MMA6263QR2 - ±1.5g Dual-Axis Analog Accelerometer | NXP / Freescale
MPN: MMA6263QR2 ⚠ Lần mua cuốiMMA6263QR2 Tóm tắt
A dual-axis analog accelerometer is a MEMS (micro-electro-mechanical systems) sensor that converts gravitational or inertial acceleration along two orthogonal axes into proportional analog signals. In the broader taxonomy it sits as: MEMS accelerometer -> accelerometer -> motion sensor -> inertial measurement unit (IMU) subsystem -> sensor IC -> semiconductor. Analog-output parts like the MMA6263QR2 feed directly into an ADC or op-amp stage, while digital-output counterparts integrate an ADC and expose I²C/SPI. The MMA6200 series, including the MMA6263QR2, is one of the earliest low-cost surface-mount dual-axis accelerometers and is widely found in legacy designs.
Key features include factory-trimmed zero-g offset and full-scale span, eliminating user calibration, an internal 1-pole low-pass filter for noise bandwidth control, on-chip temperature compensation, and self-test capability. The MMA6263QR2 also provides a g-select input allowing switching between ±1.5 g and ±6 g ranges via logic level pins. The sensor's monolithic silicon structure uses differential capacitance sensing, which inherently rejects temperature drift and common-mode supply noise.
Typical applications include tilt and orientation sensing in consumer products, free-fall detection in laptop hard drives, motion-activated user interfaces, vibration monitoring in industrial equipment, and appliance control. Its ±1.5 g range makes it particularly suited to gravity-referenced tilt measurement rather than high-shock event detection.
When designing with this part, note that the analog output is ratiometric to the supply voltage; using a precise 3.3 V LDO such as the LP2980 improves measurement repeatability. The exposed pad must be soldered to the board ground plane for thermal dissipation and mechanical stability, and the device is now considered legacy - sourcing new inventory requires attention to authorized distributor stock.
Bộ thay thế dễ dàng lắp đặt cho MMA6263QR2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MMA6263QR2 (cùng hình factor và footprint) — khác nhau ở RoHS Status, Output Type, Package, Self-Test, Sensitivity.
MMA6260QR2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MMA6261QR2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MMA6262QR2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MMA6200Q
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MMA6270QR2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MMA6263QR2 Tỷ lệ tối đa & tính chất điện
| Kiểu cảm biến | Accelerometer, Dual Axis (X, Y) |
| Acceleration Range | ±1.5 g (g-select to ±6 g) |
| Sensitivity | 740 mV/g to 860 mV/g (typ. 800 mV/g at 3.3 V) |
| Điện áp cung cấp | 3.3 V nominal (range per datasheet) |
| Kiểu đầu ra | Analog, ratiometric voltage |
| Bandwidth | 900 Hz sensor bandwidth |
| Low-Pass Filter | 1-pole on-chip, ~400 Hz cutoff |
| Zero-g Output (Typ) | 1.65 V (mid-supply) |
| Temperature Compensation | On-chip factory trimmed |
| Self-Test | Logic-level input on each axis |
| Hộp | 16-QFN-EP (6x6 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Lead Status | Contains Lead (legacy package) |
| Trạng thái RoHS | RoHS Compliant |
| Operating Principle | Capacitive micromachined (MEMS) |
Cấu hình chân MMA6263QR2
| Chân 1 | VDD — 3.3 V supply voltage |
| Chân 2 | NC — Not connected (per datasheet) |
| Chân 3 | NC — Not connected (per datasheet) |
| Chân 4 | XOUT — X-axis analog output |
| Chân 5 | GND — Ground reference |
| Chân 6 | YOUT — Y-axis analog output |
| Chân 7 | NC — Not connected (per datasheet) |
| Chân 8 | NC — Not connected (per datasheet) |
| Chân 9 | g-SEL1 — g-range select input 1 |
| Chân 10 | g-SEL2 — g-range select input 2 |
| Chân 11 | STX — X-axis self-test input |
| Chân 12 | STY — Y-axis self-test input |
| Chân 13 | NC — Not connected (per datasheet) |
| Chân 14 | NC — Not connected (per datasheet) |
| Chân 15 | NC — Not connected (per datasheet) |
| Chân 16 | REF — Internal reference / bypass |
| Chân EP | GND (EP) — Exposed pad - must be soldered to ground |
Ứng dụng tiêu biểu
MMA6263QR2 phù hợp cho 6 Áp dụngs: Laptop Hard-Drive Free-Fall Detection, Tilt and Orientation Sensing, Industrial Vibration Monitoring, Appliance Control and User Interface, Gaming and Motion-Controlled Peripherals, Security and Anti-Theft Tilt Sensing.
Laptop Hard-Drive Free-Fall Detection
The MMA6263QR2 fits laptop free-fall protection because its ±1.5 g primary range detects the near-zero acceleration signature of a drop before impact. The 900 Hz analog bandwidth tracks the brief free-fall transient, and the dual X/Y axes capture planar motion in either orientation. Place the sensor near the drive's center of mass and feed the analog outputs into the chipset's ADC; trigger HDD head parking when the output crosses a low-g threshold near 0 g. Compared with a digital-output accelerometer, the analog path allows the chipset to apply custom filtering, but it requires a precise ratiometric LDO such as the LP2980 to remove supply-noise coupling that would otherwise shift the zero-g reference.
Được đề xuất
Tilt and Orientation Sensing
The MMA6263QR2 is well suited to gravity-referenced tilt measurement because its ±1.5 g range captures the full 1 g gravity vector at any orientation, and the 800 mV/g sensitivity yields ~600 mV of usable signal across ±90° tilt. Its dual-axis X/Y sensing covers roll and pitch simultaneously. The on-chip 1-pole low-pass filter (~400 Hz cutoff) rejects vibration and hand tremor, and the ratiometric output means tilt readings remain accurate as long as the supply is stable. For best accuracy, sample at 10-50 Hz with an op-amp buffer feeding the MCU ADC; the analog topology lets them place the anti-alias filter externally for full control over the response.
Được đề xuất
Industrial Vibration Monitoring
The MMA6263QR2 fits industrial vibration monitoring because its 900 Hz analog bandwidth covers the dominant spectral content of most rotating-equipment vibrations (motors, pumps, fans) where faults appear in the 10-500 Hz band. The ±1.5 g primary range suits steady-state vibration amplitude, while the g-select to ±6 g captures impact transients. Mount the sensor on the equipment housing with the exposed pad thermally tied to a ground pour for stable zero-g offset. Unlike a digital-output accelerometer that quantizes the signal, the analog MMA6263QR2 lets the engineer apply analog FFT analysis directly, preserving spectral detail that 8/10-bit ADCs would otherwise smear.
Được đề xuất
Appliance Control and User Interface
The MMA6263QR2 fits gesture and tilt-based user interfaces in white goods because its dual X/Y analog outputs detect tap, tilt, and shake gestures used to control washers, dryers, and ovens. The on-chip 1-pole low-pass filter cleans appliance electrical noise, and the ratiometric output tolerates the wide supply variation common in motor-driven appliances. The ±1.5 g range is sufficient for tap detection (typically 2-5 g events use the ±6 g g-select setting). Wire the X/Y outputs through a simple RC network to the MCU ADC; the analog interface avoids the I²C address conflicts that arise when multiple digital sensors share a bus.
Được đề xuất
Gaming and Motion-Controlled Peripherals
The MMA6263QR2 suits motion-controlled gaming peripherals and remote controls because its dual X/Y axis detection tracks planar tilt gestures used for cursor or character steering, while the 900 Hz bandwidth captures fast motion gestures without aliasing. The 800 mV/g sensitivity provides ample signal swing into a low-cost MCU ADC. Connect the analog X/Y outputs to two ADC channels and run a software dead-zone plus tilt-to-position mapping; the analog interface avoids the I²C bus contention that occurs when the controller also services buttons and force-feedback drivers. The exposed pad ground connection is critical for stable zero-g reference.
Được đề xuất
Security and Anti-Theft Tilt Sensing
The MMA6263QR2 fits anti-theft and tamper-detection applications because its ±1.5 g range precisely detects gravity-vector shifts when a secured object is tilted or lifted. The dual X/Y axes distinguish tilt direction, useful for distinguishing a legitimate reposition from a theft event. Mount the device on the protected equipment with the exposed pad grounded; the analog outputs feed a low-power MCU that wakes from sleep on tamper detection. Compared to a tilt switch, the analog output gives proportional tilt angle rather than a binary threshold, enabling more sophisticated tamper-detection algorithms and reducing false alarms from incidental vibration.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MMA6263QR2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MMA6260QR2 | MMA6261QR2 | MMA6262QR2 | MMA6200Q | MMA6270QR2 |
|---|---|---|---|---|---|---|
| Package | 16-QFN-EP (6x6) | 16-QFN-EP (6x6) - same | 16-QFN-EP (6x6) - same | 16-QFN-EP (6x6) - same | 16-QFN-EP (6x6) - same | 16-QFN-EP (6x6) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Acceleration Range | ±1.5 g (g-select to ±6 g) | ±1.5 g | ±1.5 g | ±1.5 g | ±1.5 g | ±1.5/2.5/4/6 g (g-select) |
| Bandwidth | 900 Hz | 900 Hz | 900 Hz | 150 Hz | 900 Hz | 900 Hz |
| Sensitivity | 800 mV/g (740-860) | 740-860 mV/g | 740-860 mV/g | 740-860 mV/g | 740-860 mV/g | scaled by g-select |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Output Type | Analog X/Y | Analog X/Y | Analog X/Y | Analog X/Y | Analog X/Y | Analog X/Y |
| Lifecycle Status | Last-time-buy | Last-time-buy | Last-time-buy | Last-time-buy | Last-time-buy | Last-time-buy |
Bảo phân biệt quan trọng
- Highest analog bandwidth in the MMA6200 family (vsMMA6262QR2)
- Dual-axis analog output in 16-QFN-EP (6x6) (vsMMA6260QR2)
- Pin-compatible across the MMA6200 family (vsMMA6270QR2)
Ghi chú thiết kế
The MMA6263QR2 analog outputs are ratiometric to VDD: zero-g bias and sensitivity scale linearly with supply voltage. Use a low-noise ratiometric 3.3 V LDO such as the Texas Instruments LP2980 or Microchip MCP1700 to power the sensor and reference the MCU ADC from the same rail. Sharing the supply between sensor and ADC reference cancels supply-noise coupling that would otherwise shift the zero-g reading by tens of mg.
The 16-QFN exposed pad must be soldered to a top-layer ground pour of at least 16 mm² to provide both the electrical ground reference and mechanical rigidity for the MEMS structure. Avoid placing vias under the sensor die area; route analog X/Y outputs away from digital and switching signals with a guard trace tied to GND. A 100 nF ceramic decoupling capacitor must be placed within 3 mm of the VDD pin.
Drive the analog X/Y outputs through an op-amp buffer (such as the MCP6001 or OPA2333) before the MCU ADC to prevent sensor loading from distorting the ratiometric transfer function. The sensor output impedance of ~32 kΩ is high enough that direct ADC input introduces gain error. Add a 1 kHz RC anti-alias stage matched to the MCU ADC sample rate per the Nyquist criterion.
Do not place the sensor near vibration sources (motors, speakers, fans) without mechanical isolation, as the 900 Hz bandwidth will couple mechanical noise into the measurement. Do not exceed the absolute maximum supply voltage; verify the g-select logic levels against VDD rather than an absolute reference. Self-test must be exercised only at power-up or test mode, not continuously, as it injects a known electrostatic force that perturbs the output.
Thông tin tuân thủ
RoHS compliant per DigiChip and DigiKey Marketplace listings; legacy QFN termination chemistry retains lead content. Not AEC-Q100 qualified - not designed for automotive safety applications. Reach/halogen/conflict-minerals compliance not stated in distributor data.
