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MPX2102GP - 100kPa Vented Gauge Pressure Sensor | NXP
The NXP MPX2102GP is a 100 kPa (14.5 PSI) on-chip temperature compensated silicon piezoresistive pressure sensor housed in a 4-SIP Module (Unibody GP package) with a 0.19" (4.93 mm) pressure port. It provides a linear, accurate voltage output of 0 mV to 40 mV at 10 V excitation directly proportional to applied pressure, with vented gauge configuration for absolute atmospheric reference. A piezoresistive pressure sensor is a MEMS device in which strain gauges integrated on a silicon diaphragm change resistance when pressure deflects the membrane. The sensor therefore sits within the broader hierarchy: pressure sensor -> pressure transducer -> sensor IC -> semiconductor, and is commonly used wherever a microcontroller or ADC must read a physical pressure value as an analog voltage. The MPX2102 series adds on-chip thin-film resistor networks that are laser-trimmed for gain and offset calibration and temperature compensated across the 0 C to +85 C range, removing most of the external compensation that earlier raw bridge sensors required. Key features include a 0 to 100 kPa (0 to 14.5 PSI) operating range, full-scale output of 40 mV at 10 V supply, sensitivity of approximately 0.4 mV/kPa, differential vented-gauge topology, 1.0 % maximum linearity, and integrated temperature compensation from 0 C to +85 C. The unibody package provides a single-piece stress-isolated silicon die, eliminating plastic-to-silicon thermal mismatch and improving long-term drift compared with epoxy-mounted designs. The architecture uses a single monolithic silicon diaphragm with the strain gauge and thin-film resistor network integrated on-chip. Laser trimming during wafer fab calibrates offset and span so each unit is interchangeable without per-device trimming. The vented-gauge port exposes the back side of the die to atmosphere through the housing, so the output always references ambient barometric pressure rather than a sealed vacuum - important for weather, respiration, and altitude-relative instrumentation. Typical applications include medical respiration and CPAP airflow monitoring, HVAC and air-flow meters, altitude and barometric reference sensing, industrial pneumatic pressure monitoring, weather stations, and altitude-correcting instrumentation for drones or wearables. The 40 mV full-scale swing is well-matched to instrumentation amplifiers and 12-bit ADC front ends. When designing with this device, plan for a high-gain instrumentation amplifier stage after the bridge because the native 40 mV output is small. Use a stable low-noise 10 V excitation supply because span and offset track Vexcitation; any ripple on Vexcitation becomes ripple on the output. Apply conformal coating or potting if the vented port is exposed to condensing humidity. This page synthesizes distributor pricing, drop-in package-equivalent alternatives from NXP and STMicroelectronics, and practical design notes that are not contained in the manufacturer datasheet alone.
MPX2102GVP - 100 kPa Vented Gauge Pressure Sensor | NXP
The NXP MPX2102GVP is a 100 kPa on-chip temperature-compensated silicon piezoresistive pressure sensor housed in a 4-SIP top-port module with a 0.19 inch (4.93 mm) tube inlet. The device delivers a linear analog output of 0 mV to 40 mV at 10 V excitation spanning a vented gauge pressure range of 0 to 14.5 PSI (100 kPa). A pressure sensor is a transducer that converts an applied pneumatic or hydraulic force into a proportional electrical signal, serving as the sensing layer between a physical medium and an electronic measurement system. Within the broader instrumentation hierarchy, the MPX2102GVP belongs to the family of piezoresistive (strain-gauge) sensors, then to MEMS silicon sensors, and finally to signal-conditioning transducers. The piezoresistive principle uses diffused silicon strain gauges whose resistance changes with diaphragm deflection, providing higher sensitivity and smaller form factors than legacy metal-foil gauges. The MPX2102 series integrates a monolithic silicon diaphragm with laser-trimmed thin-film resistors, providing a temperature-compensated output across 0 C to 85 C. Sensitivity is typically 0.4 mV/kPa when excited at the recommended 10 V supply, and the device exhibits strong linearity across its full-scale range. The 4-SIP module packages the die with a vertical inlet port that simplifies tube fitting in medical and industrial manifolds. Key features include a maximum pressure rating well above the operating span to survive pressure spikes, EMI/RFI insensitivity inherent to differential Wheatstone-bridge sensing, and a robust molded package suitable for non-corrosive gas media. The bridge impedance is nominally high (approximately 400 ohm to 500 ohm), so a low-noise instrumentation amplifier is recommended to buffer and amplify the millivolt-level signal. Typical applications include respiratory and CPAP airflow monitoring, barometric compensation for weather stations and altimeters, HVAC duct pressure measurement, pneumatic leak detection, and industrial process control loops where a low-pressure differential must be digitized. The vented gauge reference (side opposite the inlet) lets the sensor output correct for atmospheric pressure changes, unlike sealed gauge devices. When designing with this part, use a low-offset, low-drift op-amp such as a zero-drift chopper amplifier to preserve the small-signal accuracy; lead-length-induced errors and self-heating should also be minimized. A stable 10 V excitation rail is required to take full advantage of the calibrated transfer function. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical signal-chain design notes not found in the manufacturer datasheet alone.
MPX2200A - 200 kPa Absolute Pressure Sensor, 10V, 4-SIP | NXP
The NXP MPX2200A is a 200 kPa on-chip temperature compensated silicon piezoresistive pressure sensor that delivers a highly accurate, linear voltage output directly proportional to applied absolute pressure, housed in a unibody 4-SIP through-hole module. Headline parameters: 0 to 200 kPa (0 to 29.01 PSI) absolute operating range, 0 to 40 mV full-scale span at 10 V excitation, and 116.03 PSI (800 kPa) maximum overpressure rating. The device integrates a Wheatstone bridge of silicon piezoresistive strain gauges laser-trimmed for temperature compensation and offset nulling. A piezoresistive pressure sensor is a transducer in which the piezoresistive effect of silicon is used to convert mechanical strain from an applied pressure into a differential resistance change; this change is then read out as a differential voltage across an integrated Wheatstone bridge. Within the broader sensor hierarchy, the MPX2200A sits at: pressure sensor -> force/pressure transducer -> MEMS sensor -> sensor IC. Because the bridge output is ratiometric to excitation voltage, the device scales naturally with supply, simplifying external ADC calibration. Key features include a typical full-scale output of 40 mV at 10 V excitation (0.2 mV/kPa nominal sensitivity for the A-version), temperature compensation across 0 to +85 C, low off-axis sensitivity, and a single-side ported 4-SIP module with PC-pin termination for through-hole PCB mounting. The integrated unibody construction eliminates the need for external O-ring sealing in many board-mount medical and industrial applications. The MPX2200A exploits a monolithic silicon die diffused with a piezoresistive bridge whose resistors change value under membrane deflection. On-chip laser trimming flattens the temperature curve and minimizes zero-pressure offset, so designers receive a near-calibrated device that requires only gain-setting on the signal-conditioning front end. The 4-SIP package isolates the pressure port from the PCB, allowing conformal coating of surrounding circuitry. Typical applications include medical non-invasive blood pressure monitoring, industrial process pressure transmitters, altimeters and barometric references, HVAC pressure switches, and liquid level sensing via hydrostatic head. Industrial and medical instrumentation are dominant end uses because the temperature compensation and mV-level analog output simplify interface to 16-bit ADCs. Designers must provide a clean, low-noise 10 V excitation reference (the output is ratiometric), typically using a low-dropout regulator or a reference buffer. Decoupling caps and guarding on the bridge outputs reduce susceptibility to supply ripple and EMI pickup when cabling to distant signal-conditioning boards. This page synthesizes distributor pricing, drop-in alternatives within the MPX2200 family, and practical design notes not found in a single source - including parameter comparisons against MPX2200AP/GP/DP variants and guidance on ratiometric ADC interfacing.
MPX2200A117 - 200 kPa Absolute Pressure Sensor | NXP Semiconductors
The NXP MPX2200A117 is a 200 kPa absolute, on-chip temperature-compensated and calibrated silicon pressure sensor supplied in a 4-SIP through-hole module (case 117). It is designed for systems that digitize or condition a piezoresistive Wheatstone-bridge output signal with a single supply between 6 V and 16 V (max 20 V), delivering a full-scale span of 40 mV nominal at 10 V excitation. A pressure sensor, also called a pressure transducer, is a device that converts an applied differential or absolute pressure into a proportional electrical signal. The MPX2200A belongs to the MPX family of piezoresistive sensors, which sit in the broader transducer category below analog signal-chain components and above raw MEMS diaphragms. By integrating the strain-gauge bridge, temperature compensation, signal conditioning, and ESD protection on a single monolithic silicon die, NXP produces a calibrated transducer that requires only an external amplifier and ADC to deliver a digital pressure reading. Key features include a 0 kPa to 200 kPa absolute operating range (approximately 29.01 psi), a typical full-scale span of 40 mV at 10 V excitation with a measured offset trim range that supports zero calibration, an industry-leading accuracy of ±0.25 %V FSS when externally amplified and corrected, and a temperature-compensated range of 0 °C to +85 °C. The integrated laser-trimmed thin-film network calibrates span and offset over the compensated temperature range, eliminating most software polynomial correction in the host MCU. Architecturally, the MPX2200A employs a proprietary Monolithic Silicon Strain Gauge (MSSG) process that places the piezoresistors on a chemically etched silicon diaphragm. The diaphragm deflection is proportional to applied pressure; the resulting bridge imbalance is amplified by internal thin-film resistors and laser-trimmed for span accuracy. The result is a ratiometric analog output with low temperature coefficient of span (< -1.0 %V FSS over 0 to 85 °C) and stable long-term repeatability. Typical applications include medical respiration monitors, HVAC air-flow controllers, industrial process control loops, altitude measurement for drones and avionics, and consumer weather stations. In a CPAP or ventilator use-case, the 0 to 200 kPa absolute range directly maps to airway pressure while the 10 V excitation span simplifies the front-end ADC reference design. Engineers should treat the 40 mV full-scale span as a low-level signal: place a low-offset, low-noise instrumentation amplifier within 50 mm of the sensor pins, use a Kelvin connection to the excitation source, and add a small RC filter (typ. 1 kohm + 10 nF) to suppress EMI. Because the silicon die is sensitive to humid environments, the case-117 housing should be sealed with an O-ring in any liquid-coupled installation. This page synthesizes distributor pricing, drop-in NXP and cross-brand alternatives, application notes, and PCB-level design guidelines not found in the manufacturer datasheet alone.
MPX2200AP - 200 kPa Absolute Pressure Sensor 4-SIP | NXP
The NXP MPX2200AP is a 200 kPa on-chip temperature-compensated silicon piezoresistive pressure sensor in a 4-SIP through-hole module with axial pressure port. Pressure output of 0 mV to 40 mV at 10 V excitation, with absolute pressure reference and full-scale span of 29.01 PSI (200 kPa). The device provides a highly accurate and linear voltage output directly proportional to applied pressure, and is one of the legacy MPX2200 series devices originally developed by Motorola and now produced by NXP and STMicroelectronics. A piezoresistive pressure sensor is a MEMS device in which four silicon piezoresistors arranged in a Wheatstone bridge on a silicon diaphragm change value as the diaphragm flexes under applied pressure. The MPX2200AP's transducers are on-chip temperature compensated between 0C and 85C, eliminating external compensation networks and simplifying signal conditioning. The device is part of the broader sensor category hierarchy: pressure sensor -> MEMS sensor -> transducer -> sensor -> electronic component, and integrates analog signal conditioning at the die rather than as an external circuit. Key features include 0 mV to 40 mV full-scale output, 0.2 mV/V typical sensitivity (FS span / excitation / full-scale = 40 mV / 10 V / 200 kPa), 0C to 85C compensated temperature range, and absolute pressure sensing with internal vacuum reference. The 4-SIP package provides a single axial pressure port and through-hole mounting suitable for industrial and medical pressure measurement. These specifications make it a workhorse for legacy designs in industrial process control, medical instrumentation, and pneumatic systems where calibrated millivolt outputs feed external instrumentation amplifiers and ADCs. Typical applications include barometric pressure measurement, medical respiratory monitoring, industrial process pressure sensing, HVAC duct pressure, and altitude measurement. The millivolt-level output is typically amplified by an external instrumentation amplifier such as the INA128 or AD620 before ADC conversion. The device is frequently used in motor drive and control, robotics, and test and measurement systems requiring reliable absolute pressure readings. When designing with the MPX2200AP, plan for a high-gain low-noise instrumentation amplifier front end and a stable 10 V excitation supply. The 4-SIP module requires through-hole PCB mounting and axial pressure port connection - check port tubing interface (4.93 mm / 0.19 inch male tube). The datasheet estimates an end-of-life date of 2025, so for new designs consider the MPX2202AP successor.
MPX2200D - 200kPa Differential Pressure Sensor 4-SIP | STMicroelectronics
The STMicroelectronics MPX2200D is a 200 kPa on-chip temperature-compensated and calibrated silicon piezoresistive pressure sensor in a 4-SIP module, providing a highly accurate and linear voltage output directly proportional to the applied differential pressure. A piezoresistive pressure sensor is a MEMS device in which four silicon strain gauges arranged in a Wheatstone bridge change resistance when mechanical pressure deflects a thin silicon diaphragm. The differential configuration (suffix "D") measures the pressure difference between two ports, rather than the absolute or gauge value relative to a sealed vacuum reference. Pressure sensors occupy the transducer layer of any measurement signal chain, sitting between the physical process variable and the analog signal-conditioning front end. The MPX2200D delivers a 0 mV to 40 mV differential output at 200 kPa (29.01 PSI) full-scale pressure when excited with a 10 V supply, with on-chip temperature compensation over 0C to +85C, ±0.25% linearity, and ±1% maximum pressure hysteresis. The single-port side and dual-port side process connections accept standard 3.45 mm (0.136 in) barbed pressure fittings, while the through-hole 4-SIP module (Case 344-15) is compatible with PCB-mount assembly. Typical applications include industrial process control (hydraulic and pneumatic pressure monitoring), medical instrumentation (respiratory and infusion pumps), HVAC duct sensing, altimeters and barometric instruments, and consumer appliance water-level detection. The differential topology is particularly useful where bidirectional flow or vacuum-to-positive pressure measurement is required. When designing with the MPX2200D, an instrumentation amplifier with low offset drift (such as the INA125 or AD620) is typically used to amplify the 40 mV full-scale output to a useful ADC input range. Add a common-mode RC filter at the sensor output to attenuate EMI from motor or relay switching in industrial environments.
MPX2200DP - 200 kPa Differential Pressure Sensor, 4-SIP Module
The NXP (originally Motorola) MPX2200DP is a 200 kPa on-chip temperature-compensated silicon piezoresistive pressure sensor housed in a 4-SIP through-hole module with dual-port tube inlet (4.93 mm / 0.19 in). It delivers a highly accurate, linear differential voltage output directly proportional to applied pressure, with a full-scale span of 0 mV to 40 mV at the 10 V excitation specified by the manufacturer. The dual-port (DP) port configuration allows the device to measure one pressure against another reference pressure for gauge-differential applications such as flow elements and process control. A piezoresistive pressure sensor is a MEMS (micro-electromechanical systems) device in which a silicon diaphragm is etched with embedded strain-gauge elements whose resistance changes proportionally to the mechanical strain caused by the differential pressure across the diaphragm. The on-chip temperature compensation and calibration network, electronically adjusted against the bias, normalizes the output across the -40C to +125C operating range, removing the need for external linearization circuitry in many embedded designs. Within the broader taxonomy, this places the MPX2200DP in the hierarchy: piezoresistive pressure sensor -> pressure sensor -> MEMS sensor -> transducer -> sensor. Key differentiating features of the MPX2200DP include a differential operating pressure range of 0 to 200 kPa (29.01 PSI), 0 mV to 40 mV output span at 10 V excitation, 0.2 mV/kPa nominal sensitivity, integrated on-chip temperature compensation, ratiometric output relative to supply, and a maximum supply of 5 V input (industry-standard excitation limit) with absolute maximum of 16 V. The single inline package (4-SIP) form factor with two parallel ports simplifies mechanical mounting in pneumatic and hydraulic manifolds, while the through-hole die-cast package offers robust mechanical stability in vibration-prone environments. Typical applications include industrial process controls, medical instrumentation such as respiratory and patient monitoring, HVAC pressure monitoring, altimeters and barometric systems, engine control and fuel-pressure monitoring, and level measurement. Its differential architecture makes it especially suited to measuring pressure drops across filters, valves, and flow-restriction orifices where a gauge sensor would not provide accurate dynamic readings. When designing with this device, ensure a clean, regulated 5 V to 10 V excitation supply and a stable low-impedance reference to preserve the ratiometric accuracy of the output. Use an instrumentation amplifier with low offset and low drift to extract the small mV-level signal, and apply a low-pass filter to remove high-frequency noise from pumps and motors in the surrounding system. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design considerations not found in the manufacturer datasheet.
MPX2200GP - 200 kPa Vented Gauge Pressure Sensor | STMicroelectronics
The STMicroelectronics MPX2200GP is a silicon piezoresistive pressure sensor that delivers a highly accurate, linear voltage output directly proportional to applied pressure, in a 4-SIP through-hole module. The device is rated for a 200 kPa (29.01 PSI) full-scale vented-gauge pressure range with a typical full-scale span of 40 mV at 10 V excitation, and on-chip temperature compensation and laser-trimmed calibration provide stable offset and span over the operating range. A piezoresistive pressure sensor is a MEMS device in which diffused strain gauges on a silicon diaphragm change resistance when the diaphragm deflects under applied pressure, producing a differential output that scales linearly with pressure. Within the broader signal-chain taxonomy, MPX2200GP sits in the sensor front-end layer above raw signal conditioning and below the microcontroller ADC; it is a passive analog transducer (not an active pressure IC like a digital-output barometer) and therefore requires an external precision op-amp such as an INA122 or AD620 instrumentation amplifier to scale its millivolt-level output to the 0-5 V or 4-20 mA range used by most ADCs and PLCs. Key features include 0 mV to 40 mV typical full-scale span (10 V excitation), piezoresistive silicon diaphragm with on-chip thin-film resistor network, laser-trimmed offset and span calibration for tight part-to-part repeatability, 0.19 inch (4.93 mm) tube port for pneumatic connection, vented-gauge reference (atmospheric backside), and a robust 4-SIP unibody package with integral port. The part is specified for 0 to 200 kPa (0 to 29.01 PSI) operating pressure and is compatible with both DC constant-voltage (10 V typical) and constant-current excitation schemes. Typical applications include industrial pneumatic controls, HVAC air-flow monitoring, medical respiratory instruments (spirometers, ventilators), consumer air-pressure gauges, altimeters and barometric instrumentation, and process-control analog front ends. The vented-gauge reference makes it well suited to applications where the absolute atmospheric pressure on the reference side must be subtracted from the measured pressure. When designing with the MPX2200GP, plan the signal chain carefully: the differential output is ratiometric to the excitation supply, so a clean, low-noise 10 V reference (such as the REF01 or REF02) is required to avoid drift in the scaled reading. Place the instrumentation amplifier within 50 mm of the sensor to minimize common-mode noise pickup, and add ESD protection at the pneumatic port if the media is conductive or wet.
MPX2202A - 200kPa Absolute Pressure Sensor, 4-SIP | NXP
The NXP MPX2202A is a 200 kPa on-chip temperature-compensated silicon piezoresistive pressure sensor that delivers a highly accurate, linear analog voltage output directly proportional to the applied absolute pressure. The device operates from a 10V (16V max) supply and produces 0 mV to 40 mV full-scale output across the 0 kPa to 200 kPa (29.01 PSI) pressure range, housed in a unibody 4-SIP through-hole module with a Cell w/Body O-Ring port. 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.
MPX2202AP - 200 kPa Absolute Pressure Sensor, 4-SIP | NXP
The NXP MPX2202AP is a 200 kPa on-chip temperature-compensated silicon piezoresistive absolute pressure sensor housed in a 4-lead Single In-line Package (4-SIP) module with a male 0.19" (4.93 mm) tube port. It delivers a linear differential analog output of 0 mV to 40 mV at a 10 V excitation supply, covering a pressure range of 0 to 29.01 PSI (0 to 200 kPa). The MPX2202AP belongs to NXP's legacy MPXx2202 family of monolithic silicon diaphragm sensors. An absolute pressure sensor is a transducer that measures pressure relative to a sealed vacuum reference inside the die, rather than to ambient atmospheric pressure. The category hierarchy is: pressure sensor -> transducer -> sensor -> electronic component. Within NXP's MPX series, the MPX2202AP is the absolute-pressure variant, distinct from gauge (MPX2202GP) and differential (MPX2202DP) versions in the same family. The on-chip thin-film resistor network and laser-trimmed calibration provide factory-set span and offset correction, while integrated temperature compensation keeps the output stable across the operating temperature range. Key features include a 0 mV to 40 mV full-scale output (40 mV span at 10 V excitation), ±0.25% typical linearity, ±1.0% maximum pressure hysteresis, and on-chip temperature compensation from 0 °C to +85 °C. The 4-SIP top-port package simplifies tube/port integration, and the piezoresistive bridge delivers a ratiometric output proportional to supply voltage, which simplifies system-level analog-to-digital conversion. Typical applications include medical infusion pumps, blood-pressure monitors, industrial process control, HVAC transmitters, altimeters, barometers, and level measurement. The 200 kPa range comfortably covers physiological pressure ranges as well as low-pressure industrial processes. When designing with the MPX2202AP, note that the output is ratiometric: it scales linearly with the excitation voltage, so a stable, low-noise 10 V reference is required to maintain absolute pressure accuracy. Add a low-offset differential amplifier downstream for signal conditioning, and provide adequate PCB thermal management to keep the die within the calibrated temperature window. This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
MPX2202ASX - 200 kPa Absolute Pressure Sensor | NXP
The NXP MPX2202ASX is a 200 kPa absolute pressure sensor in a 4-SIP through-hole module with a male 0.19 inch (4.93 mm) barbed pressure port, delivering a linear differential analog voltage directly proportional to applied pressure. The device uses a silicon piezoresistive sensing element with on-chip thin-film temperature compensation and laser-trimmed calibration, producing 0 mV to 40 mV output when excited with 10 V. It covers 0 kPa to 200 kPa (0 PSI to 29.01 PSI) operating pressure with up to 58.02 PSI (400 kPa) maximum overpressure capability. Originally developed by Motorola and transferred through Freescale to NXP, the MPX2202 series remains a long-standing reference for low-cost analog pressure sensing. What is an absolute pressure sensor? An absolute pressure sensor measures pressure relative to a sealed vacuum reference built into the die, rather than relative to ambient atmospheric pressure. Absolute pressure sensors sit within the broader sensor hierarchy as a subset of piezoresistive silicon pressure sensors, which are themselves a category of MEMS (micro-electromechanical systems) transducers. The piezoresistive effect describes the change in resistance of a strained silicon resistor; modern on-chip compensation networks make these sensors usable directly with an analog ADC, without external linearization circuitry. Key features of the MPX2202ASX include a typical full-scale span of 40 mV at 10 V excitation, temperature compensation from 0 C to +85 C, and a maximum combined linearity and pressure hysteresis error of approximately 1.0 %VFSS. The integrated temperature compensation network and calibration are trimmed at the wafer level, removing the need for external signal conditioning. The 4-lead SIP module accepts a single barbed port input and outputs a Wheatstone-bridge differential voltage, simplifying interface to instrumentation amplifiers and 16-bit SAR ADCs. Technologically, the MPX2202 family pioneered the use of Xducer-on-chip temperature calibration, where polysilicon resistors are laser-trimmed during final test to cancel the piezoresistive temperature coefficient. The die is mounted on a ceramic substrate inside a ported plastic housing with silicone gel isolation, allowing it to interface with non-corrosive media such as air and dry gases while rejecting humidity-related drift. The differential bridge configuration rejects common-mode excitation noise, allowing low-cost unregulated supplies to be used with little loss of accuracy. Typical applications for the MPX2202ASX include barometric pressure measurement in weather stations and altimeters, HVAC duct pressure monitoring, process control pressure transmitters, manifold absolute pressure (MAP) signal conversion, and medical respiratory equipment. Designers also use it in pneumatic control loops and vacuum-system leak detection, where a calibrated 0 to 200 kPa reference is required. A primary design consideration is that the 40 mV full-scale output is small; an instrumentation amplifier with high CMRR (such as the INA128 or AD8421) is normally placed immediately adjacent to the sensor output. Drive the bridge with a low-noise, low-drift 10 V reference to preserve the factory calibration; a typical 12-bit ADC will not fully resolve the 40 mV span, so most users pair the sensor with a 16-bit or 24-bit sigma-delta converter.
MPX2202D - 200 kPa Differential Pressure Sensor | NXP
The NXP MPX2202D is a 200 kPa on-chip temperature compensated and calibrated silicon piezoresistive pressure sensor housed in a 4-SIP through-hole unibody package. It provides a highly accurate and linear analog voltage output directly proportional to the applied differential pressure, with a full-scale span of 0 mV to 40 mV at a 10 V supply. A pressure sensor is a transducer that converts an applied physical pressure into a reproducible electrical signal. The MPX2202D belongs to the piezoresistive sensor family, in which diffused silicon strain gauges form a Wheatstone bridge on a monolithic diaphragm. When pressure deflects the diaphragm, the gauges change resistance unbalancing the bridge and producing a pressure-proportional differential output. This category sits within MEMS sensors -> transducers -> signal conditioning chains in industrial and medical instrumentation. Key specifications include a maximum operating pressure of 29.01 PSI (200 kPa), a supply voltage of 10 V to 16 V, and a typical Wheatstone bridge output of 0 mV to 40 mV at 10 V. On-chip temperature compensation keeps the span and offset stable over the operating range, eliminating the need for external analog trimming in many designs. The unibody 4-SIP package integrates the sensing die and port into a single molded housing for through-hole PCB mounting. Architecturally, the MPX2202D uses a monolithic silicon die with a chemically etched diaphragm and four piezoresistors in a Wheatstone bridge arrangement. The on-chip compensation network nullifies temperature-induced span and offset shifts, which simplifies the downstream instrumentation amplifier stage. The result is a calibrated, ratiometric analog output that scales linearly with applied differential pressure across 0 to 200 kPa. Typical applications include HVAC airflow and differential pressure monitoring, medical respiratory equipment such as spirometers and ventilators, process control instrumentation, altitude and barometric measurement, and industrial pneumatic system monitoring. The differential port style makes it well suited to measuring pressure drop across filters, valves, or HVAC duct restrictions. When designing with the MPX2202D, ensure the instrumentation amplifier input common-mode range accommodates the sensor's bridge bias, and use a stable low-noise supply to avoid corrupting the millivolt-level output. Add protection against condensation and overpressure spikes to extend sensor life in humid or pulsating environments. This page synthesizes distributor pricing, pinout, drop-in NXP and competitor equivalents, and practical application guidance not found in the manufacturer datasheet alone.
MPX2202DP - 200kPa Differential Pressure Sensor | NXP/ST
The NXP MPX2202DP is a 200 kPa on-chip temperature-compensated and calibrated silicon piezoresistive pressure sensor in a 4-SIP module (Case 867C) with a differential dual-port tube inlet (Sensor 4 configuration). It delivers a highly accurate, linear voltage output directly proportional to applied pressure, with a full-scale span of 40 mV at 10 V supply. A piezoresistive pressure sensor is a MEMS device in which a silicon diaphragm flexes under applied pressure, changing the resistance of strain gauges integrated into the diaphragm. A Wheatstone-bridge network converts the strain into a differential voltage output. Piezoresistive sensors fall within the broader category of MEMS pressure sensors, which itself is part of the sensor hierarchy: pressure sensor -> transducer -> sensor IC -> semiconductor device. The MPX2202DP sits in this hierarchy as a low-cost, calibrated, temperature-compensated analog-output pressure transducer suitable for industrial and medical instrumentation. Key features include a 0 to 200 kPa (0 to 29.01 PSI) pressure range, 40 mV full-scale output at 10 V excitation, differential dual-port (tube inlet) pressure input, on-chip laser-trimmed temperature compensation over 0 to 85 C, a 1.0% (typical) linearity, and a 2.0% (maximum) pressure hysteresis. The monolithic single-chip construction co-locates the strain gauge and thin-film resistor network, which together achieve the precise span and offset calibration. The architecture relies on a single monolithic silicon diaphragm with piezoresistors in a Wheatstone-bridge topology. The thin-film resistor network performs laser trimming during wafer-level calibration to set span and offset against reference pressures, while the package geometry (dual-port tube inlet) accepts differential pressure across two ports - one for the high-pressure reference, the other for the low-pressure reference. Typical applications include medical instrumentation (blood pressure monitors, ventilators, infusion pumps), industrial process control (HVAC pressure sensing, pneumatic gauges, hydraulic monitoring), and consumer appliances (washing machine water level, electronic altimeters). The dual-port configuration makes this sensor particularly well suited to closed-loop pressure systems where a differential measurement is required. Designers should note that the differential output requires differential amplification to interface to ADC or microcontrollers. The 4-SIP module package style accommodates through-hole PCB mounting; for surface-mount designs the equivalent MPXV2202GP/GS port may be preferred. RoHS compliance is confirmed per the manufacturer datasheet.
MPX2202GP - 200 kPa Gauge Pressure Sensor, 4-SIP, 10V | NXP
The NXP MPX2202GP is a 200 kPa on-chip temperature-compensated silicon piezoresistive pressure sensor in a 4-SIP top-port module, delivering a linear 0 mV to 40 mV output scaled to the 10V excitation supply. It is a gauge-type sensor with a male 0.19" (4.93 mm) tube port and is targeted at medical, industrial, and consumer pressure measurement up to 29.01 PSI (200 kPa). A piezoresistive pressure sensor is a MEMS device in which a diaphragm with embedded strain gauges changes resistance proportionally to applied differential pressure; the MPX2202GP integrates on-chip signal conditioning and temperature compensation so the user only applies 10 V DC excitation and reads a ratiometric millivolt signal. Within the broader sensor taxonomy, this part sits in the hierarchy: pressure sensor -> piezoresistive pressure sensor -> silicon strain-gauge sensor -> MEMS sensor -> transducer, and the 4-SIP package belongs to the through-hole SIP (Single Inline Package) family used predominantly for legacy and industrial pneumatic interfaces. Key features include 0 mV to 40 mV full-scale output (10 V supply), 0 to 200 kPa operating range, on-chip temperature compensation and calibration, gauge (vented) reference, and linear response directly proportional to applied pressure. The integrated compensation network eliminates the need for external trim circuitry, simplifying host-microcontroller or A/D front-end designs. The device is built on a silicon die using a diffused piezoresistive Wheatstone-bridge topology, with the four bridge resistors laser-trimmed during wafer-level test. The 4-SIP top-port housing routes incoming pressure through a tube stub to the diaphragm side of the die while the back side vents to the reference (ambient) via the package's secondary port, producing a true gauge output. Typical applications include medical patient monitoring (blood pressure, respiratory), HVAC air-flow and duct pressure sensing, industrial pneumatic control, altimeters and barometric instruments, and consumer appliance pressure monitoring. The 4-SIP top-port geometry suits manifolds and enclosures where pressure tubing enters vertically. A key design consideration is that the output is ratiometric with the 10 V supply: any supply noise directly couples into the output, so a low-noise, low-drift excitation regulator is required to realize the datasheet accuracy. Dry air or non-corrosive gases are the only verified media; aggressive media require factory consultation. This page synthesizes distributor pricing, drop-in alternatives (MPX2202DP, MPX2202AP, MPX2102GP), and practical design notes not found in the standalone datasheet.
MPX4080D - 0 to 80 kPa Differential Pressure Sensor | NXP / ST
The NXP MPX4080D (also offered by STMicroelectronics) is an integrated silicon piezoresistive pressure sensor that measures differential pressure from 0 to 80 kPa (0 to 11.6 PSI) and outputs a conditioned analog voltage of approximately 0.6 V to 4.9 V in a through-hole 6-SIP module. A pressure sensor is a transducer that converts an applied mechanical pressure into a proportional electrical output. Within the broader sensor hierarchy it belongs to MEMS (micro-electro-mechanical systems) devices, specifically the piezoresistive family, which uses silicon strain gauges whose resistance changes with applied stress. Integrated pressure sensors add on-chip signal conditioning, temperature compensation, and factory calibration, so the user does not have to design an instrumentation amplifier or trim resistors. The output is a ratiometric, single-ended analog voltage that can be read directly by a microcontroller ADC or a comparator, making these parts a staple in low-cost pressure measurement. Key features of the MPX4080D include a 0 to 80 kPa differential pressure range, 5.1 V typical supply voltage, 0.6 V to 4.9 V analog output span, on-chip temperature compensation and calibration, monolithic single-element transducer design, and bipolar processing with thin-film metallization for long-term stability. The output is essentially linear with applied pressure, simplifying firmware-side conversion. The MPX4080D combines micromachined silicon, thin-film metallization, and bipolar signal-conditioning circuitry on one die. This single-element patented architecture eliminates the mismatch errors that plague two-element bridge sensors and gives excellent offset and full-scale repeatability. The 6-SIP through-hole package exposes the backside pressure port while routing the six electrical pins through a standard PCB footprint. Typical applications include HVAC blower and air-handling pressure monitoring, barometric correction for engine control, blood pressure and medical instrumentation, weather stations, altimeters, manifold absolute pressure sensing, and any MCU-based system that needs a calibrated analog pressure signal. The differential configuration is well suited to measuring pressure drop across a filter, orifice, or fan. When designing with this part, ensure the media is dry air (or compatible gas/liquid per the datasheet), add a 0.01 uF decoupling capacitor close to the supply pin, and protect the port from condensing moisture. The output is ratiometric to the supply, so a stable 5.0 V reference improves absolute accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MPX4100A - 20-105 kPa Absolute MAP Pressure Sensor | NXP
The NXP MPX4100A is a monolithic, signal-conditioned, temperature-compensated and calibrated silicon absolute pressure sensor in a 6-pin SIP through-hole package, designed to deliver an analog output voltage proportional to applied absolute pressure from 20 kPa to 105 kPa (2.9 PSI to 15.23 PSI). The on-chip signal conditioning combines piezoresistive sensing elements with thin-film metallization and bipolar signal-path circuitry to produce a ratiometric 0.3 V to 4.9 V output swing over a 4.85 V to 5.35 V supply range with a typical sensitivity of 54 mV/kPa. This part is part of the MPX4100 series originally introduced by Motorola and now produced by NXP for manifold absolute pressure (MAP) sensing. An absolute pressure sensor is a transducer that outputs a signal referenced to a sealed vacuum rather than to ambient atmospheric pressure, which makes it ideal for applications where the absolute pressure of a gas must be measured - such as engine intake manifolds, barometric instruments, and sealed enclosures. Within the broader taxonomy, the MPX4100A is a piezoresistive absolute pressure sensor -> pressure sensor -> transducer -> sensor -> semiconductor device. Its monolithic integration of mechanical diaphragm and analog front-end sets it apart from hybrid modules that combine a bare sensor element with an external op-amp trim circuit. Key differentiating specifications include a 20 kPa to 105 kPa absolute pressure operating range, an accuracy of ±1.8% across the calibrated band, a typical full-scale output of 4.81 V to 4.97 V (4.9 V nominal), and a supply current in the single-digit mA range that makes the device directly compatible with 5 V microcontroller ADC inputs. The output is ratiometric to Vcc, which allows the MCU ADC reference to be tied to the same 5 V rail for intrinsic cancellation of supply-voltage drift. Technically, the MPX4100A uses a single-chip silicon diaphragm with implanted piezoresistors arranged in a Wheatstone bridge. An integrated op-amp stage buffers, temperature-compensates and calibrates the bridge output to give the calibrated 0.3 V to 4.9 V swing. This single-chip integration reduces BOM count, eliminates the need for external passive linearization networks, and improves long-term stability compared to multi-component sensor designs. Typical applications include automotive manifold absolute pressure (MAP) sensing for engine control units (ECUs), barometric pressure measurement for altimeters and weather instruments, industrial sealed-system pressure monitoring, HVAC duct pressure measurement, and vacuum system supervision. In each of these cases the absolute (rather than gauge) reference allows the system to operate irrespective of changes in ambient barometric pressure. When designing with the MPX4100A, place 100 nF decoupling as close to Vcc (pin 3) as possible and reference the host ADC reference to the same 5 V rail as the sensor to preserve ratiometric accuracy. The single-port axial SIP package must be mounted with the pressure inlet unobstructed and protected from condensation and direct water exposure. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet.
MPX4100AP1 - 20-105kPa Absolute MAP Pressure Sensor | NXP
The NXP Semiconductors MPX4100AP1 is an integrated silicon manifold absolute pressure (MAP) sensor with on-chip signal conditioning, temperature compensation, and calibration, delivering a 0.3 V to 4.9 V ratiometric analog output over a 20 kPa to 105 kPa (2.9 PSI to 15.23 PSI) absolute pressure range and housed in a 6-pin SIP (Case 867B-04) through-hole module. According to the manufacturer datasheet, the device features a 5.10 V nominal supply, 54 mV/kPa typical sensitivity, and ±2.5% maximum pressure error over 0 C to 85 C, making it suitable for automotive engine control and industrial instrumentation. A manifold absolute pressure sensor is a piezoresistive transducer that measures the absolute pressure inside the intake manifold of an internal combustion engine or in any sealed gas system. The on-chip ASIC converts the bridge output into a temperature-compensated, calibrated, ratiometric voltage proportional to pressure. MAP sensors belong to the wider category of pressure sensors (sensor ICs), which are themselves a sub-class of transducers and MEMS-based semiconductor devices used in measurement and control electronics. Key features of the MPX4100AP1 include a robust 6-SIP through-hole package with an integrated male pressure port (4.93 mm / 0.19 inch tube), 5.0 V to 5.35 V supply compatibility, and 1.5 ms response time. The ratiometric analog output simplifies ADC interfacing because the output voltage scales with VCC, eliminating the need for a precision reference. Built-in temperature compensation over 0 C to +85 C ensures stable readings across typical automotive under-hood environments without external calibration. The MPX4100AP1 uses a single-chip silicon strain-gauge bridge plus bipolar ASIC signal path, monolithically integrated for long-term stability and low hysteresis. The hardened epoxy housing and stainless-steel port are designed to withstand automotive under-hood thermal cycling and vibration. The combination of on-chip signal conditioning and ratiometric output eliminates the external op-amp and precision reference typically required for discrete bridge sensors. Typical applications include automotive engine control (MAP sensing for fuel injection), HVAC pressure monitoring, industrial pneumatic systems, barometric altimeters, and medical respiratory equipment. The wide 20 kPa-105 kPa range covers full sea-level-to-altitude operation in engine control and HVAC systems. When designing with this part, place a 0.05 uF bypass capacitor directly across the supply pins with traces as short as possible to avoid digital switching noise coupling into the analog output. The tube port must be sealed against moisture and contamination to preserve long-term accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MPX4100API - 20-105kPa Absolute Pressure Sensor | NXP
The NXP MPX4100API is an integrated silicon Manifold Absolute Pressure (MAP) sensor designed for engine control applications, providing a calibrated 0.3 V to 4.9 V analog output for absolute pressures from 20 kPa to 105 kPa (2.9 PSI to 15.23 PSI) in a 6-pin SIP (Case 867A) module. It includes on-chip signal conditioning, temperature compensation, and factory calibration, eliminating the need for external compensation circuitry in most intake-manifold designs. What is a MAP sensor? A Manifold Absolute Pressure sensor is a piezoresistive silicon device that measures the absolute pressure inside an engine's intake manifold. The measurement lets the engine control unit (ECU) compute air mass and therefore the fuel quantity required per cylinder, which is why MAP sensors sit at the heart of every speed-density engine management strategy. MAP sensors belong to the wider class of absolute pressure sensors and pressure transducers used throughout automotive, industrial, and HVAC systems. Key features of the MPX4100API include a maximum pressure rating of 400 kPa (proof pressure), 54 mV/kPa typical sensitivity, ±1.5 %V_FSS typical accuracy, and 5.0 V typical supply voltage. The device operates from -40 °C to +125 °C, uses a precision Wheatstone bridge with thin-film on-chip trimming, and is AEC-Q100 qualified for under-hood automotive deployment. The integrated design replaces several discrete parts (sensor + op-amp + reference + temp-comp network), reducing BOM cost and PCB footprint. The architecture relies on a single-crystal silicon diaphragm with diffused piezoresistors arranged in a Wheatstone bridge. Laser-trimmed resistors cancel offset and span at 25 °C, while the on-board ASIC applies second-order compensation across the full -40 °C to +125 °C automotive range. The output is a ratiometric analog voltage that swings roughly from 0.3 V at 20 kPa up to 4.9 V at 105 kPa. Typical applications include automotive engine control (MAP sensing for fuel injection), industrial pressure monitoring, HVAC systems, altimeter/barometer instrumentation, and pneumatic control systems. Because it is factory-calibrated and laser-trimmed, the MPX4100API is well suited for production designs where per-unit calibration is impractical. When designing with the MPX4100API, route the analog output through an anti-alias RC filter before the ECU ADC to suppress RF noise from the ignition system. The sensor's case must be sealed to the manifold using an O-ring and a port that does not expose the gel-coated die to direct airflow; mounting orientation matters because the gel is gravity-sensitive. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not collected in the manufacturer datasheet alone.
MPX4105A - 15-105kPa Absolute Pressure Sensor | NXP | MAP Sensor
The NXP MPX4105A is an integrated silicon piezoresistive pressure sensor for manifold absolute pressure (MAP) sensing, operating from 15 kPa to 105 kPa (2.18 PSI to 15.23 PSI) and delivering a calibrated analog output of 0.3 V to 4.9 V in a 6-SIP through-hole module. The monolithic sensor combines advanced micromachining, thin-film metallization, and bipolar signal conditioning to provide a temperature-compensated, laser-trimmed analog voltage directly proportional to absolute pressure. A Manifold Absolute Pressure (MAP) sensor is a specialized pressure transducer used in engine control systems to measure the absolute pressure inside the intake manifold. The output voltage correlates to engine load, allowing the ECU to compute the precise amount of fuel required per cylinder. MAP sensors fall under the broader hierarchy of pressure sensors -> transducers -> sensors -> electronic components, and the MPX4105A specifically uses piezoresistive technology within the silicon-based sensor category. Key features include on-chip signal conditioning that eliminates the need for external amplification, factory calibration that delivers a typical accuracy of 1.5% over 0C to 85C, and a ratiometric analog output referenced to the 5 V supply. The 6-SIP package with female port accepts a 3.4544 mm barbed hose fitting for sealed pneumatic connection, and the through-hole mounting provides robust mechanical attachment suitable for harsh under-hood automotive environments. Typical applications include automotive engine control MAP sensing, barometric pressure measurement in HVAC and weather stations, industrial pneumatic pressure monitoring, altitude measurement for drones and UAVs, and medical respiratory equipment requiring low-pressure differential sensing. The calibrated output can be fed directly to an ADC without additional analog front-end circuitry. When designing with this sensor, decouple the VCC pin with a 100 nF ceramic capacitor placed within 5 mm of the device, and route the analog signal over a guarded ground trace. The sensor is ratiometric, so supply noise on VCC directly couples into the output - use a clean, well-regulated 5 V analog rail.
MPX4115A - 15-115 kPa Absolute Pressure Sensor | NXP
The NXP MPX4115A is an integrated silicon pressure sensor designed for manifold absolute pressure, altimeter, and barometer (BAP) applications, providing an analog output proportional to absolute air pressure over a 15 kPa to 115 kPa range (2.18 PSI to 16.68 PSI) in a 6-pin SIP Module package. Its headline parameters are 0.2 V to 4.8 V analog output swing from a single 5.1 V supply, on-chip signal conditioning, factory calibration, and integrated temperature compensation. An absolute pressure sensor is a MEMS-based transducer whose output is referenced to a sealed internal vacuum rather than to ambient, so it directly measures the local atmospheric or system absolute pressure regardless of weather or altitude variation. Within the sensor taxonomy, the MPX4115A sits below general environmental sensors and alongside gauge and differential pressure sensors, but it is distinguished by its integrated bipolar op-amp signal chain, thin-film resistor network, and factory calibration that together eliminate the need for external analog front-end components. This integration places it within the broader category of analog-output ICs that convert a physical stimulus into a ready-to-read voltage. Key features of the MPX4115A include high-level analog output (0.2 V to 4.8 V) directly readable by an MCU ADC, calibrated accuracy of ±1.5% over 0°C to +85°C, on-chip temperature compensation from -40°C to +125°C, and media-resistant packaging variants within the same MPxx4115 family. The device is specifically designed for dry air applications; media compatibility for other gases should be confirmed with the manufacturer, as water, oils, and corrosive chemicals can damage the silicon sensing element. The MPX4115A uses a piezoresistive silicon diaphragm whose strain gauge resistance changes with applied pressure. Freescale/NXP's bipolar op-amp and laser-trimmed thin-film resistor network convert that resistance change into a high-level linear voltage. The factory trim calibrates the output transfer function VOUT = VS * (0.01059 * P - 0.1518) ± error across the 15-115 kPa range, eliminating device-to-device spread and removing the need for system-level software compensation. Typical applications include automotive engine control manifold absolute pressure (MAP) sensing, weather station barometric pressure measurement, altitude estimation for handheld GPS and outdoor navigation, HVAC and appliance pressure monitoring, and industrial pneumatic system monitoring. The wide temperature range and small unibody package suit both automotive and industrial environments. When designing with this sensor, add RC low-pass filtering on the output to reject high-frequency electrical noise and protect the device port from condensation, dust, and direct water exposure.
MPX4115A117 - 15-115 kPa Absolute Pressure Sensor | NXP
The NXP MPX4115A117 is an integrated silicon piezoresistive absolute pressure sensor with on-chip signal conditioning, temperature compensation, and calibration, housed in a 6-pin SIP (Case 867-08) through-hole package. It measures absolute air pressure from 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) and provides a ratiometric analog output voltage of 0.2 V to 4.8 V nominally proportional to applied pressure. The device operates from a 5 V DC supply drawing a typical supply current of 8 mA, with an operating temperature range of -40 °C to +125 °C. What is an absolute pressure sensor? An absolute pressure sensor measures pressure referenced to a sealed vacuum reference inside the die, so its output indicates true absolute pressure regardless of ambient barometric changes. Absolute sensors sit within the broader category of pressure transducers and IC-based environmental sensors, used wherever a system needs ambient atmospheric or sealed-cavity pressure data rather than gauge (relative-to-atmosphere) or differential (between two ports) readings. Key features of the MPX4115A117 include 1.5% maximum accuracy over 0 °C to 85 °C, integrated bipolar op-amp signal conditioning plus thin-film resistor networks on the same silicon die, and a typical response time of 1.0 ms. The on-chip calibration eliminates the need for external trimming components, simplifying board-level implementation. Media-resistant construction and gel isolation protect the sensing element from humid and dirty air streams. Typical applications include automotive engine control unit (ECU) manifold absolute pressure (MAP) sensing, altimeters and barometric pressure measurement in weather stations and GPS modules, industrial vacuum monitoring, HVAC altitude compensation, and consumer wearables that require barometric pressure data. The wide temperature range and calibrated analog output also make it suitable for drone altitude hold and handheld instruments. When designing with the MPX4115A117, ensure the supply is well-decoupled with a 10 µF bulk and 0.1 µF ceramic capacitor near the VCC pin. The ratiometric output requires an ADC reference tied to the same 5 V rail for accurate conversion. For best long-term accuracy, keep the inlet port vertical and shield the device from direct sunlight to minimize thermal gradients. This page synthesizes distributor pricing, cross-reference alternatives, application notes, and design guidance that complement the manufacturer datasheet, giving engineers a single decision-ready reference rather than scattered PDF fragments.
MPX4115AP - 15-115 kPa Absolute Pressure Sensor | NXP | 6-SIP
The NXP MPX4115AP is an integrated silicon piezoresistive absolute pressure sensor with on-chip signal conditioning, temperature compensation, and factory calibration, housed in a 6-lead Single In-line Package (SIP, Case 867B-04) with a male 0.19" (4.93 mm) tube pressure port. It measures absolute pressure from 15 kPa to 115 kPa (2.18 to 16.68 psi) and provides a ratiometric analog output of 0.2 V to 4.8 V from a 5.1 V typical supply. An absolute pressure sensor is a transducer that measures pressure referenced to a sealed vacuum rather than ambient atmosphere, which makes it ideal for barometric and altitude applications where the absolute atmospheric pressure must be known regardless of weather or altitude. Absolute pressure sensors belong to the broader class of piezoresistive pressure sensors, which are themselves a subset of MEMS (Micro-Electro-Mechanical Systems) sensors. The MPX4115 family integrates a Wheatstone-bridge strain-gauge network with bipolar op-amp signal conditioning and laser-trimmed thin-film calibration resistors, producing a high-level linear analog output directly usable by an ADC or microcontroller without external amplification. Key features of the MPX4115AP include a sensitivity of 45.9 mV/kPa, 5.1 V typical supply voltage with 4.85 V to 5.35 V operating range, 6 mA typical supply current, an output range of 0.20 V to 4.80 V, and a maximum operating temperature of 125 C with a minimum of -40 C. The device is also notable for its 0.2% to 1.5% linearity, temperature-compensated output over 0 C to 85 C, and low error band across the compensated range. Architecturally, the MPX4115AP uses a diffused silicon diaphragm that flexes proportionally to applied absolute pressure. The resulting strain changes the resistance of an on-die piezoresistive Wheatstone bridge, which is then amplified by an on-chip bipolar op-amp stage and scaled by laser-trimmed thin-film resistors to produce the factory-calibrated 0.2-4.8 V output. This integrated approach eliminates the need for external signal conditioning, op-amps, or calibration lookup tables in the host MCU for non-precision use cases. Typical applications include altimeters and barometers for weather stations, drones and aviation, MAP (Manifold Absolute Pressure) sensing in engine control units, HVAC pressure monitoring, weather instruments, medical respirators and ventilators, and consumer altitude/weather meters. Its 15 kPa lower bound (roughly the pressure at 11 km altitude) makes it suitable for high-altitude avionics as well as surface barometric readings. When designing with this part, ensure the supply voltage is well regulated and low-noise because the output is ratiometric to VCC. Decouple VCC with a 100 nF ceramic capacitor close to the supply pin and route analog signals away from high-current switching traces to preserve the 0.2-4.8 V output's 1% accuracy band. This page consolidates distributor pricing, calibrated output curves, parametric alternatives, and practical design guidance not collected in any one place in the manufacturer datasheet.
MPX4115AS - 15-115kPa Absolute Pressure Sensor | NXP Semiconductors
The NXP Semiconductors MPX4115AS is an integrated silicon piezoresistive pressure sensor designed for absolute pressure measurement in altimeter and barometer (BAP) applications, housed in a 6-SIP through-hole module with a 0.19 inch (4.93 mm) tube port. The device delivers a calibrated analog output voltage of 0.2 V to 4.8 V that is linearly proportional to applied absolute pressure over the 15 kPa to 115 kPa range, corresponding to approximately 2.18 PSI to 16.68 PSI or sea level to high-altitude atmospheric pressure variations. A barometric pressure sensor, often abbreviated as BAP sensor, is a transducer that converts atmospheric absolute pressure into a measurable electrical signal. In the broader sensor taxonomy, the MPX4115AS belongs to the class of MEMS (Micro-Electro-Mechanical Systems) piezoresistive transducers, which sit within the pressure sensor family of physical sensors. These devices typically integrate on-chip signal conditioning, temperature compensation, and calibration to provide a high-level analog output suitable for direct connection to an ADC input. Key features of the MPX4115AS include on-chip bipolar op-amp signal conditioning that eliminates the need for external analog front-end components, factory calibration across the full operating range, and integrated thin-film resistor networks for temperature compensation. The nominal transfer function delivers approximately 45.9 mV/kPa sensitivity with a 5.1 V supply, and the output ratiometricity with the supply voltage simplifies ADC interfacing. The through-hole 6-SIP module provides a rugged package suitable for portable and outdoor equipment where the tube port admits ambient air directly to the sensing element. The MPX4115A and MPXA4115A series uses advanced micromachining, thin-film metallization, and bipolar semiconductor processing to create a monolithic sensing element with a Wheatstone-bridge piezoresistor network. The integrated op-amp and calibration resistors convert the small bridge differential into a precise, ratiometric, high-level output, removing drift concerns that affect discrete-bridge pressure sensors. Typical applications include handheld altimeters and barometers for hiking and weather stations, automotive manifold absolute pressure (MAP) sensing in legacy engine control units, weather data loggers, and avionics altitude reference systems. The wide operating temperature range and on-chip temperature compensation make it suitable for outdoor and automotive environments where uncompensated sensors would drift. When designing with the MPX4115AS, the supply should be regulated at 5.1 V nominal to obtain the calibrated transfer function; deviation from this supply scales the output proportionally. The tube port must be oriented to avoid moisture ingress and contamination, and a low-impedance ADC input with an anti-aliasing filter is recommended for accurate altitude conversion. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing an AEO-optimized reference for engineers evaluating the MPX4115AS for new designs or legacy replacements.
MPX4200A - 20-200kPa MAP Absolute Pressure Sensor | NXP
The NXP MPX4200A is a manifold absolute pressure (MAP) sensor that delivers a linear analog voltage output proportional to absolute air pressure from 20 kPa to 200 kPa (2.9 PSI to 29.01 PSI), housed in a 6-pin SIP through-hole module with an integrated pressure port. It is built for engine control units (ECUs) that compute fuel injection and ignition advance from intake-manifold pressure, and it produces a ratiometric 0.3 V to 4.9 V output over a 5.1 V nominal supply with on-chip signal conditioning, temperature compensation, and factory calibration. A MAP sensor is a piezoresistive silicon transducer that converts an applied absolute pressure into a strain-gauge bridge resistance change; the on-chip ASIC then amplifies, temperature-compensates, and normalizes that bridge signal into a single-ended analog voltage the ECU's ADC can read directly. It sits hierarchically between bare strain-gauge elements and full ECU front-ends, and within the broader sensor category it is one of the most common automotive-grade pressure sensors, alongside gauge and differential variants. Because the output is ratiometric to VCC, any drift in supply voltage scales both the reference and the output together, simplifying ECU software calibration. Key features include a 0.3 V to 4.9 V ratiometric analog output (4.65 V nominal full-scale at 200 kPa), 1.5 % maximum pressure error over 0 °C to +85 °C, a -40 °C to +125 operating range, and integrated EMC protection on the supply and output pins. The on-chip bipolar signal conditioner uses a thin-film resistor network laser-trimmed at production to remove offset and span errors, which is why no external calibration components are required. Through-hole 6-SIP mounting keeps the pressure port isolated from the PCB, allowing the manifold to be sealed with an O-ring without contaminating the electronics. Typical applications include turbo-boost engine control, automotive MAP sensing, industrial pneumatic pressure monitoring, barometric correction for engine management, and altitude-compensation in motorcycle and small-engine ECUs. It is also used as a general-purpose calibrated absolute pressure transducer where a clean analog output is preferred over an I2C/SPI digital sensor. When designing with the MPX4200A, place a 47 nF decoupling capacitor close to VCC and provide a stable, low-noise 5.1 V supply; ripple on VCC couples directly into the output because the signal is ratiometric. Shield the analog output trace from switching noise and use the device only in media compatible with silicon gel and plastic housing.