MMA2301EGR2 - ±200g X-Axis MEMS Accelerometer | NXP | Industrial
部品番号: MMA2301EGR2 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.2 | $112.00 |
| 100 | $9.85 | $985.00 |
| 500 | $8.65 | $4,325.00 |
| 1,000 | $7.4 | $7,400.00 |
MMA2301EGR2 概要
An accelerometer is a micro-electro-mechanical (MEMS) sensor that converts mechanical acceleration into a proportional analog output voltage. The MMA series integrates the sensing element with on-chip signal conditioning, a 4-pole low-pass filter and active temperature compensation, eliminating the need for external trim components. Hierarchy: accelerometer -> MEMS motion sensor -> inertial sensor -> sensor IC -> semiconductor.
Key features include zero-g offset, full-scale span and filter cut-off frequency factory-trimmed for direct microcontroller ADC interfacing, a 400 Hz bandwidth (per the 4-pole Butterworth filter characteristic), and analog ratiometric output. The integrated compensation preserves sensitivity and bias across the -40C to +125C automotive grade 2 temperature span.
The MMA2301EGR2 uses a silicon capacitive sensing cell with a sealed gaseous damping medium; movement of the proof mass changes the differential capacitance, which is read out by the on-chip ASIC. The surface-micromachined structure provides high shock survivability (>2000g) and long-term bias stability over the -40C to +125C operating range. The 5V analog interface produces a ratiometric output centered on 2.5V, simplifying connection to a 5V ADC input.
Typical applications include high-shock event monitoring in industrial machinery, tilt and inclination sensing for elevator and crane safety systems, vehicle suspension and chassis control feedback, airbag crash-detection front-ends, vibration analysis on rotating equipment, and sports/recreation impact logging. The high-g ±225g range addresses regimes where low-g consumer accelerometers clip.
When designing with this part, ensure the 5V supply is well decoupled (100 nF plus 1 uF bulk) and that the analog output is buffered when driving long cables or low-impedance ADC reference networks. Place the sensor on a rigid board region away from thermal gradients and PCB flexure to avoid bias drift and false triggering.
This page consolidates distributor pricing, true drop-in package-compatible alternatives and lab-style design notes that go beyond a casual datasheet summary.
ドロップイン代替品: MMA2301EGR2 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MMA2301EGR2 （同一形状・フットプリント） — 相違点: Axis, Bandwidth, Lead Free Status, Operating Temperature, Output Type.
クイック比較ツール — 並列比較する代替部品を選択:
MMA2301EGR2
✅ ドロップイン✓ 在庫あり
$7.4 / 個
データシートを見る →MMA2301EG
✅ ドロップイン✓ 在庫あり
$9.95 / 個
データシートを見る →MMA2301DR2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MMA2301D
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MMA2301EGR2 最大定格＆電気的特性
| センサタイプ | Accelerometer, single-axis (X) |
| Axis | X |
| Acceleration Range (nominal) | +/-200 g |
| Acceleration Range (tested) | +/-225 g |
| 電源電圧 | 5 V |
| Sensitivity | 9.5 mV/g to 10.5 mV/g |
| 出力タイプ | Analog, ratiometric |
| Bandwidth | 400 Hz (4-pole low-pass) |
| 動作温度 | -40C to +125C |
| パッケージ | 16-pin SOIC, case 475-01 (Tape & Reel) |
| 実装タイプ | Surface Mount |
| Sensing Technology | Silicon capacitive micromachined (MEMS) |
| Filter | 4-pole low-pass (factory set) |
| Temperature Compensation | On-chip active compensation |
| Lead Free Status | Lead Free Compliant by Exemption |
| RoHS ステータス | RoHS Compliant |
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Series | MMA |
MMA2301EGR2 16-pin soic, case 475-01 (tape & reel) ピン配置ガイド
MMA2301EGR2 (16-pin soic, case 475-01 (tape & reel) パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: MMA2301EGR2.
詳細は データシート をご参照ください。
主な用途
MMA2301EGR2 の用途: 6 件s: Industrial Machine Vibration Monitoring, Elevator and Crane Safety Control, Vehicle Suspension and Chassis Feedback, Crash Detection Front-End, Rotating Equipment Vibration Analysis, Sports and Recreational Impact Logging.
Industrial Machine Vibration Monitoring
The MMA2301EGR2 fits industrial vibration monitoring because its +/-225g range captures the high-energy transients typical of rotating equipment without saturating, and its 400 Hz 4-pole low-pass filter isolates mechanical vibration from electrical interference. The 9.5-10.5 mV/g sensitivity at 5V produces a usable 0 to 5V analog signal well suited to a PLC analog input module; the ratiometric output scales with supply, simplifying loop calibration. Mounted on a rigid boss of the motor or gearbox housing, the sensor enables FFT-style diagnostics with the on-chip temperature compensation preserving accuracy over -40C to +125C ambient swings.
おすすめ
Elevator and Crane Safety Control
The MMA2301EGR2 is well matched to elevator overspeed and crane safety applications where sustained or shock accelerations routinely exceed 20-50g; the +/-200g nominal range prevents clipping during emergency stops and lock-and-bar engagements. The analog 5V ratiometric output is robust against the cable runs typical of overhead hoist wiring, and the SOIC-16 package can be hand-soldered for retrofitting existing safety modules. Its factory-calibrated offset and gain remove the on-board trim that complicates long-term calibration maintenance for safety-critical installations.
おすすめ
Vehicle Suspension and Chassis Feedback
In automotive suspension and chassis control, the MMA2301EGR2 supplies the high-g accelerations inherent to body and wheel motion that mid-g sensors miss; the -40C to +125C operating window survives underhood and chassis ambient exposures. The SOIC-16 surface-mount package supports automated assembly, and the analog output integrates directly with ECU sub-modules without needing digital isolation. Sensitivity of ~10 mV/g around a 2.5V center point makes the signal easy to read with a standard ECU ADC channel.
おすすめ
Crash Detection Front-End
The MMA2301EGR2 suits crash-detection front-ends for two-wheelers, off-road and agricultural machinery where its +/-225g dynamic range captures the high-amplitude deceleration pulses of a real impact without clipping. The analog output carries the g profile directly to a small MCU that runs the actual crash algorithm in software, giving OEMs flexibility to update thresholds. The SOIC-16 package's large lead spacing improves solder joint reliability under shock and vibration in rugged environments.
おすすめ
Rotating Equipment Vibration Analysis
For bearing-health and rotating-equipment analysis, the MMA2301EGR2's 400 Hz low-pass filter rejects the high-frequency ultrasonic noise from pumps and compressors while passing key mechanical tones such as bearing defects and shaft imbalance frequencies. The 5V analog output streams directly into a portable data logger for route-based condition monitoring with the on-chip temperature compensation keeping zero-g drift minimal as equipment warms up. The factory-trimmed sensitivity eliminates user calibration during commissioning visits.
おすすめ
Sports and Recreational Impact Logging
The MMA2301EGR2 fits impact-recording devices like helmet sensors, action-camera mounts and impact sport wearables that routinely see 50-150g events. The SOIC-16 package integrates onto small PCBs and provides vibration robustness beyond consumer-grade LGA parts. The 5V analog output allows the host MCU to capture raw waveforms without requiring a digital low-g comparator; embedded designers can implement event detection in firmware around the analog rail.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MMA2301EGR2 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MMA2301EG | MMA2301DR2 | MMA2301D |
|---|---|---|---|---|
| Package | 16-SOIC (case 475-01) | 16-SOIC (case 475-01) - same | 16-SOIC (case 475-01) - same | 16-SOIC (case 475-01) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Acceleration Range (nominal) | +/-200 g | +/-200 g | +/-200 g | +/-200 g |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Sensitivity | 9.5 mV/g to 10.5 mV/g | 9.5 mV/g to 10.5 mV/g | 9.5 mV/g to 10.5 mV/g | 9.5 mV/g to 10.5 mV/g |
| Bandwidth | 400 Hz | 400 Hz | 400 Hz | 400 Hz |
| Output Type | Analog, ratiometric | Analog, ratiometric | Analog, ratiometric | Analog, ratiometric |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Packaging Format | Tape & Reel (R2) | Tube (no R2) | Tape & Reel (R2) | Tube (no R2) |
主な差別化要因
- High-g +/-200g nominal / +/-225g tested range with on-chip temperature compensation （vs MMA2300EGR2)
- Analog ratiometric 5V output （vs ADXL375 (Analog Devices))
- Pb-Free RoHS-compliant tape-and-reel variant （vs MMA2301EG (tube))
設計ノート
Provide a clean 5V supply decoupled directly at the IC with a 100 nF X7R ceramic capacitor plus a 1 uF to 10 uF bulk tantalum or ceramic capacitor. The output is ratiometric, so any noise on VDD above 1 kHz translates directly to the analog output; if the system uses a switching regulator upstream, place an LC pi filter on the 5V rail or feed the sensor from a low-dropout linear regulator.
Place the MMA2301EGR2 over a rigid section of the PCB, ideally screwed to the chassis or housing so that the sensor body, not the PCB flexure, captures the vibration. Keep the analog output trace short and guard it against digital switching traces. A small RC low-pass (for example 1 kOhm plus 100 pF) on the output can be used to extend noise immunity if the load wiring is long.
The output impedance of the MMA2301EGR2 is high enough that the analog signal should be buffered before driving a long cable or low-impedance ADC reference network. Drive the ADC input through a unity-gain buffer such as a TLV9064 or similar rail-to-rail op-amp. If sampling at kHz rates add a small anti-alias filter before the ADC.
Do not assume the 400 Hz filter is user-configurable: cut-off is factory-trimmed. Trying to apply heavy mechanical mounting isolation can shift the actual mechanical frequency response away from the assumed electrical cut-off. Always characterize the as-installed resonance first. Also, the ratiometric output does not allow simple scaling to 3.3V ADCs - use a level shifter or AVDD divider.
コンプライアンス情報
RoHS and Pb-Free status confirmed via Freescale/NXP ordering code conventions (EG suffix denotes Pb-Free; R2 denotes tape and reel); the 'Lead Free Compliant by Exemption' statement appears in the Freescale datasheet. Other compliance fields (REACH, AEC-Q100, halogen-free, conflict minerals) were not present in the verified web data and are marked unknown.
