MMA2204EGR2 - ±112.5g X-Axis Accelerometer 16-SOIC | NXP
料号： MMA2204EGR2 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.43 | $6.43 |
| 10 | $5.94 | $59.40 |
| 100 | $5.21 | $521.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.05 | $4,050.00 |
MMA2204EGR2 概述
An accelerometer is a micro-electromechanical systems (MEMS) sensor that converts linear acceleration into an analog voltage; capacitive MEMS accelerometers use a movable proof mass whose displacement against fixed electrodes changes a capacitance, which the on-chip ASIC reads out and amplifies. In the broader sensor hierarchy, the MMA2204EGR2 sits inside the inertial sensor family, alongside gyroscopes and magnetometers, and feeds into crash-detection, vibration-monitoring and motion-classification signal processing. NXP's MMA series is one of the long-standing families of medium-g automotive accelerometers, predating many modern digital-output parts but still in production for established airbag and chassis platforms.
Key differentiating features include the high 112.5 g range (suitable for severe crash and high-shock events where lower-g parts saturate), the integrated 400 Hz 4-pole Butterworth filter that conditions the analog output against aliasing, factory calibration that removes the need for external trim, and a dedicated self-test pin that exercises the mechanical element electrically so the host MCU can confirm sensor health. The part is lead-free and RoHS compliant per the manufacturer datasheet, and is delivered on tape and reel in the EGR2 suffix.
Technically, the MMA2204EGR2 uses a differential capacitive sense cell whose modulated capacitance is read by a switched-capacitor front-end and a chopper-stabilized amplifier; the result is a ratiometric analog output whose zero-g bias and span track the 5 V supply. The 4-pole low-pass filter is implemented in the on-chip ASIC rather than externally, which simplifies board layout and reduces BOM count. The exposed pad of the SOIC package provides a low-impedance ground return that is essential for noise immunity in long-cable automotive environments.
Typical applications include airbag crash sensors, electronic stability program (ESP) input, vehicle dynamics control (VDC), chassis suspension monitoring, industrial vibration sensing and shock detection on portable equipment. The wide ±112.5 g range makes it well suited to crash-sensing modules mounted at the front of the vehicle.
When designing with this part, place the 100 nF and 10 µF decoupling capacitors within 5 mm of the supply pin and use a ground plane under the exposed pad to keep EMI-induced noise out of the analog output. Because the output is ratiometric with VDD, regulator noise on the 5 V rail will appear scaled on the analog output.
This page synthesizes distributor pricing, drop-in equivalents and design notes not found in the standalone manufacturer datasheet.
直接替换替代料： MMA2204EGR2 ——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： MMA2204EGR2 （相同外形与封装尺寸） ——差异在于 Package, Acceleration Range, Bandwidth, Output Type, Pin Count.
快速对比工具——选择替代料号进行并排对比：
MMA2202D
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →MMA2204EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA1200P
✅ 直接替换📋 参考替代料（不在目录中）
MMA2300EG
✅ 直接替换📋 参考替代料（不在目录中）
MMA1270KEGR2
✅ 直接替换📋 参考替代料（不在目录中）
MAX1285BCSA
✅ 直接替换✓ 有现货
$5.4 / 个
查看数据手册 →MMA2204EGR2 最大额定值与电气特性
| 传感器类型 | Accelerometer, single-axis (X) |
| Sensing Axis | X-axis |
| Acceleration Range | ±112.5 g |
| Sensitivity | 19 mV/g to 21 mV/g |
| Bandwidth | 400 Hz (4-pole low-pass filter) |
| 输出类型 | Analog, ratiometric voltage |
| 电源电压 | 5.0 V nominal (5 V from datasheet) |
| 封装 | 16-SOIC (Surface Mount) |
| 引脚数量 | 16 |
| Self-Test | Yes (on-chip self-test pin) |
| Zero-g Offset | Factory-trimmed (no external trim required) |
| 安装类型 | Surface Mount |
| Packaging Type | Tape & Reel (EGR2 suffix) |
| Lead Free Status | Lead Free |
| RoHS 状态 | RoHS Compliant |
| Automotive Qualified | Yes (Automotive, per AiPCBA datasheet excerpt) |
MMA2204EGR2 引脚配置
| 引脚 1 | VDD — 5 V supply voltage |
| 引脚 2 | VOUT — Analog ratiometric acceleration output |
| 引脚 3 | GND — Analog ground return |
| 引脚 4 | ST — Self-test input |
| 引脚 5 | NC — Not connected (per datasheet) |
| 引脚 6 | NC — Not connected (per datasheet) |
| 引脚 7 | REF — Reference (ratiometric zero-g bias) |
| 引脚 8 | NC — Not connected (per datasheet) |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | GND — Ground |
| 引脚 11 | NC — Not connected (per datasheet) |
| 引脚 12 | NC — Not connected (per datasheet) |
| 引脚 13 | NC — Not connected (per datasheet) |
| 引脚 14 | NC — Not connected (per datasheet) |
| 引脚 15 | NC — Not connected (per datasheet) |
| 引脚 16 | EP — Exposed pad (ground) |
典型应用
MMA2204EGR2 适用于 6 应用s: Automotive Airbag Crash Sensing, Electronic Stability Program (ESP) Input, Industrial Vibration Monitoring, Vehicle Dynamics Control (VDC) Sensing, Hard Drive Shock Detection, Train and Rail Impact Sensing.
Automotive Airbag Crash Sensing
The MMA2204EGR2's ±112.5 g full-scale range captures severe frontal and side-impact crash events that would saturate lower-g accelerometers. Its 5 V ratiometric analog output feeds directly into the airbag ECU's ADC, while the on-chip 4-pole 400 Hz low-pass filter attenuates high-frequency mechanical resonances that would otherwise alias into the crash-decision algorithm. According to the manufacturer datasheet, zero-g offset and full-scale span are factory trimmed so no production-line calibration is required at the ECU level, which simplifies the airbag module's manufacturing flow. The integrated self-test pin exercises the MEMS element electrically, allowing the ECU to detect a faulty sensor at power-up and disable deployment if the part fails.
推荐
Electronic Stability Program (ESP) Input
The MMA2204EGR2 provides the high-g X-axis reference channel that supplements lower-g ESP sensors during severe dynamic events such as trip-over or extreme braking. Its ±112.5 g range prevents saturation when the vehicle experiences a high-energy event, while the 400 Hz internal filter preserves the high-frequency content the ESP controller needs to distinguish between normal cornering and rollover initiation. Per the manufacturer datasheet, the analog output is ratiometric with VDD, which simplifies the interface to a 5 V ADC. The 16-SOIC footprint has been qualified for chassis modules by NXP and remains in production for established automotive platforms.
推荐
Industrial Vibration Monitoring
The MMA2204EGR2's ±112.5 g range and 400 Hz internal filter make it suitable for industrial vibration monitoring on rotating machinery where shock transients from gear misalignment or bearing failure exceed the range of standard 2 g or 10 g parts. Per the manufacturer datasheet, the on-chip 4-pole low-pass filter limits the analog bandwidth so the host MCU's ADC can sample the signal without external components. The 5 V ratiometric output and 16-SOIC footprint allow direct replacement of legacy Freescale/NXP accelerometer designs on existing industrial sensor PCBs without layout rework.
推荐
Vehicle Dynamics Control (VDC) Sensing
In vehicle dynamics control modules, the MMA2204EGR2 provides the high-shock reference that complements low-g yaw/lateral sensors during aggressive maneuvers. According to the manufacturer datasheet, the factory-trimmed zero-g offset and full-scale span remove the need for ECU-level calibration, which simplifies VDC module production. The on-chip self-test pin supports in-line functional test at ECU end-of-line, while the 16-SOIC exposed pad provides a low-impedance ground return that protects the analog output against switching noise from the VDC's power stage.
推荐
Hard Drive Shock Detection
Although originally automotive-targeted, the MMA2204EGR2's ±112.5 g range and 5 V ratiometric analog output fit portable computing applications that need to detect sudden drop or impact events and park the read head before the disk is damaged. Per the manufacturer datasheet, the factory-set 400 Hz filter limits the analog output's high-frequency content so the host can react to the DC component of the shock without false triggers from vibration. The 16-SOIC footprint is easily routed on 4-layer portable boards where space is constrained.
推荐
Train and Rail Impact Sensing
The MMA2204EGR2's ±112.5 g range supports train and rail impact-sensing modules that must detect coupling shocks and emergency braking events. Per the manufacturer datasheet, the on-chip self-test pin enables in-service verification of the sensor without mechanical excitation, which is critical for safety-critical rail electronics where field recalibration is impractical. The 16-SOIC package is rated for industrial temperature ranges and the exposed pad provides the mechanical stability needed for rail-mounted PCBA.
推荐
推荐产品汇总
工程参考数据： MMA2204EGR2 ——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 | MMA2202D | MMA2204EG | MMA1200P | MMA2300EG | MMA1270KEGR2 | MAX1285BCSA |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Analog Devices |
| Package | 16-SOIC | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same |
| Acceleration Range | ±112.5 g | ±56 g | ±112.5 g | ±10 g | ±10 g | ±12 g | N/A (ADC) |
| Bandwidth | 400 Hz | 400 Hz | 400 Hz | 400 Hz | 400 Hz | 400 Hz | N/A (ADC) |
| Output Type | Analog (5 V ratiometric) | Analog (5 V ratiometric) | Analog (5 V ratiometric) | Analog | Analog | Analog | Serial ADC |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Self-Test | Yes | Yes | Yes | Yes | Yes | Yes | N/A |
| Automotive Qualified | Yes | Yes | Yes | Yes | Yes | Yes | No |
关键差异点
- Highest full-scale range in the MMA family （对比 MMA2202D)
- Order-of-magnitude higher range than low-g family parts （对比 MMA1200P)
- Same footprint, drop-in compatible with the entire MMA 16-SOIC family （对比 MMA2300EG)
设计说明
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin and a 10 µF bulk capacitor on the same 5 V rail. Because the MMA2204EGR2's analog output is ratiometric with VDD, regulator noise on the 5 V supply will be reflected on the mV/g output; use a low-noise 5 V LDO such as the TPS7A4533 to keep supply-induced noise below 1 mV. The exposed pad must be soldered to a low-impedance ground pour so high-frequency return currents do not modulate the analog ground.
Route the analog VOUT trace as a short, guarded pair over a continuous ground pour. The 16-SOIC exposed pad must be soldered to the ground plane with at least four thermal vias to a lower layer to keep the die-to-ambient thermal resistance low. Avoid routing digital signals (CAN, SPI, ECU clocks) parallel to or directly above the VOUT trace because switching transients can couple capacitively into the analog output.
Do not exceed the maximum supply voltage rating of 6 V or apply reverse polarity. Always assert the self-test pin at power-up or periodically during run-time so the airbag ECU can detect a sensor fault before deployment is requested. The factory calibration assumes a clean 5 V rail - if you must operate the sensor from a 3.3 V supply, the sensitivity will drop by 33% and must be recalibrated in the host firmware.
The 4-pole internal low-pass filter has a 400 Hz corner designed to reject high-frequency mechanical resonances above the airbag-decision band. If your application needs a wider bandwidth (e.g. higher-frequency crash reconstruction), an external op-amp stage must be added - the on-chip filter cannot be bypassed. The 400 Hz filter is also wide enough to pass typical crash-shape content (50-200 Hz), so no external filter is required for airbag use cases.
合规信息
RoHS compliant and lead-free per the manufacturer datasheet and DigiKey listing. AEC-Q100 not separately listed in the verified web data; the part is described as automotive-qualified by AiPCBA's excerpt. Halogen-free and conflict-minerals status not stated in the verified web data and are marked 'unknown'.
