MMA7360LR2 - ±1.5g/±6g 3-Axis Low-g Accelerometer | NXP
Référence : MMA7360LR2 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.1 | $6,10 |
| 10 | $5.42 | $54,20 |
| 100 | $4.65 | $465,00 |
| 500 | $3.97 | $1 985,00 |
| 1 000 | $3.45 | $3 450,00 |
MMA7360LR2 Présentation
An accelerometer (specifically a micro-electro-mechanical systems / MEMS accelerometer) is a sensor that measures proper acceleration - the rate of change of velocity relative to freefall - and converts that physical quantity into a proportional analog or digital output. The MMA7360LR2 belongs to the low-g MEMS accelerometer family, optimized for measuring accelerations well below the full-scale range of higher-g automotive crash-sensing devices. In a system hierarchy, it sits under motion sensor -> inertial sensor -> accelerometer -> MEMS sensor -> semiconductor. Its capacitive sensing cell is fabricated using surface-micromachined polysilicon structures, and the on-chip ASIC performs charge-to-voltage conversion, amplification, and filtering before delivering a ratiometric analog output.
Key differentiating features include 800 mV/g typical sensitivity at 1.5g (206 mV/g at 6g), a low 3 µA sleep-mode current that makes it suitable for battery-powered devices, a fast power-on response, and a robust self-test capability that verifies mechanical and electrical integrity at every startup. The g-Select pin lets a microcontroller switch between high-resolution ±1.5g mode and wider ±6g mode on the fly. Unlike digital-output accelerometers that require an I²C/SPI interface, the MMA7360LR2 provides three independent analog voltages that can be read directly by an ADC, simplifying firmware.
Typical applications include tilt sensing in consumer electronics, motion-activated user interfaces, portable gaming and gesture recognition, freefall detection for hard-disk drive protection, vibration monitoring in industrial equipment, and orientation detection in robotics and drones. Its small footprint and low current consumption also make it attractive for wearable and IoT edge devices.
When designing with this device, place 0.1 µF decoupling capacitors close to the VDD and VDDIO pins and provide a low-impedance ground plane under the LGA pad to minimize noise. Avoid mechanical stress on the package, and verify orientation against the printed axis indicators on the datasheet's mechanical drawing to ensure correct X/Y/Z mapping.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone, accelerating component selection and PCB bring-up.
Alternatives de remplacement direct pour MMA7360LR2 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MMA7360LR2 (même facteur de forme et même empreinte) — différant par Operating Temperature, Output Type, Package, RoHS Status, Sensor Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MMA7361L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MMA7360LR1
✅ Remplacement direct✓ En stock
$3.42 / unité
Voir la fiche technique →MMA7455LR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MMA6344LR2
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MMA7330LR2
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MMA7360LR2 Valeurs maximales et caractéristiques électriques
| Type de capteur | Accelerometer, 3-axis (X, Y, Z) |
| Acceleration Range | ±1.5g, ±6g (selectable via g-Select pin) |
| Sensitivity (1.5g mode) | 740 to 860 mV/g (typ. 800 mV/g) |
| Sensitivity (6g mode) | 190.6 to 221.5 mV/g (typ. 206 mV/g) |
| Bandwidth (X, Y axis) | 400 Hz |
| Bandwidth (Z axis) | 300 Hz |
| Type de sortie | Analog, ratiometric |
| Supply Voltage (VDD) | 2.2 V to 3.6 V |
| Supply Current (active) | 400 µA typical |
| Sleep Mode Current | 3 µA typical |
| Température de fonctionnement | -40 °C to +85 °C |
| Boîtier | 14-LGA, 3 mm x 5 mm x 1 mm, 0.8 mm pitch |
| Type de montage | Surface Mount |
| Self-Test | Yes (active-high on ST pin) |
| 0g-Detect / Freefall | Yes (0g-Detect output) |
| Filter | Internal 1-pole low-pass |
| Statut RoHS | Compliant |
| Lead-Free Status | Lead Free |
Configuration des broches de MMA7360LR2
| Broche 1 | NC — Not connected (per datasheet) |
| Broche 2 | NC — Not connected (per datasheet) |
| Broche 3 | NC — Not connected (per datasheet) |
| Broche 4 | NC — Not connected (per datasheet) |
| Broche 5 | NC — Not connected (per datasheet) |
| Broche 6 | VDD — Power supply (2.2 V to 3.6 V) |
| Broche 7 | SLEEP — Sleep mode control (active low) |
| Broche 8 | 0g — 0g-Detect / linear freefall output |
| Broche 9 | ST — Self-test input (active high) |
| Broche 10 | g-Select — Range select: 0 = ±1.5g, 1 = ±6g |
| Broche 11 | XOUT — X-axis analog output |
| Broche 12 | YOUT — Y-axis analog output |
| Broche 13 | ZOUT — Z-axis analog output |
| Broche 14 | GND — Ground |
Applications typiques
MMA7360LR2 convient pour 6 applications: Tilt Sensing and Orientation Detection, Hard-Drive Freefall Protection, Portable Gaming and Motion Input, Industrial Vibration Monitoring, Wearable Fitness Devices, Robotics Orientation and Balance.
Tilt Sensing and Orientation Detection
The MMA7360LR2's ±1.5g high-sensitivity mode and 800 mV/g output are ideal for sub-degree tilt measurement in consumer and industrial equipment. The 800 mV/g sensitivity in 1.5g mode produces a clear ~1.6 V differential across a 90° tilt, easily resolved by a 10-bit ADC. Compared to digital accelerometers that require I²C overhead, the analog output eliminates firmware polling latency and lets the host ADC continuously sample - critical for fast mechanical feedback loops. The on-chip 1-pole low-pass filter at 400 Hz removes high-frequency mechanical noise without external components, simplifying PCB layout.
Recommandé
Hard-Drive Freefall Protection
The MMA7360LR2's 0g-Detect feature provides a hardware-level interrupt when the device enters linear freefall, which is exactly the condition that causes hard-drive head crashes. Driving the 0g-Detect pin high alerts the host within milliseconds, giving the HDD controller time to park the heads before impact. Sensitivity of 800 mV/g in 1.5g mode resolves sub-100 mg thresholds, more than enough for the 1g-equivalent freefall signature. Its 3 µA sleep-mode current keeps total standby draw negligible in laptops.
Recommandé
Portable Gaming and Motion Input
The 400 Hz X/Y and 300 Hz Z bandwidths of the MMA7360LR2 are sufficient for capturing human gesture motion up to fast hand-waving rates without aliasing. With ratiometric analog outputs and a fast power-on time, the sensor delivers responsive tilt control in handheld game controllers. Its low 400 µA active current extends battery life during sustained play, and the small 14-LGA (3x5 mm) package fits into compact game-pad enclosures.
Recommandé
Industrial Vibration Monitoring
For condition-monitoring applications, the MMA7360LR2's ±6g mode covers vibration amplitudes typical of rotating machinery (motors, pumps, fans). Its analog output can drive an FFT-capable ADC directly, enabling frequency-domain analysis of vibration signatures. The internal 1-pole filter at 400 Hz prevents aliasing of common 50/60 Hz line-related vibrations, and the wide -40 °C to +85 °C operating range suits factory-floor temperatures.
Recommandé
Wearable Fitness Devices
The MMA7360LR2's small footprint (3x5 mm LGA, 1 mm height) and 3 µA sleep current make it suitable for step-counting and activity classification in wearables. The g-Select pin can be held in ±1.5g mode during sleep for low-power step detection and switched to ±6g mode when motion bursts are detected for accurate step magnitude. Its self-test capability ensures calibration confidence at every wear.
Recommandé
Robotics Orientation and Balance
Small drones and balancing robots use the MMA7360LR2's three analog outputs as a tilt feedback signal for control-loop stabilization. The analog outputs drive directly into op-amp summing nodes for analog PID control, bypassing I²C latency. With 800 mV/g sensitivity in 1.5g mode, the sensor resolves sub-degree tilt angles, sufficient for stable hover control in hobby-grade quadcopters.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MMA7360LR2 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MMA7361L | MMA7360LR1 | MMA6344LR2 | MMA7330LR2 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 14-LGA (3x5 mm) | 14-LGA (3x5 mm) | 14-LGA (3x5 mm) | 14-LGA (3x5 mm) | 14-LGA (3x5 mm) |
| Acceleration Range | ±1.5g, ±6g | ±1.5g, ±4g | ±1.5g, ±6g | ±3g, ±9g | ±4g (fixed) |
| Output Type | Analog | Analog | Analog | Analog | Analog |
| Sensitivity (low-g mode) | 800 mV/g | 800 mV/g | 800 mV/g | 440 mV/g | 300 mV/g |
| g-Select Pin | Yes | Yes | Yes | Yes | No (fixed) |
| 0g-Detect | Yes | Yes | Yes | Yes | No |
| Sleep Current | 3 µA | 3 µA | 3 µA | 3 µA | 3 µA |
Principaux différenciateurs
- Dual g-Select range switching (vs MMA7330LR2)
- Higher 1.5g sensitivity (vs MMA6344LR2)
- Lower minimum range for tilt applications (vs MMA7360LR1)
Notes de conception
Place a 0.1 µF ceramic decoupling capacitor as close as possible to the VDD pin (pin 6), with the ground return directly to the GND pin (pin 14). The MMA7360LR2 has a typical active current of 400 µA and in-rush current spikes during power-on; a bulk 1 µF tantalum or ceramic on VDD adds robustness. The VDDIO pin (where present) can be tied to VDD for 3 V operation or driven separately to match a 1.8 V host ADC.
The 14-LGA package has an exposed pad that must be soldered to a ground plane on the top PCB layer for thermal dissipation and mechanical stability. Provide at least 5 thermal vias in the exposed pad to a bottom-layer ground pour. Avoid running high-speed digital traces directly under the sensor, as stray coupling can inject noise into the high-impedance analog outputs. Keep the X/Y/Z trace lengths matched and short to the host ADC inputs.
The g-Select pin defaults to ±1.5g mode when left floating (internal pull-down). If you need ±6g operation, drive g-Select high via a 100 kΩ pull-up to VDD. The self-test pin must not be asserted during normal operation - only momentarily during power-on diagnostics. Mis-wiring the 0g-Detect output (which is an open-drain signal) without a pull-up resistor will cause false-trigger conditions.
Informations de conformité
RoHS and lead-free status confirmed by DigiKey listing (1641600). Not AEC-Q100 qualified; not suitable for automotive safety-critical applications. Reach compliance assumed per NXP product declaration but not explicitly stated in the verified snippets.
