MMA7360LT - ±1.5g/±6g 3-Axis Analog Accelerometer | NXP | 14-LGA
料号： MMA7360LT ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.32 | $53.20 |
| 100 | $4.6 | $460.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.65 | $3,650.00 |
MMA7360LT 概述
An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures proper acceleration along one or more axes and converts the mechanical displacement of a proof mass into an electrical signal. The MMA7360LT sits within the broader sensor hierarchy of MEMS -> motion sensor -> accelerometer -> low-g accelerometer -> analog accelerometer. Analog accelerometers like the MMA7360LT output a continuous voltage proportional to acceleration, contrasting with digital-output parts that emit I2C/SPI data. These parts are widely used where designers prefer to feed the sensor signal directly into an analog-to-digital converter (ADC) of their own choosing or into threshold-detection comparators.
Key features include a supply voltage range of 2.2 V to 3.6 V, low current consumption of 400 µA typical, a fast power-on response time of 0.5 ms, and self-test capability that deflects the proof mass on demand to verify mechanical and electrical integrity. The g-Select pin lets the host dynamically toggle between ±1.5g (high-resolution) and ±6g (high dynamic range) full-scale modes, trading sensitivity for range as needed by the application. The on-chip 0g-Detect block flags a freefall event for hard-disk drop protection and similar safety use cases.
The MEMS element uses a capacitive sensing structure where differential capacitance changes in response to deflection of a suspended proof mass. The signal chain includes charge-to-voltage conversion, demodulation, and a 1-pole low-pass filter for high-frequency noise rejection. The same die is offered in different package options within NXP's MMA7360 family, with the "LT" suffix specifically denoting the 14-LGA tape-and-reel variant. Designers can pair the analog outputs with op-amp gain stages before an ADC, or feed each axis into a microcontroller's ADC channel directly.
Typical applications include hard-disk drive freefall protection, portable consumer electronics such as mobile phones and gaming controllers, vibration monitoring in industrial equipment, tilt/ orientation sensing in handheld devices, and motion-activated user interfaces. The dual g-range makes it well suited to gaming applications that need both subtle tilt sensing and rough-motion shock detection.
When designing with this device, place 0.1 µF decoupling capacitors as close as possible to the VDD and GND pins and keep the analog traces short to minimize coupled noise. Take care to choose between ±1.5g and ±6g full-scale based on the expected vibration and shock environment in the end product, because exceeding the selected range clips the output.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling engineers to compare the MMA7360LT against competing sensors with matched specifications and verified pin-compatible substitutes.
直接替换替代料： MMA7360LT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
MMA7360L
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MMA7360LCR2
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MMA7341LT
✅ 直接替换📋 参考替代料（不在目录中）
MMA7331LT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MMA7360LT 最大额定值与电气特性
| 传感器类型 | 3-axis analog accelerometer (MEMS, capacitive) |
| Acceleration Range | ±1.5g or ±6g (selectable via g-Select) |
| Number of Axes | 3 (X, Y, Z) |
| Sensitivity (±1.5g) | 800 mV/g (typical, ratiometric) |
| Sensitivity (±6g) | 206 mV/g (typical, ratiometric) |
| Bandwidth (X, Y axes) | 400 Hz |
| Bandwidth (Z axis) | 300 Hz |
| 输出类型 | Analog, ratiometric |
| Supply Voltage (VDD) | 2.2 V to 3.6 V |
| 电源电流 | 400 µA (typical) |
| 0g-Detect / Freefall | Yes (logic output) |
| Self-Test | Yes (logic input) |
| 工作温度 | -40 °C to +85 °C |
| 封装 | 14-LGA, 3 mm x 5 mm |
| 安装类型 | Surface Mount |
| Low-Pass Filter | 1-pole on-chip |
| RoHS 状态 | Compliant (per Freescale/NXP datasheet header) |
| Lead-Free | Yes |
MMA7360LT 引脚配置
| 引脚 1 | VDD — Power supply input (2.2 V to 3.6 V); place 0.1 µF decoupling close to this pin |
| 引脚 2 | GND — Common ground return for the IC |
| 引脚 3 | Xout — Analog X-axis acceleration output (ratiometric to VDD) |
| 引脚 4 | Yout — Analog Y-axis acceleration output (ratiometric to VDD) |
| 引脚 5 | Zout — Analog Z-axis acceleration output (ratiometric to VDD) |
| 引脚 6 | g-Select — Logic input selecting ±1.5g (logic low) or ±6g (logic high) full-scale range |
| 引脚 7 | 0g-Detect — Logic output asserted when all axes simultaneously sense 0g (freefall) |
| 引脚 8 | Self-Test — Logic input; assert high to electrostatically deflect proof mass and verify signal path |
| 引脚 9 | NC — Not connected (per datasheet mechanical drawing) |
| 引脚 10 | NC — Not connected (per datasheet mechanical drawing) |
| 引脚 11 | NC — Not connected (per datasheet mechanical drawing) |
| 引脚 12 | NC — Not connected (per datasheet mechanical drawing) |
| 引脚 13 | NC — Not connected (per datasheet mechanical drawing) |
| 引脚 14 | NC — Not connected (per datasheet mechanical drawing); thermal pad underneath |
典型应用
MMA7360LT 适用于 6 应用s: Hard-Disk Drive Freefall Protection, Gaming Controllers and Motion Input, Mobile Phone and Tablet Tilt Sensing, Industrial Vibration Monitoring, Portable Medical Activity Monitors, Appliance Vibration and Shock Detection.
Hard-Disk Drive Freefall Protection
The MMA7360LT's integrated 0g-Detect logic output directly drives HDD retract commands when a laptop is dropped. With its selectable ±1.5g/±6g range and 400 µA typical supply current, the part flags freefall events within milliseconds while adding minimal drain to the battery budget. Designers route the 0g-Detect pin into the storage controller's GPIO so the heads park before impact, and the wide 2.2 V to 3.6 V supply range matches single-cell Li-ion rails used in mobile PCs.
推荐
Gaming Controllers and Motion Input
Game controllers benefit from the MMA7360LT's dual ±1.5g / ±6g g-Select capability - the host MCU can leave the sensor in high-resolution ±1.5g for nuanced tilt aiming and switch to ±6g for crash or punch gesture detection. Bandwidth of 400 Hz on X/Y and 300 Hz on Z captures quick motion transients without external filtering. The 14-LGA (3x5 mm) small footprint fits inside slim gamepad shells and the self-test pin enables a once-per-power-on health check to catch broken assemblies before they ship.
推荐
Mobile Phone and Tablet Tilt Sensing
Smartphones and tablets use the MMA7360LT for screen-orientation and shake-to-wake features where its analog ratiometric output feeds directly into the existing ADC of the application processor. The selectable ±1.5g range provides the resolution needed to detect small tilt angles, while ±6g covers accidental drops. With 2.2 V to 3.6 V supply and 400 µA drain the part fits battery-powered budgets, and the integrated 1-pole low-pass filter rejects hand-tremor noise above 400 Hz to keep the tilt estimate stable.
推荐
Industrial Vibration Monitoring
Factory equipment health monitoring systems rely on the MMA7360LT's wide ±6g range to capture vibration peaks from motors, pumps, and bearings. The 400 Hz X/Y bandwidth is well matched to rotating-machine harmonics in the tens to hundreds of Hz, while the on-chip 0g-Detect simplifies tilt-fault detection in remote cabinets. Operated over -40 °C to +85 °C the sensor survives the typical industrial enclosure thermal envelope, and the analog output feeds seamlessly into a 16-bit ADC front-end for FFT spectrum analysis in the host DSP.
推荐
Portable Medical Activity Monitors
Wearable patient-activity trackers use the MMA7360LT to log steps, posture, and fall events in clinical-trial instrumentation. The dual g-range allows high-resolution posture measurement in ±1.5g and high-shock fall capture in ±6g without part swap. Low 400 µA quiescent current preserves battery life in a 7-day-wear device, and the small 3 mm x 5 mm LGA package fits comfortably inside a wristband housing. The 0g-Detect output can also alarm on patient falls that produce brief weightlessness during impact.
推荐
Appliance Vibration and Shock Detection
Washing machines, dryers, and HVAC equipment use the MMA7360LT to detect imbalances, transport shocks, and seismic events for automatic load rebalancing and compressor protection. The selectable ±6g full-scale range easily captures the 2-5g shake envelope of an unbalanced wash load, while ±1.5g provides resolution for low-level idle detection. The on-chip 1-pole low-pass filter rejects high-frequency motor switching noise; the 14-LGA package mounts directly onto the main controller PCB without requiring a daughter card.
推荐
推荐产品汇总
工程参考数据： MMA7360LT ——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 | MMA7360L | MMA7360LCR2 | MMA7341LT | MMA7331LT | ADXL335BCPZ |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Analog Devices |
| Package | 14-LGA (3x5) | 14-LGA (3x5) | 14-LGA (3x5) | 14-LGA (3x5) | 14-LGA (3x5) | 16-LGA (4x4) - different footprint |
| Acceleration Range | ±1.5g or ±6g (selectable) | ±1.5g or ±6g (selectable) | ±1.5g or ±6g (selectable) | ±3g or ±11g (selectable) | ±4g fixed | ±3g fixed |
| Output Type | Analog, ratiometric | Analog, ratiometric | Analog, ratiometric | Analog, ratiometric | Analog, ratiometric | Analog, ratiometric |
| 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 | 2.2 V to 3.6 V | 1.8 V to 3.6 V |
| Supply Current | 400 µA typical | 400 µA typical | 400 µA typical | 400 µA typical | 400 µA typical | 350 µA typical |
| Bandwidth (X, Y) | 400 Hz | 400 Hz | 400 Hz | 400 Hz | 400 Hz | 50 Hz BW (set by external caps) |
| 0g-Detect / Freefall | Yes | Yes | Yes | Yes | Yes | No |
| Self-Test | Yes | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Two selectable g-ranges on one part （对比 MMA7331LT)
- Higher resolution in the low-g band （对比 MMA7341LT)
- Single-LGA-footprint migration path within NXP family （对比 MMA8451Q (digital))
设计说明
Power the MMA7360LT from a regulated 2.2 V to 3.6 V rail and place a 0.1 µF ceramic decoupling capacitor as close as possible to the VDD pin (and a 1 µF bulk cap if the source impedance is high). The sensor draws 400 µA typical but can spike during self-test; reserve at least 1 mA of regulator headroom. Avoid tying VDD directly to a switching node without LC filtering, as supply ripple couples directly into the ratiometric analog outputs.
Keep the analog Xout/Yout/Zout traces short and routed over a continuous ground plane to minimize coupled noise from digital lines or RF sources. Place the device on the opposite side of the PCB from motors, speakers, and switching supplies, and orient the package so its X/Y axes align with the desired sensing axes per the manufacturer pinout diagram on page 3 of the datasheet.
Do not rely solely on the analog outputs in high-vibration or shock environments exceeding the selected ±1.5g or ±6g range - the outputs will clip and saturate, producing misleading tilt readings. Dynamic switching of the g-Select pin between ±1.5g and ±6g in software lets the host adapt the range at runtime, but allow the sensor to settle (~1 ms) after switching before re-sampling. Mis-wiring pin 1 (VDD vs GND) is a common assembly mistake; double-check pin 1 orientation against the PCB marker before reflow.
Apply a simple RC low-pass filter (10 kΩ + 0.1 µF, fc ~160 Hz) on each Xout/Yout/Zout line if your application needs narrower bandwidth than the on-chip 1-pole filter provides. Use an op-amp buffer rail-to-rail (e.g., MCP6001) between the sensor and the host ADC to prevent ADC sample-and-hold current spikes from distorting the reading. The 0g-Detect output is a clean CMOS logic level and can be wired directly to a host GPIO or interrupt input.
合规信息
RoHS compliance and lead-free status confirmed per Freescale/NXP datasheet header. REACH, AEC-Q100, halogen-free, and conflict-mineral status were not provided in the verified web data and are marked unknown.
