NXP Semiconductors KITMPXA6115AEVB

Overview

KITMPXA6115AEVB from NXP Semiconductors (formerly Freescale) is an evaluation board for the MPXA6115A absolute pressure sensor IC, designed to accelerate development of 15–115 kPa pressure measurement systems. It provides a ready-to-use platform with on-board signal conditioning, 5 V supply regulation, and analog output interface compatible with microcontroller ADCs. The board supports rapid prototyping in engine manifold absolute pressure (MAP), industrial control, and weather station applications.

For engineers reviewing the KITMPXA6115AEVB datasheet, KITMPXA6115AEVB pinout, KITMPXA6115AEVB application, or KITMPXA6115AEVB equivalent, this evaluation kit enables immediate functional validation of the MPXA6115A's ratiometric 4.5–4.7 V full-scale output, ±1.5% VFSS accuracy over 0 °C to 85 °C, and 1 ms response time - without custom PCB design or calibration setup.

Technical Context

The KITMPXA6115AEVB implements the MPXA6115A silicon piezoresistive transducer in a thermoplastic (PPS) small-outline package (Case 98ASB17756C), featuring on-chip bipolar op amp circuitry and thin-film resistor networks for temperature compensation across –40 °C to +125 °C. Its analog output is ratiometric to the 5.0 V supply, with 45 mV/kPa sensitivity and 0.133–0.268 V offset at minimum pressure.

The board includes a 100 nF decoupling capacitor, 51 kΩ pull-up, and 47 pF filter network per the manufacturer's recommended application circuit (Figure 4). It interfaces directly to host MCU ADCs via a buffered VOUT signal, eliminating external amplification or level-shifting requirements for standard 5 V logic systems.

Key Specifications

Availability

KITMPXA6115AEVB is available at Aetrix Electronics and suitable for engine control units (ECU), industrial process monitors, weather station barometers, and HVAC system diagnostics requiring stable component supply and rapid sensor integration.

Supply support for KITMPXA6115AEVB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors acquired Freescale in 2015 and continues to support legacy sensor products including the MPXxx6115A family. NXP is a global leader in secure connectivity solutions for automotive, industrial, and IoT applications.

The MPXxx6115A product line was engineered for high-reliability absolute pressure sensing in harsh environments - specifically targeting automotive manifold absolute pressure (MAP), industrial controls, and environmental monitoring where media resistance and wide-temperature operation are critical.

FAQ

What is the primary function of the KITMPXA6115AEVB evaluation board?

The KITMPXA6115AEVB evaluation board is a dedicated hardware platform for rapid functional validation and prototyping of the MPXA6115A absolute pressure sensor IC. It provides regulated 5 V power, signal conditioning, and direct analog output access - enabling engineers to verify sensor performance, calibrate ADC firmware, and integrate pressure measurement into microcontroller-based systems without custom PCB design. The KITMPXA6115AEVB eliminates the need for external op amps or voltage references when evaluating the MPXA6115A's ratiometric output behavior.

Does the KITMPXA6115AEVB support the full operating temperature range of the MPXA6115A sensor?

Yes, the KITMPXA6115AEVB is designed to operate across the full –40 °C to +125 °C ambient range specified for the MPXA6115A sensor IC. Its passive components and layout follow Freescale's recommended application circuit (Figure 4), and the board uses components rated for industrial temperature grades. This allows accurate characterization of the MPXA6115A's temperature-compensated output, including its ±0.25% VFSS offset stability after 1000 pressure/temperature cycles - as verified in the MPXA6115A datasheet Rev. 7.3.

Can the KITMPXA6115AEVB be used with microcontrollers other than Freescale/NXP devices?

Yes, the KITMPXA6115AEVB is vendor-agnostic and fully compatible with any microcontroller or data acquisition system that accepts a 0–5 V analog input and supplies a stable 5 V reference or regulated supply. Its VOUT signal is buffered and ratiometric to the 5 V supply, making it interoperable with STM32, PIC, ESP32, and Arduino platforms - provided the host ADC has ≥10-bit resolution and appropriate sampling rate for the MPXA6115A's 1 ms response time. No proprietary firmware or drivers are required for the KITMPXA6115AEVB.

What is the pressure media compatibility of the MPXA6115A sensor used on the KITMPXA6115AEVB?

The MPXA6115A sensor on the KITMPXA6115AEVB is qualified for use with dry air as the pressure medium. Its fluorosilicone gel die coat isolates the silicon diaphragm while transmitting pressure - providing resistance to high humidity and common automotive fluids. However, exposure to aggressive media (e.g., fuel, oil, solvents, or corrosive gases) may degrade long-term reliability. Freescale explicitly states that media other than dry air may adversely affect performance; users must consult NXP's factory for compatibility testing data before deploying the KITMPXA6115AEVB in non-dry-air applications.

Is the KITMPXA6115AEVB pin-compatible with other MPXxx6115A evaluation kits such as KITMPXH6115AEVB?

No, the KITMPXA6115AEVB is not pin-compatible with evaluation boards for other variants like KITMPXH6115AEVB. While all MPXxx6115A-series sensors share identical electrical functionality and pinout (VS/VOUT/GND + 5 DNC pins), their physical packages differ: the MPXA6115A uses Case 98ASB17756C (small outline), whereas MPXH6115A uses Case 98ARH99066A (super small outline). Consequently, the KITMPXA6115AEVB's footprint, mounting holes, and mechanical interface are specific to the MPXA6115A package - requiring separate board design for each variant.