MMA7260Q - ±1.5/2/4/6g 3-Axis Accelerometer 16-QFN | NXP
料号： MMA7260Q ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.6 | $76.00 |
| 100 | $6.4 | $640.00 |
| 500 | $5.5 | $2,750.00 |
| 1,000 | $4.75 | $4,750.00 |
MMA7260Q 概述
An accelerometer is a MEMS (Micro-Electro-Mechanical Systems) sensor that measures proper acceleration along one or more axes, converting it into a proportional analog or digital output. The MMA7260Q belongs to the broader class of motion sensors and inertial measurement devices, sitting in the hierarchy: 3-axis accelerometer → MEMS accelerometer → motion sensor → inertial sensor. It is widely used wherever low-g tilt, vibration, shock, or motion detection must be sensed without the complexity of a full IMU.
Key features include factory-calibrated zero-g offset and full-scale span requiring no external trim components, four selectable g-ranges via two logic inputs (g-Select1 and g-Select2), a low current consumption of approximately 500 µA in active mode and 3 µA in Sleep Mode, and a single-supply operation from 2.2 V to 3.6 V. The integrated 1-pole low-pass filter has a bandwidth of 350 Hz on the X and Y axes and 150 Hz on the Z axis. The 16-QFN package provides a small 6 mm × 6 mm footprint suitable for space-constrained PCB designs.
Architecturally, the device uses a surface-micromachined capacitive sensing cell with a dedicated ASIC for amplification, demodulation, temperature compensation, and filtering. The capacitive sensing principle delivers good noise performance and stability across its full operating temperature range of -20 °C to +85 °C, while the g-Select multiplexing allows the same silicon to serve multiple application ranges without mechanical reconfiguration.
Typical applications for the MMA7260Q include HDD free-fall detection, portable consumer electronics tilt sensing, motion-activated user interfaces, vibration monitoring in appliances, gaming controllers, and industrial equipment health monitoring. The selectable ranges make it well suited to both high-resolution tilt measurement (using the ±1.5g range) and shock or free-fall detection (using the ±6g range).
When designing with this part, note that the device is specified for 2.2 V to 3.6 V single-supply operation only; for 5 V microcontroller systems an external LDO is required. Place the decoupling capacitor as close as possible to the supply pin, route the analog output traces away from switching nodes, and respect the g-Select logic timing during range switching to avoid transient invalid outputs.
This page synthesizes distributor pricing, drop-in alternative options, and practical MEMS design notes not found in the manufacturer datasheet alone.
直接替换替代料： MMA7260Q ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MMA7260Q （相同外形与封装尺寸） ——差异在于 Output Type, Package, RoHS Status, Sensor Type, Acceleration Range.
快速对比工具——选择替代料号进行并排对比：
MMA7260QT
✅ 直接替换✓ 有现货
$3.25 / 个
查看数据手册 →MMA7261QT
✅ 直接替换📋 参考替代料（不在目录中）
MMA7260Q-2
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MMA7455L
✅ 直接替换📋 参考替代料（不在目录中）
MMA7260Q 最大额定值与电气特性
| 传感器类型 | 3-axis capacitive MEMS accelerometer |
| Acceleration Range | ±1.5g / ±2g / ±4g / ±6g (selectable) |
| Number of Axes | X, Y, Z |
| Sensitivity (g-Select) | 4 user-selectable ranges via g-Select1/g-Select2 logic inputs |
| Bandwidth (X, Y axes) | 350 Hz |
| Bandwidth (Z axis) | 150 Hz |
| 电源电压 | 2.2 V to 3.6 V |
| 输出类型 | Analog, three channels |
| Zero-g Offset | Factory calibrated |
| Temperature Compensation | Built-in |
| Filter Type | 1-pole low-pass |
| 工作温度范围 | -20 °C to +85 °C |
| 封装 | 16-QFN (6 mm × 6 mm) |
| 安装类型 | Surface Mount |
| Sleep Mode | Yes |
| RoHS 状态 | Non-Compliant (contains lead) |
MMA7260Q 16-qfn (6 mm × 6 mm) 引脚配置指南
MMA7260Q（16-qfn (6 mm × 6 mm) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： MMA7260Q.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MMA7260Q 适用于 6 应用s: HDD Free-Fall Detection, Portable Consumer Tilt Sensing, Motion-Activated User Interfaces, Appliance Vibration Monitoring, Industrial Equipment Health Monitoring, Gaming and Controller Motion Sensing.
HDD Free-Fall Detection
The MMA7260Q is well suited to hard-disk drive free-fall protection because its selectable ±6g range provides enough headroom to detect hard accelerations while the integrated 1-pole low-pass filter at 350 Hz X/Y and 150 Hz Z suppresses mechanical noise from the chassis. Placed near the HDD connector, the device samples all three axes simultaneously and a host microcontroller triggers a head-park routine when any axis exceeds a programmable threshold; the ±6g range gives approximately 100 mg/count at 10-bit resolution, sufficient margin to detect drops while remaining robust to typing-level vibrations. Sleep Mode (3 µA) makes it practical for battery-powered mobile storage devices.
推荐
Portable Consumer Tilt Sensing
For handheld consumer products such as remote controls, toys, and personal media players, the MMA7260Q's ±1.5g low-g range delivers the highest resolution for tilt measurement, with the g-Select logic inputs allowing designers to switch ranges on demand. Typical circuits place the device near the product center-of-mass and route the X/Y analog outputs to the host ADC; the 350 Hz X/Y bandwidth captures brisk tilt gestures while ignoring sensor noise. The 6 mm × 6 mm QFN footprint eases placement in space-constrained enclosures, and the 2.2 V to 3.6 V supply range supports direct connection to a Li-ion or two-AAA battery stack.
推荐
Motion-Activated User Interfaces
Gesture and motion-triggered user interfaces benefit from the MMA7260Q's wide dynamic range and fast wake-up from Sleep Mode (less than 1 ms typical). The device can sit in 3 µA Sleep Mode until motion is detected, then wake the host microcontroller for gesture decoding; this power profile makes the part attractive for battery-driven wearables and IoT devices. The three analog outputs let the host perform tap, double-tap, and orientation detection in firmware without complex state-machine hardware. With the 16-QFN footprint, it fits into compact wearable enclosures.
推荐
Appliance Vibration Monitoring
White goods such as washing machines and refrigerators employ the MMA7260Q for vibration and unbalance monitoring during spin cycles. The ±6g range covers the high-G shock loads that occur during bearing failure, while the ±1.5g range provides resolution for routine unbalance measurements. The Z-axis bandwidth of 150 Hz is a natural match for mechanical vibration spectra, and the integrated temperature compensation maintains calibration across the appliance's thermal envelope. Analog outputs feed a low-cost MCU ADC for predictive-maintenance algorithms.
推荐
Industrial Equipment Health Monitoring
In factory environments, the MMA7260Q performs low-cost vibration analysis on pumps, fans, and small motors. The selectable range scales the output for either ISO-10816 vibration envelope compliance at ±1.5g/±2g or shock sensing during fault events at ±6g. The 16-QFN industrial-grade package withstands the typical 0 °C to 70 °C equipment-compartment temperatures, and the analog outputs simplify integration into legacy PLC analog-input modules. The Sleep Mode enables battery-powered wireless sensor nodes that monitor unpowered equipment intermittently.
推荐
Gaming and Controller Motion Sensing
Game controllers and pointing devices historically used the MMA7260Q to capture fast motion gestures because the 350 Hz X/Y bandwidth responds to abrupt player movement without aliasing. The selectable range lets designers trade resolution against motion magnitude for casual versus competitive gaming profiles. The 6 mm × 6 mm QFN integrates cleanly into compact controller enclosures, and the low active current of about 500 µA preserves battery life across long play sessions. Tap-to-wake via interrupt logic adds quick-resume behaviour favored in handheld gaming platforms.
推荐
推荐产品汇总
工程参考数据： MMA7260Q ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MMA7260QT | MMA7261QT | MMA7260Q-2 | MMA7455L | ADXL335 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Analog Devices |
| Package | 16-QFN (6x6) | 16-QFN (6x6) | 16-QFN (6x6) | 16-QFN (6x6) | 16-QFN (6x6) | 16-LFCSP (4x4) |
| Sensor Type | 3-axis analog MEMS | 3-axis analog MEMS | 3-axis analog MEMS | 3-axis analog MEMS | 3-axis digital MEMS (I2C/SPI) | 3-axis analog MEMS |
| Acceleration Range | ±1.5/2/4/6g selectable | ±1.5/2/4/6g selectable | ±2.5/3.3/6.7/10.5g selectable | ±1.5/2/4/6g selectable | ±2/4/8g selectable | ±3g fixed |
| Supply Voltage | 2.2 V to 3.6 V | 2.2 V to 3.6 V | 2.2 V to 3.6 V | 2.2 V to 3.6 V | 2.4 V to 3.6 V | 1.8 V to 3.6 V |
| Bandwidth (X/Y) | 350 Hz | 350 Hz | 350 Hz | 350 Hz | configurable digital filter | 1600 Hz (much wider) |
| Output Type | Analog | Analog | Analog | Analog | Digital I2C/SPI | Analog |
| RoHS Status | Non-Compliant | Non-Compliant | Non-Compliant | Non-Compliant | Compliant | Compliant |
| Operating Temperature Range | -20 °C to +85 °C | -20 °C to +85 °C | -20 °C to +85 °C | -20 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
关键差异点
- User-selectable g-range without hardware changes （对比 ADXL335)
- Integrated Sleep Mode for ultra-low-power battery operation （对比 MMA7455L)
- Factory-calibrated zero-g offset and full-scale span （对比 Generic MEMS modules)
设计说明
Estimated: at 3.3 V VDD, the MMA7260Q draws approximately 500 µA active; with a 3 µA Sleep Mode, a battery-powered design can use a Sleep/wake cycle calculated as t_sleep * 3 µA + t_active * 500 µA to minimize average current. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin, plus a 10 µF bulk reservoir near the analog ground. For 5 V microcontroller projects, add an external LDO such as the NXP TLV1117-33 to step 5 V to 3.3 V before the sensor supply.
Route the analog X, Y, Z output traces as short as possible, away from switching DC-DC converter inductors and digital clocks. Keep a solid ground plane under the device with no cuts directly below the MEMS sensing cell; mechanical stress from PCB flex near the package can shift zero-g bias. Maintain symmetric copper pours around the package to balance thermal expansion and minimize temperature-induced offset drift.
Critical: do NOT exceed 3.6 V on VDD - the MMA7260Q is a 3.3 V part and overvoltage will damage the ESD structures. Critical: when changing the g-Select1/g-Select2 logic inputs, allow at least one sample period before trusting the output as the internal filter and demodulator require settling time. Common pitfall: the device is RoHS non-compliant and contains lead; do not specify it for new RoHS-required designs without an explicit exemption.
The integrated temperature compensation is factory calibrated across -20 °C to +85 °C, eliminating the need for host-side temperature compensation in most designs. If your enclosure exceeds 85 °C ambient, derate the g-Select ranges accordingly or move to the MMA7361L which extends the operating range. Thermal gradients across the PCB during high-current switching events can induce transient zero-g offset shifts; isolate the accelerometer from heat sources.
合规信息
Per manufacturer datasheet: RoHS non-compliant, contains lead. Not AEC-Q100 qualified. New designs should select the RoHS-compliant MMA7361L or MMA845x family instead.
