MMA2260DR2 - ±1.5g X-Axis Micromachined Accelerometer | NXP
MPN： MMA2260DR2 ⚠ 最後購買機會MMA2260DR2 概覽
An accelerometer is a MEMS (micro-electro-mechanical systems) sensor that detects linear acceleration along one or more axes. The capacitive micromachined topology used in the MMA2260DR2 measures acceleration-induced proof-mass displacement via differential capacitance change, then conditions the signal through on-chip CMOS electronics. In the broader sensor hierarchy, the MMA2260DR2 sits as: accelerometer -> inertial sensor -> motion sensor -> MEMS device -> semiconductor IC. This category provides orientation, vibration, tilt, and shock information used for safety, control, and user-interface functions.
Key features of the MMA2260DR2 include a ratiometric analog output (sensitivity scales with supply), a self-test pin for built-in diagnostics, on-chip temperature compensation, and a rugged SOIC-16 housing tolerant of the harsh environments typical of automotive and industrial applications. The integrated 2-pole low-pass filter limits aliasing and out-of-band mechanical noise. Because zero-g and span are factory trimmed, designers drop the sensor onto a PCB with no external calibration components beyond the supply bypass capacitor.
The MMA2260DR2's mixed-signal CMOS signal conditioning chain converts the capacitive sensor signal to a low-impedance analog output voltage, while on-chip temperature compensation holds zero-g offset and sensitivity across the industrial temperature range. The 50 Hz filter corner is well below typical automotive and machine-vibration spectra to keep high-frequency mechanical noise out of downstream ADCs. This analog-output architecture fits legacy 0-5V system designs and avoids the digital I2C/SPI overhead that newer parts such as the MMA845x family require.
Typical applications for the MMA2260DR2 include automotive airbag restraint systems, anti-lock brake (ABS) sensors, security motion detection, inclinometers, vibration monitoring in industrial equipment, and tilt/proximity detection in appliances. The ±1.5g range suits low-g instrumentation rather than crash-event sensing. Designers select the ratiometric analog interface when integration with a traditional 0-5V ADC and microcontroller without I2C is needed.
When designing with the MMA2260DR2, add a 0.1 microfarad bypass capacitor close to the supply pin and a small RC network on the output for EMI suppression when routed near motor or ignition cabling. Avoid mechanical stress on the package, as PCB flex can shift offset beyond the factory trim. The analog output swings roughly 0.5V to 4.5V on a 5V supply; saturating into the rails reduces usable resolution at the highest g ranges.
This page synthesizes distributor pricing, verified datasheet specifications, same-brand NXP alternatives from the Freescale-era MMA family, and design notes drawn from NXP application guidance not available on standard distributor product pages.
直接替換替代品，適用於 MMA2260DR2 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
MMA2260D
✅ 直接替換📋 參考替代品（不在目錄中）
MMA2261DR2
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MMA1260D
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MMA3202D
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MMA2260DR2 最大額定值與電氣特性
| 感測器類型 | Accelerometer, single-axis (X) |
| 量測範圍 | ±1.5 g |
| 輸出類型 | Analog voltage (ratiometric) |
| Axis | X (single) |
| Bandwidth | 50 Hz (2-pole low-pass filter) |
| Zero-g Offset | Factory trimmed |
| 工作溫度 | -40 C to +85 C (industrial) |
| Self-Test | Yes (self-test pin) |
| Temperature Compensation | On-chip |
| 封裝 | SOIC-16 wide-body (DR2 suffix) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Non-Compliant (contains lead) |
| Lead-Free Status | Contains Lead |
MMA2260DR2 腳位配置
| 腳位 1 | NC — Not connected (per datasheet) |
| 腳位 2 | NC — Not connected (per datasheet) |
| 腳位 3 | VCC — Supply voltage (typical 5 V) |
| 腳位 4 | NC — Not connected (per datasheet) |
| 腳位 5 | GND — Ground |
| 腳位 6 | NC — Not connected (per datasheet) |
| 腳位 7 | NC — Not connected (per datasheet) |
| 腳位 8 | NC — Not connected (per datasheet) |
| 腳位 9 | NC — Not connected (per datasheet) |
| 腳位 10 | ST — Self-test input |
| 腳位 11 | NC — Not connected (per datasheet) |
| 腳位 12 | NC — Not connected (per datasheet) |
| 腳位 13 | NC — Not connected (per datasheet) |
| 腳位 14 | NC — Not connected (per datasheet) |
| 腳位 15 | VOUT — Analog output (ratiometric to VCC) |
| 腳位 16 | NC — Not connected (per datasheet) |
典型應用
MMA2260DR2 適用於 6 應用s: Automotive Airbag Crash Sensor (legacy restraint module), Inclinometer / Tilt Sensor, Industrial Vibration Monitoring, Security / Motion Detection, Anti-Lock Brake System (ABS) Wheel-Speed Sensor Interface (legacy), Consumer Appliance Tilt Sensing.
Automotive Airbag Crash Sensor (legacy restraint module)
The MMA2260DR2's ±1.5 g X-axis range and 50 Hz low-pass filter suit slow-tilt and roll sensing channels inside legacy restraint modules. Its ratiometric analog output drives 0-5 V system ADCs without digital I2C overhead, and the on-chip temperature compensation holds zero-g offset across -40 C to +85 C underhood swings. Use the self-test pin to verify sensor health at airbag ECU power-up; the wide SOIC-16 package survives automotive mechanical stress.
推薦
Inclinometer / Tilt Sensor
With its narrow ±1.5 g range and factory-trimmed zero-g offset, the MMA2260DR2 makes a low-cost analog tilt sensor for construction levels, agricultural equipment, and HVAC vent position feedback. At 0 deg horizontal the output sits near mid-scale (2.5 V at 5 V supply), and at 90 deg vertical it rises to roughly 4.5 V. The 50 Hz internal filter rejects motor vibration on heavy equipment platforms.
推薦
Industrial Vibration Monitoring
The 50 Hz internal 2-pole low-pass filter and the analog-output interface of the MMA2260DR2 suit FFT-style machine-condition monitoring on pumps, fans, and motor housings. Mount the SOIC-16 housing flat against the equipment chassis and route the ratiometric output to a 12-bit ADC running at 1 kHz. The ±1.5 g range maps vibration amplitude on rotating machinery without saturating on startup transients.
推薦
Security / Motion Detection
The MMA2260DR2's X-axis analog output integrates cleanly with PIR-augmented intrusion panels: the self-test pin verifies the sensor at startup, and the 50 Hz bandwidth filters out sub-Hz thermal noise and high-frequency switching transients. Its ratiometric output swings 0.5-4.5 V, so a window comparator triggers an alarm when the panel is moved or tilted. The wide SOIC-16 footprint survives rough handling during installation.
推薦
Anti-Lock Brake System (ABS) Wheel-Speed Sensor Interface (legacy)
Legacy ABS ECUs use single-axis low-g analog accelerometers such as the MMA2260DR2 to detect vehicle deceleration and wheel-lock events. Its ratiometric output drives the ECU's 5 V ADC directly without digital interface glue, and the on-chip temperature compensation maintains offset across underhood thermal swings. Designers should add a 0.1 microfarad bypass capacitor close to the supply pin for stable readings.
推薦
Consumer Appliance Tilt Sensing
Washing machines, robotic vacuums, and mobile appliances use single-axis low-g accelerometers such as the MMA2260DR2 to detect unbalanced loads or fall events. The factory-trimmed zero-g offset simplifies the load-balance algorithm and removes the need for in-line calibration. The analog output feeds directly into the appliance MCU's ADC, leaving I2C bus bandwidth free for other sensors.
推薦
推薦產品摘要
工程參考資料，適用於 MMA2260DR2 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MMA2260D | MMA2261DR2 | MMA1260D | MMA3202D |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | SOIC-16 wide-body | SOIC-16 wide-body | SOIC-16 wide-body | SOIC-16 wide-body | SOIC-16 wide-body |
| Measurement Range | ±1.5 g | ±1.5 g | ±1.5 g | ±1.5 g | +25 g X / -45 g Y |
| Axis | X-axis (single) | X-axis (single) | X-axis (single) | Z-axis (single) | X/Y dual-axis |
| Output Type | Analog (ratiometric) | Analog (ratiometric) | Analog (ratiometric) | Analog (ratiometric) | Analog (ratiometric) |
| Self-Test | Yes | Yes | Yes | Yes | Yes |
| RoHS | Non-Compliant (contains lead) | Non-Compliant | Non-Compliant | Non-Compliant | Non-Compliant |
主要差異化特點
- Single-axis X-axis analog accelerometer in legacy SOIC-16 footprint (對比MMA845x family)
- Comparable sensitivity and range to MMA2261DR2 (same family) (對比MMA2261DR2)
- Same SOIC-16 footprint across the MMA22xx family (對比MMA3202D (dual-axis, higher range))
設計說明
Place a 0.1 microfarad ceramic bypass capacitor within 5 mm of the VCC pin (pin 3) to suppress supply noise. Mechanical stress on the SOIC package can shift zero-g offset, so mount the accelerometer near board anchor points rather than in cantilevered sections. Reference the NXP AN1667 MEMS application note for layout practices.
The MMA2260DR2's analog output is ratiometric to VCC: any regulator drift on the 5 V supply directly couples into the acceleration reading. Use a low-dropout regulator with 1 percent or better tolerance and add a ferrite bead on the supply rail if the sensor sits near switching converters. Saturation into the 0.5 V or 4.5 V rails reduces usable resolution at the maximum g range.
Route the analog VOUT trace away from motor phases, ignition cables, and high-current switching traces. Add a 100 ohm series resistor plus 1 nF to 10 nF capacitive load at the input of the downstream ADC to form a low-pass anti-aliasing filter. The internal 50 Hz filter corner only protects against mechanical noise, not EMI picked up on long PCB traces.
合規資訊
MMA2260DR2 contains lead per datasheet; RoHS non-compliant. AEC-Q100 automotive qualification status not confirmed in available data; many MMA series were qualified under legacy NXP/Freescale automotive programs.
