially in commercial air-handlers where barometric drift across the building is meaningful. The 6 mA draw allows many sensors on a single 5 V supply. Use the ratiometric transfer function in firmware to remove supply-voltage variation; for sub-Pa resolution, average many ADC samples in software. Do not use silicon-gel potting over the 0.19" tube, as it starves the sensor of pressure.
Recomendado
Medical Respiratory / CPAP Pressure Sensing
The MPX5700AS covers the pressure range of CPAP machines (typically 4 to 25 cmH2O = 0.4 to 2.5 kPa absolute above ambient) and bench-top spirometers when referenced against ambient. Its integrated temperature compensation removes the warm-up drift that would otherwise require calibration on every CPAP startup. Designers should include a hydrophobic membrane (e.g., Gore-Tex) on the pressure port to prevent contamination from humidified patient air, and pair the sensor with a 24-bit sigma-delta ADC for the small differential pressure signal over the absolute baseline.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MPX5700AS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MPX5700AP | MPX5700A | MPX5700ASX (NXP) | MPX5700DP | MPX5700ASX (ST) |
|---|---|---|---|---|---|---|
| Package | 6-SIP (Case 867E-03) | 6-SIP (Case 867E-03) - same | 6-SIP (Case 867E-03) - same | 6-SIP (Case 867E-03) - same | 6-SIP (Case 867E-03) - same | 6-SIP (Case 867E-03) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | STMicroelectronics |
| Pressure Type | Absolute | Absolute | Absolute | Absolute | Differential (dual port) | Absolute |
| Operating Pressure Range | 15 kPa to 700 kPa | 15 kPa to 700 kPa | 15 kPa to 700 kPa | 15 kPa to 700 kPa | 0 kPa to 700 kPa (differential) | 15 kPa to 700 kPa |
| Output Voltage Range | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Sensitivity | 6.4 mV/kPa (nominal) | 6.4 mV/kPa | 6.4 mV/kPa | 6.4 mV/kPa | 6.4 mV/kPa | 6.4 mV/kPa |
| Supply Current (typ) | 6 mA | 6 mA | 6 mA | 6 mA | 6 mA | 6 mA |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
Diferenciadores clave
- NXP MPX5700 family drop-in compatibility (frente a MPX5700AP)
- Second-source availability from STMicroelectronics (frente a MPX5700ASX (ST))
- AEC-Q100 qualified automotive grade (frente a MPX5700DP (differential))
Notas de diseño
Decouple VCC (pin 3) with a 100 nF X7R ceramic capacitor placed within 5 mm of the supply pin. Add a bulk 10 uF aluminum or tantalum within 25 mm to absorb motor or relay inrush. A precision 5 V LDO (e.g., TLV1117-50) is recommended over a 7805; the ratiometric output requires Vs accuracy to hold datasheet accuracy. Drive only the MPX5700AS from the 5 V rail; do not share analog 5 V with motors or PWM loads.
Keep digital traces away from the SIP module body to avoid coupling switching noise into the analog output. Place a 1 kohm series resistor at the Vout pin if the cable or harness to the host ADC exceeds 30 cm, to isolate capacitive loading and to suppress RFI per IEC 61000-4-3. Provide a clear, unobstructed air path to the 0.19" tube port; do not bend or strain the pneumatic tubing during assembly.
Do not apply vacuum from the high side of the SIP module - the MPX5700AS measures absolute pressure referenced to a sealed vacuum on the back side of the die, so any port pressure below 15 kPa leaves the linear operating range. Do not connect the pressure port to a sealed liquid-filled manifold - liquid incompressibility can over-range the die. Use a hydrogel-free low-impedance pneumatic interface, and verify the host supply voltage BEFORE each factory calibration because the ratiometric transfer function depends on Vs.
Información de cumplimiento
AEC-Q100 qualified automotive grade per datasheets.com listing. RoHS compliant and lead-free per NXP product page. Halogen-free status not explicitly stated in retrieved data - marked unknown.
