NXP Semiconductors MMA2260DR2

Overview

MMA2260DR2 from Freescale Semiconductor is a ±1.5g, X-axis silicon capacitive micromachined accelerometer in SOIC-16 package, featuring integrated 2-pole Bessel low-pass filter (50 Hz typ), ratiometric analog output (1200 mV/g typ), and calibrated self-test functionality. It operates from –40°C to +105°C with 4.75–5.25 V supply and delivers 3.5 mV_RMS noise (0.1–1 kHz) for tilt and vibration monitoring in industrial and automotive aftermarket systems.

For engineers reviewing the MMA2260DR2 datasheet, MMA2260DR2 pinout, MMA2260DR2 application, or MMA2260DR2 equivalent, key selection considerations include its factory-trimmed zero-g offset, hermetically sealed wafer-level transducer, EPROM parity fault detection on STATUS pin, and compatibility with microcontroller A/D interfaces requiring stable ratiometric analog voltage output.

Technical Context

The MMA2260DR2 implements a surface-micromachined polysilicon g-cell with back-to-back capacitors, read via switched-capacitor CMOS ASIC. Its signal path includes integrator, gain stage, temperature-compensated trim, and 2nd-order Bessel filter - all fully internal, requiring no external components for calibration or filtering.

Self-test is activated by logic-high ST input, electrostatically deflecting a dedicated test plate to produce a known ∆V_ST = 0.4 V (typ) at VOUT; STATUS pin latches high on EPROM parity error and resets only upon rising edge of ST if fault clears.

Key Specifications

Pinout & Package

Package: 16-lead SOIC (Case No. 475-01), tape-and-reel packaging (R2 suffix). Pin layout matches MMA2260D family; pins 1–3 and 7 are redundant VSS; pins 9–13 are factory-trim only; pins 14–16 are NC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-axis analog-output accelerometer applications.

Compared with ADXL320ARZ and MMA8451Q, the MMA2260DR2 provides unique value in applications requiring factory-calibrated analog output, hardware self-test verification, and fault-latched STATUS signaling - all in a proven SOIC-16 package qualified for harsh automotive and industrial environments.

Availability

MMA2260DR2 is available at Aetrix Electronics and suitable for tilt monitoring, appliance control, and vibration monitoring applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MMA2260DR2 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 embedded processors and sensors, specializing in automotive, industrial, and consumer microcontrollers and analog ICs.

The MMA2260DR2 belongs to Freescale's legacy MMA series of micromachined accelerometers, engineered specifically for cost-sensitive, high-reliability analog-output applications in automotive aftermarket and industrial condition monitoring.

FAQ

What is the operating voltage range for the MMA2260DR2?

The MMA2260DR2 operates from 4.75 V to 5.25 V. Within this range, it functions as a fully calibrated linear accelerometer. Operation outside this window may yield linear output but without guaranteed calibration accuracy. A 0.1 µF decoupling capacitor is required at the VDD pin to ensure stable power delivery and minimize noise coupling into the analog signal path of the MMA2260DR2.

Does the MMA2260DR2 require external components for filtering or calibration?

No, the MMA2260DR2 integrates a 2-pole switched-capacitor Bessel filter with fixed 50 Hz –3 dB point and factory-trimmed zero-g offset and sensitivity stored in on-chip EPROM. No external resistors, capacitors, or calibration circuitry are needed. However, an external RC filter (1 kΩ + 0.01 µF) is recommended on VOUT to suppress switched-capacitor clock noise, as specified in the MMA2260DR2 application guidelines.

How does the self-test function work on the MMA2260DR2?

The MMA2260DR2 self-test applies a calibrated electrostatic force to the micromachined g-cell via a dedicated test plate when ST (Pin 8) is driven high. This produces a known output shift (∆V_ST = 0.4 V typ) at VOUT, verifying both mechanical mobility and electronic signal chain integrity. The STATUS pin also goes high during self-test, confirming proper latch behavior - a critical diagnostic step before deployment in trailer brake controls or sports diagnostics using the MMA2260DR2.

What does the STATUS pin indicate on the MMA2260DR2?

The STATUS pin on the MMA2260DR2 is an open-drain output that goes high to indicate either an active self-test or an EPROM parity error (odd number of bits). It latches high on parity fault and remains asserted until reset by a rising edge on ST - unless the fault persists. This dual-function pin enables real-time fault detection and diagnostics in safety-critical applications like appliance control or inclinometers using the MMA2260DR2.

Is the MMA2260DR2 RoHS-compliant and lead-free?

Yes, the MMA2260DR2 is RoHS-compliant and Pb-free, matching the functionality and electrical characteristics of its non-RoHS counterparts. The "R2" suffix denotes tape-and-reel packaging, and the device meets JEDEC standards for lead-free SOIC-16 assembly. Freescale confirmed full compatibility with standard reflow profiles and assured no performance degradation due to the Pb-free conversion - a key assurance for industrial and automotive aftermarket designs using the MMA2260DR2.