NXP Semiconductors MMA7260QR2

Overview

MMA7260QR2 from Freescale Semiconductor is a ±1.5g–±6g three-axis capacitive micromachined accelerometer with integrated signal conditioning, factory-trimmed 1-pole low-pass filter, temperature compensation, and g-Select sensitivity switching. It delivers ratiometric analog outputs (XOUT/YOUT/ZOUT), operates from 2.2 V to 3.6 V, draws 500 μA active current or 3 μA in Sleep Mode, and is housed in a 6 mm × 6 mm × 1.45 mm QFN-16 package. It is deployed in handheld electronics for freefall detection, motion-based UI control, and tilt compensation.

For engineers reviewing the MMA7260QR2 datasheet, MMA7260QR2 pinout, MMA7260QR2 application, or MMA7260QR2 equivalent, key selection criteria include selectable full-scale range (1.5g/2g/4g/6g), 800 mV/g sensitivity at 1.5g, 350 Hz XY bandwidth, 150 Hz Z bandwidth, and QFN-16 thermal/mechanical compatibility with space-constrained PCB layouts.

Technical Context

The MMA7260QR2 integrates dual polysilicon g-cells per axis with switched-capacitor readout ASICs, enabling direct voltage output proportional to acceleration. Its internal EEPROM trims zero-g offset, full-scale span, and filter cutoff-no external components required.

g-Select logic (pins 1 & 2) configures gain digitally: 00 = 1.5g (800 mV/g), 01 = 2g (600 mV/g), 10 = 4g (300 mV/g), 11 = 6g (200 mV/g). Sleep Mode (pin 12 low) disables analog outputs and reduces current to 3 μA while preserving configuration state.

Key Specifications

Pinout & Package

Package: 16-lead QFN (6 mm × 6 mm × 1.45 mm), case 1622-02, Pb-free terminations, exposed die pad internally connected to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-axis analog-output accelerometer applications.

Compared with ADXL335BCPZ and KXSC7-2050, the MMA7260QR2 uniquely balances analog simplicity, selectable sensitivity, and QFN-16 footprint-making it optimal for cost-sensitive, battery-powered designs requiring rapid analog integration without firmware overhead.

Availability

MMA7260QR2 is available at Aetrix Electronics and suitable for laptop freefall protection, smartphone motion UI, pedometer activity tracking, and navigation tilt compensation requiring stable component supply and long-term manufacturability.

Supply support for MMA7260QR2 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) is a fabless semiconductor company specializing in embedded processing, sensors, and connectivity solutions for automotive, industrial, and consumer markets.

The MMA7260QR2 belongs to Freescale's legacy analog MEMS accelerometer product line, designed specifically for low-cost, low-power motion sensing in handheld and portable electronics where analog output and minimal external components are critical.

FAQ

What is the pin-compatible replacement for MMA7260QR2?

The MMA7260QR2 has no documented pin-compatible replacement. While the MMA7260QT shares identical pinout and electrical specifications, it differs only in packaging (tray vs. tape-and-reel); the MMA7260QR2 remains the sole tape-and-reel variant. No other manufacturer offers a drop-in QFN-16 3-axis analog accelerometer with g-Select functionality and matching pin assignments.

Does MMA7260QR2 require external passive components for basic operation?

No, the MMA7260QR2 requires no external passive components for core functionality. Its factory-trimmed zero-g offset, full-scale span, and 1-pole low-pass filter are fully integrated. Only a 0.1 μF ceramic capacitor on VDD–VSS is recommended for power supply decoupling; RC filters on outputs are optional for clock noise suppression.

How does the g-Select feature affect the MMA7260QR2's sensitivity and bandwidth?

The g-Select feature changes only the gain stage: 1.5g mode gives 800 mV/g, 2g gives 600 mV/g, 4g gives 300 mV/g, and 6g gives 200 mV/g. Bandwidth remains fixed at 350 Hz (XY) and 150 Hz (Z) regardless of range selection-ensuring consistent transient response across all modes.

What is the maximum mechanical shock the MMA7260QR2 can survive without damage?

The MMA7260QR2 is rated for ±5000 g mechanical shock across all axes, as specified in its Absolute Maximum Ratings table. This rating applies to short-duration (<1 ms) transient events such as drop impacts onto concrete, making it suitable for ruggedized portable electronics.

Is MMA7260QR2 RoHS-compliant and lead-free?

Yes, the MMA7260QR2 uses Pb-free terminations and complies with RoHS Directive 2011/65/EU. Its QFN-16 package (case 1622-02) is explicitly designated as environmentally preferred in Freescale's documentation, with no lead content in solderable surfaces or internal construction.