NXP Semiconductors MPX2100D

Overview

MPX2100D from Freescale Semiconductor is a differential silicon piezoresistive pressure sensor with on-chip temperature compensation and laser-trimmed calibration, delivering ±0.25% linearity (end-point method), 40 mV full-scale span at 10 V supply, and operation over 0–100 kPa pressure range. It serves as a ratiometric analog output transducer in closed-loop pressure monitoring systems for industrial and medical equipment.

For engineers reviewing the MPX2100D datasheet, MPX2100D pinout, MPX2100D application, or MPX2100D equivalent, this page provides verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The MPX2100D integrates a monolithic silicon diaphragm with embedded strain gauges and thin-film resistor networks for direct pressure-to-voltage conversion. Its internal circuitry includes laser-trimmed span/offset calibration and passive temperature compensation circuitry optimized for 0°C to +85°C operation.

It operates ratiometrically with supply voltage (10 V typical, up to 16 V max), exhibits 1.0 ms response time (10–90%), and maintains ±0.1%VFSS pressure hysteresis across its 0–100 kPa range. Output polarity follows P1 > P2 differential pressure convention, with ground-referenced dual-ended output pins.

Key Specifications

Pinout & Package

MPX2100D uses the Unibody Package Case 344-15 - a 4-pin, stainless-steel-capped, gel-isolated ceramic carrier with silicone die coating. Pin 1 is ground, Pin 2 is +VOUT, Pin 3 is +VS, and Pin 4 is −VOUT. The package is designed for PCB mounting with pressure port access on the stainless steel cap side (P1) and vacuum reference port (P2) on the opposite side.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential pressure transducer applications.

Compared with MPX2100AP and MPX5100DP, the MPX2100D offers superior noise rejection via differential output and compatibility with legacy 10 V excitation systems, while MPX2100AP trades differential capability for absolute reference integration and MPX5100DP replaces analog flexibility with integrated signal conditioning.

Availability

MPX2100D is available at Aetrix Electronics and suitable for pump/motor controllers, medical diagnostics equipment, and barometric data loggers requiring stable component supply, long-term calibration retention, and proven field reliability in industrial and healthcare settings.

Supply support for MPX2100D 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

Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of analog and mixed-signal sensors, microcontrollers, and RF solutions for automotive, industrial, and medical markets.

The MPX2100 series was developed specifically for high-accuracy, low-drift pressure sensing in safety-critical and maintenance-sensitive applications where on-chip temperature compensation and laser calibration reduce system-level calibration burden.

FAQ

What is the pressure type supported by the MPX2100D?

The MPX2100D is a differential pressure sensor configured for P1 > P2 operation, where pressure is applied to the stainless steel cap side (P1) and vacuum or reference pressure is applied to the opposite port (P2). It is not an absolute or gauge sensor-its output increases with rising differential pressure between these two ports, and it is explicitly designated as "D" for differential in the ordering matrix. This configuration is validated in the Pressure (P1)/Vacuum (P2) Side Identification Table and Figure 4 cross-section.

Does the MPX2100D require external signal conditioning?

Yes, the MPX2100D outputs a low-level differential analog signal (typically ±20 mV around midscale) and requires an instrumentation amplifier or precision differential ADC to convert to a usable voltage or digital value. Unlike integrated-output variants such as MPX5100DP, the MPX2100D contains no internal amplification or regulation-its design assumes external signal chain optimization for noise rejection and gain setting, as confirmed in the "Sensing Element" block diagram and Operating Characteristics table.

What is the meaning of ±0.25% linearity for MPX2100D?

The ±0.25% linearity specification for MPX2100D refers to end-point straight-line fit error over the full 0–100 kPa range, measured at midrange pressure and defined as deviation from the ideal linear transfer function Vout = Voff + sensitivity × P. This value is distinct from least-squares fit and represents worst-case nonlinearity used in error budgeting, as explicitly clarified in the Linearity section of the datasheet.

Can MPX2100D operate with supply voltages other than 10 V?

Yes, MPX2100D operates ratiometrically from 10 Vdc (typical) up to 16 Vdc (maximum), as specified in Table 1. Output voltage scales linearly with supply voltage-e.g., at 12 V, full-scale span becomes ~48 mV-enabling consistent performance across varying excitation sources. However, operation above 10 V may induce self-heating effects that increase error, per footnote 2 in the Operating Characteristics table.

Is MPX2100D RoHS compliant and lead-free?

The MPX2100D datasheet (Rev 10, 10/2008) predates mandatory RoHS enforcement for many Freescale products and does not declare RoHS or lead-free status. No Pb-free marking or compliance statement appears in the document, packaging drawings, or ordering information. For current compliance verification, consult NXP's official product change notices or contact Aetrix Electronics for traceable lot-level documentation.