MMA2202EG - ±56.3g X-Axis Analog Accelerometer | NXP | 16-SOIC
料号： MMA2202EG ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.4 | $18.40 |
| 10 | $16.55 | $165.50 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.85 | $10,850.00 |
MMA2202EG 概述
What is an accelerometer? An accelerometer is a sensor that measures proper acceleration along one or more axes, converting mechanical motion into an electrical signal. The MMA series from NXP (originally Freescale / Motorola) uses a silicon capacitive micromachined (MEMS) sense element combined with CMOS signal conditioning, making it a member of the broader MEMS sensor hierarchy: accelerometer -> inertial sensor -> motion sensor -> semiconductor sensor. This integration places the part firmly in the Sensors > Motion Sensors product family.
Key features of the MMA2202EG include a factory-set zero-g offset, full-scale span, and filter cut-off frequency, eliminating the need for external trim components. A self-test pin verifies mechanical element integrity in application, and on-chip temperature compensation maintains sensitivity and offset across the -40 °C to +125 °C automotive temperature range. The 4-pole low-pass filter limits aliasing into downstream ADCs and reduces high-frequency mechanical noise.
From an architecture perspective, the MMA2202EG uses a differential capacitive sense cell whose deflection under acceleration is read out by a switched-capacitor charge amplifier. The CMOS ASIC includes a precision bandgap reference and a temperature compensation block, giving the device a sensitivity tolerance of ±5 % over temperature. Because the output is ratiometric to VDD, ADC measurements that share the same 5 V rail as the sensor are immune to supply-rail drift.
Typical applications include automotive airbag crash detection, electronic stability control (ESC) supplemental sensing, industrial vibration monitoring, and appliance tilt/inclination detection. The wide ±56.3 g range is well-matched to high-shock events such as frontal collision pulses. In drop-test rigs and machine health monitoring, the part's integrated filter reduces post-processing burden on the host microcontroller.
When designing with this device, route the analog output through a low-pass RC (typically 1 kΩ / 1 nF) to limit RF pickup before the host ADC, and add 100 nF decoupling close to VDD and GND. Because the output is ratiometric, sharing the ADC reference with the sensor supply is essential for absolute accuracy.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a typical distributor product page, including a side-by-side comparison with same-package NXP MMA22xx family variants and cross-package alternatives engineers actually evaluate for retrofit designs.
直接替换替代料： MMA2202EG ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MMA2202EG （相同外形与封装尺寸） ——差异在于 Bandwidth, Lead Free Status, Package, RoHS Status, Technology.
快速对比工具——选择替代料号进行并排对比：
MMA2204EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA2206EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA2200EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA2301EG
✅ 直接替换✓ 有现货
$9.95 / 个
查看数据手册 →MMA1250EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA1220EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA2202EG 最大额定值与电气特性
| 传感器类型 | Accelerometer, single-axis (X) |
| Technology | MEMS, capacitive sense element |
| Acceleration Range | ±56.3 g |
| Sensitivity | 38 mV/g to 42 mV/g |
| 输出类型 | Analog, ratiometric voltage |
| Zero-g Output (typ.) | 2.5 V (mid-supply) |
| Bandwidth | 400 Hz (4-pole low-pass filter) |
| Supply Voltage (VDD) | 4.75 V to 5.25 V |
| Self-Test Pin | Yes (logic input) |
| 工作温度范围 | -40 °C to +125 °C |
| 封装 | 16-pin SOIC |
| 安装类型 | Surface Mount |
| Temperature Compensation | On-chip, factory trimmed |
| RoHS 状态 | Compliant |
| Lead Free Status | Lead Free |
MMA2202EG 引脚配置
| 引脚 1 | TP1 — Test pin 1 (factory use, no-connect in application per datasheet) |
| 引脚 2 | TP2 — Test pin 2 (factory use, no-connect in application per datasheet) |
| 引脚 3 | ST — Self-test input (logic high activates electrostatic self-test) |
| 引脚 4 | NC — Not connected |
| 引脚 5 | NC — Not connected |
| 引脚 6 | VREF — Voltage reference (nominally 2.5 V at 5 V supply) |
| 引脚 7 | VOUT — Analog ratiometric output (sensitivity 38-42 mV/g) |
| 引脚 8 | GND — Ground (0 V) |
| 引脚 9 | VDD — Supply voltage (4.75 V to 5.25 V) |
| 引脚 10 | NC — Not connected |
| 引脚 11 | NC — Not connected |
| 引脚 12 | NC — Not connected |
| 引脚 13 | NC — Not connected |
| 引脚 14 | NC — Not connected |
| 引脚 15 | NC — Not connected |
| 引脚 16 | TP3 — Test pin 3 (factory use, no-connect in application per datasheet) |
典型应用
MMA2202EG 适用于 6 应用s: Automotive Airbag Crash Detection, Electronic Stability Control (ESC) Supplemental Sensing, Industrial Vibration Monitoring, Drop-Test and Shock Recorder Systems, Appliance Tilt and Inclination Sensing, Motorcycle and Powersport Black-Box Recorders.
Automotive Airbag Crash Detection
The MMA2202EG's ±56.3 g full-scale range and 400 Hz low-pass filter make it well-matched to airbag crash-sensing applications, where peak accelerations during a side-impact or rear-impact event can reach 30-50 g for tens of milliseconds. The on-chip 4-pole filter reduces high-frequency mechanical noise that could falsely trigger a deployment decision, while the ratiometric analog output lets the host ADC share the 5 V supply as its reference, minimizing absolute scale error. Compared with mechanical crash sensors, the MMA2202EG's small 16-SOIC footprint simplifies mounting on distributed satellite sensor modules. The factory-trimmed zero-g offset (nominally 2.5 V at 5 V) and on-chip temperature compensation across -40 °C to +125 °C eliminate per-unit calibration, a key advantage over earlier generations of MEMS accelerometers. NXP recommends the MMA26xx digital-output family for new airbag platforms, but existing designs can continue to use the MMA2202EG while inventory is available.
推荐
Electronic Stability Control (ESC) Supplemental Sensing
In an ESC system, the MMA2202EG serves as a supplemental high-g sensor for detecting wheel-lift events and extreme chassis dynamics that exceed the range of the primary low-g ESC sensor (typically ±2 g). Its ±56.3 g range and 400 Hz bandwidth capture the fast transients associated with rollover precursors, while the 5 V ratiometric output feeds directly into a 5 V ADC input channel on the ESC microcontroller. The 16-SOIC package is small enough to be placed near each wheel hub, reducing wiring harness length and improving signal integrity. On-chip temperature compensation maintains sensitivity across underhood temperatures, and the self-test pin lets the host microcontroller verify mechanical element integrity at every power-on. Engineers designing ESC systems should consult the NXP ESC reference designs for proper sensor placement and mounting torque specifications to avoid bias errors from PCB stress.
推荐
Industrial Vibration Monitoring
The MMA2202EG's ±56.3 g range and 400 Hz analog bandwidth make it suitable for industrial vibration monitoring on rotating machinery, where it can capture bearing-fault signatures and shock events that exceed ±10 g. The 5 V ratiometric output connects directly to a 4-20 mA transmitter front-end or a panel-meter ADC, simplifying field wiring. The on-chip 4-pole low-pass filter removes aliasing components above 400 Hz, allowing direct sampling at 1 kSPS without additional external filtering. Its -40 °C to +125 °C operating range covers most industrial environments, and the 16-SOIC package is compatible with hand-soldered prototypes and SMT production lines. The self-test pin can be driven periodically to detect sensor-element failure in unattended installations. For low-frequency vibration analysis (below 1 Hz), an external AC-coupling capacitor and DC-blocking stage are recommended.
推荐
Drop-Test and Shock Recorder Systems
The MMA2202EG is well-suited to drop-test rigs and shock data recorders used in packaging qualification, where it captures the acceleration pulse that a product experiences during a free-fall drop onto a hard surface. The ±56.3 g range accommodates drops of 1-2 m onto concrete, while the 400 Hz bandwidth is sufficient to capture the dominant spectral content of the impact pulse. The ratiometric analog output feeds directly into a data-logger ADC, and the on-chip filter reduces high-frequency mechanical ringing that could saturate the downstream amplifier. The 16-SOIC package can be soldered onto a small daughterboard that mounts inside the test article. For drops exceeding 100 g peak, the MMA2204EG or MMA2206EG are recommended drop-in alternatives sharing the same 16-SOIC footprint.
推荐
Appliance Tilt and Inclination Sensing
Although the MMA2202EG's ±56.3 g range is much wider than the ~1 g signal of a static tilt sensor, it can still be used in dynamic-tilt applications such as washing-machine imbalance detection and refrigerator-door-ajar alarms. At rest, the 1 g gravitational component produces a 38-42 mV shift, and large dynamic tilt events (e.g., a washer entering an off-balance spin cycle) can produce multi-g signals that the MMA2202EG captures without saturating. The on-chip temperature compensation keeps the zero-g offset stable across the appliance's operating environment, and the 5 V analog output interfaces directly to most appliance microcontrollers. For purely static tilt measurement where resolution matters more than range, the MMA1220EG Z-axis part is a better drop-in choice in the same 16-SOIC package.
推荐
Motorcycle and Powersport Black-Box Recorders
The MMA2202EG's wide ±56.3 g range captures the high-shock events that occur during motorcycle crashes, making it a candidate sensor for powersport black-box data recorders that document ride dynamics for insurance and accident reconstruction. Its 400 Hz bandwidth is sufficient to capture the impact signature, and the 5 V ratiometric output feeds directly into a low-cost 10-bit or 12-bit ADC on a black-box microcontroller. The 16-SOIC surface-mount package is small enough to fit inside a handlebar-mounted or under-seat enclosure, and the -40 °C to +125 °C operating range covers storage and operating temperatures in most climates. Engineers should add mechanical isolation (rubber mounts) to prevent high-frequency PCB vibration from coupling into the MEMS element above the filter cutoff. For higher-g events (racing crashes), the MMA2301EG in the same 16-SOIC footprint provides ±225 g range.
推荐
推荐产品汇总
工程参考数据： MMA2202EG ——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 | MMA2204EG | MMA2206EG | MMA2200EG | MMA2301EG |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-SOIC | 16-SOIC (same) | 16-SOIC (same) | 16-SOIC (same) | 16-SOIC (same) |
| Full-Scale Range | ±56.3 g | ±112.6 g | ±169.3 g | ±40 g | ±225 g |
| Sensitivity | 38-42 mV/g | 20 mV/g | 12.5 mV/g | 50 mV/g | 10 mV/g |
| Bandwidth | 400 Hz | 400 Hz | 400 Hz | 400 Hz | 400 Hz |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Axis | X | X | X | X | X |
| Output Type | Analog ratiometric | Analog ratiometric | Analog ratiometric | Analog ratiometric | Analog ratiometric |
| Self-Test Pin | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
关键差异点
- Optimized range for side-impact airbag crash sensing （对比 MMA2204EG)
- Higher sensitivity (mV/g) for low-amplitude events （对比 MMA2206EG)
- Single-axis X-axis orientation （对比 MMA1220EG (Z-axis))
设计说明
The MMA2202EG requires a clean 5.0 V supply. Place a 100 nF ceramic decoupling capacitor as close as possible to VDD (pin 9) and GND (pin 8), with a 10 µF bulk capacitor at the supply rail. Because the analog output is ratiometric to VDD, supply noise couples directly into the acceleration reading; an RC filter (10 Ω + 10 µF) on VDD is recommended in noisy automotive environments.
Route the analog VOUT trace as a short, guarded trace away from digital switching lines and from the self-test pin. Place a 1 kΩ series resistor plus 1 nF capacitor to GND at the host ADC input to form a low-pass filter (fc ≈ 160 kHz) that limits RF pickup without affecting the 400 Hz signal bandwidth. Use a ground plane on the layer beneath the SOIC, and avoid placing vias in the sense-element area to minimize mechanical stress coupling.
Three common pitfalls when designing with the MMA2202EG: (1) using a separate ADC reference that drifts relative to VDD - this destroys ratiometric accuracy, so share VDD with the ADC reference; (2) driving the self-test pin high continuously - this applies an electrostatic force to the sense element and should be pulsed only briefly; (3) PCB stress on the SOIC package - mechanical strain from over-tightened mounting screws can shift the zero-g offset, so use the recommended mounting hardware and torque values from the datasheet.
合规信息
Per DigiKey product page and NXP/Freescale datasheet: RoHS compliant, lead-free, qualified to automotive temperature grade -40 °C to +125 °C (AEC-Q100 qualified per the 'EG' suffix designation in the MMA family).
