This document is the technical datasheet of MMA6280QT low cost capacitive micromachined accelerometer. The accelerometer has signal conditioning, a 1-pole low pass filter, temperature compensation and g-Select, which allows for the selection among 4 sensitivities. Zero-g offset full scale span and filter cut-off are factory set and require no external devices.
The MMA6280QT is a dual‑axis low‑g capacitive micromachined accelerometer with selectable sensitivities of 1.5 g, 2 g, 4 g and 6 g. It features ultra‑low current consumption (500 pA typical, 3 pA in sleep mode), a built‑in low‑pass filter, temperature compensation, and a 2.2 V‑3.6 V operating range, making it suitable for handheld, battery‑powered devices.
The datasheet details electrical characteristics, pin descriptions, PCB layout recommendations, and mechanical footprints for the 16‑lead QFN package. It also includes maximum ratings, dynamic and static acceleration behavior, and recommended design guidelines for both automotive and consumer applications.
| Supply Voltage | 2.2‑3.6 V |
|---|---|
| Supply Current (typical) | 500 µA |
| Sleep Mode Current | 3 pA |
| Sensitivity (1.5 g range) | 800 mV/g |
| Bandwidth (X‑axis) | 350 Hz |
The device offers four selectable sensitivities: 1.5 g, 2 g, 4 g, and 6 g via the g‑Select pins.
In sleep mode the accelerometer draws as little as 3 pA typical current.
The MMA6280QT operates from –40 °C to +105 °C.
A 6 mm × 6 mm footprint with a 0.1 mm solder‑mask opening and 0.025 mm stencil reduction is recommended.