NXP Semiconductors MMA6260Q

Overview

MMA6260Q from Freescale Semiconductor is a ±1.5 g dual-axis capacitive micromachined accelerometer with integrated signal conditioning, 50 Hz bandwidth, 1.2 mA supply current, and ratiometric linear output. It delivers 800 mV/g sensitivity, 1.8 mV_RMS noise (0.1 Hz–1 kHz), and self-test capability in a 6 mm × 6 mm QFN-16 package - used for tilt monitoring and freefall detection in portable electronics.

For engineers reviewing the MMA6260Q datasheet, MMA6260Q pinout, MMA6260Q application, or MMA6260Q equivalent, this page provides verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for motion-sensing system integration.

Technical Context

The MMA6260Q integrates a surface-micromachined polysilicon g-cell with a dedicated ASIC featuring switched-capacitor sensing, on-die temperature compensation, and a factory-trimmed 1-pole low-pass filter. Its analog outputs (XOUT/YOUT) are ratiometric to VDD and require no external components for basic operation.

Self-test is initiated via a logic-high ST input, generating electrostatic deflection of the movable plate; response is verified by observing ~0.9×VDD output swing within 2.0 ms. Power-up stabilization completes in 14 ms, and transverse sensitivity remains ≤±5% FSO across orthogonal axes.

Key Specifications

Pinout & Package

Package: 16-lead QFN (Case 1477-02), 6 mm × 6 mm × 1.98 mm, exposed thermal pad (flag) connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMA6260Q, MMA6261Q trades noise floor for bandwidth while retaining identical pinout and supply characteristics; ADXL202E offers wider dynamic range and lower quiescent current but demands additional signal conditioning and firmware overhead.

Availability

MMA6260Q is available at Aetrix Electronics and suitable for tilt monitoring, freefall detection, appliance control, and vibration monitoring requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MMA6260Q 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 analog solutions for automotive, industrial, and consumer markets.

The MMA6260Q belongs to Freescale's micromachined accelerometer product line, designed specifically for cost-sensitive, low-power motion-sensing applications requiring factory-calibrated analog outputs and integrated self-test.

FAQ

What is the operating voltage range for the MMA6260Q?

The MMA6260Q operates from 2.7 V to 3.6 V DC. Within this range, it functions as a fully calibrated linear accelerometer with ratiometric output. Operation below 2.7 V or above 3.6 V may yield linear output but is not guaranteed to meet specification. The MMA6260Q datasheet specifies 3.3 V as the typical nominal supply, where zero-g offset is 1.65 V and sensitivity is 800 mV/g.

Does the MMA6260Q require external components for basic operation?

No external components are required for basic operation of the MMA6260Q. Its onboard signal conditioning, temperature compensation, and 50 Hz low-pass filter are factory-set. However, best practice mandates a 0.1 µF ceramic capacitor between VDD and VSS, plus an RC filter (1.0 kΩ + 0.1 µF to ground) on each output (XOUT/YOUT) to suppress switched-capacitor clock noise - both specified in the MMA6260Q application notes.

How does the self-test function work on the MMA6260Q?

The MMA6260Q self-test applies a calibrated electrostatic force to the movable g-cell plate via the ST pin. When ST is driven high (≥0.7×VDD), the resulting deflection produces a proportional output swing of ~0.9×VDD on XOUT and/or YOUT. This verifies mechanical integrity of the sensor element and electrical functionality of the entire signal chain - all within 2.0 ms - without requiring external test fixtures or motion sources.

What is the significance of ratiometric output in the MMA6260Q?

Ratiometric output means both zero-g offset and sensitivity scale linearly with VDD. For example, at 3.3 V supply, zero-g = 1.65 V and sensitivity = 800 mV/g; at 3.0 V, zero-g ≈ 1.5 V and sensitivity ≈ 727 mV/g. This allows the MMA6260Q to share the same VDD rail as an ADC's reference voltage, inherently canceling supply-induced errors in digitized acceleration values - a key advantage in resource-constrained microcontroller systems.

Can the MMA6260Q be used in high-shock environments like portable tool monitoring?

Yes - the MMA6260Q is rated for ±2000 g mechanical shock and has demonstrated robust survivability in drop-tested consumer electronics. Its surface-micromachined polysilicon structure and hermetic wafer-level packaging provide mechanical resilience far exceeding its ±1.5 g measurement range. In portable tool monitoring, it reliably captures transient impact signatures while maintaining calibration stability post-event, as confirmed in Freescale's reliability testing reports for the MMA6260Q series.