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NXP Semiconductors MMA2202KEGR2,518
- Part No.:
- MMA2202KEGR2,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MMA2202KEGR2,518.pdf
- Description:
- ANALOG CIRCUIT, 1 FUNC, CMOS, PD
- Quantity:
- Payment:
- Shipping:
Inventory:2,754
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Product details
Overview
MMA2202KEGR2,518 from NXP Semiconductors (formerly Freescale) is a surface-micromachined, single-axis ±50g capacitive accelerometer IC with integrated signal conditioning, 4th-order Bessel low-pass filter, and factory-calibrated self-test. It delivers ratiometric linear output (0.50 VDD mV/g/V), operates from –40°C to +105°C, and is qualified to AEC-Q100 Grade 2 for automotive and industrial vibration monitoring.
For engineers reviewing the MMA2202KEGR2,518 datasheet, MMA2202KEGR2,518 pinout, MMA2202KEGR2,518 application, or MMA2202KEGR2,518 equivalent, this page provides verified technical context, SOIC-16 pin mapping, real-world use cases in hard drive protection and appliance control, and two validated alternative accelerometers with documented functional trade-offs.
Technical Context
The MMA2202KEGR2,518 integrates a polysilicon g-cell transducer hermetically sealed at wafer level and a CMOS ASIC implementing switched-capacitor sensing, temperature compensation, and a 4-pole Bessel filter with f–3dB = 400 Hz (typ). Its ratiometric architecture ensures output offset and sensitivity scale linearly with VDD (4.75–5.25 V), enabling supply-noise rejection in microcontroller ADC interfaces.
Self-test is initiated via logic-high ST pin, generating calibrated 10–12 g mechanical deflection verified by STATUS pin latching. Fault detection includes low-voltage detect (VLVD = 3.25 V typ), clock monitor (fmin = 150 kHz), and EPROM parity check - all reported on the open-drain STATUS output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Acceleration Range | ±50 g - Full-scale measurement range for X-axis dynamic and static acceleration, including gravity sensing. |
| Output Sensitivity | 0.50 VDD mV/g/V - Ratiometric gain enables direct ADC interfacing without supply-voltage calibration. |
| Bandwidth (–3 dB) | 400 Hz - Preserves pulse shape integrity for vibration analysis up to audio-frequency mechanical events. |
| Supply Voltage | 4.75–5.25 V - Valid operating range for full calibration; operation outside requires revalidation. |
| Self-Test Output | 10–12 g response - Verifies mechanical integrity of g-cell and signal chain functionality pre-deployment. |
| Operating Temp | –40°C to +105°C - Qualified per AEC-Q100 Grade 2 for under-hood automotive and industrial environments. |
| ESD Rating | 2 kV HBM - Internal protection requires external ESD handling per datasheet precautions. |
Pinout & Package
Package: 16-lead SOIC (Case 475-01), Pb-free, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–3, 9–13, 14–16 | No Connect (N/C) | Internally unconnected; must be left floating per datasheet layout guidance. |
| 4 | ST (Self-Test Input) | Active-high digital input; initiates electrostatic self-test; internal pull-down prevents false triggering. |
| 5 | VOUT (Analog Output) | Ratiometric voltage output (VDD/2 ± 0.50·VDD·g·mV/g/V); requires 1 kΩ + 0.01 μF RC filter for clock noise suppression. |
| 6 | STATUS (Fault Output) | Open-drain logic output; latches high on LVD, clock failure, or EPROM parity error; reset via ST pulse ≥100 μs. |
| 7 | VSS | Ground reference for analog and digital sections; must connect to clean system ground plane. |
| 8 | VDD | Power supply input; requires 0.1 μF decoupling capacitor placed adjacent to pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Wafer-Level Seal | Eliminates package-level moisture ingress and long-term drift, ensuring reliability in harsh environments. |
| 4th-Order Bessel Filter | Provides linear phase response to preserve transient fidelity in vibration monitoring and shock detection. |
| Factory-Calibrated Self-Test | Validates end-to-end functionality (mechanical + electrical) without external test equipment or calibration fixtures. |
| Ratiometric Output Architecture | Enables direct connection to microcontroller ADCs without separate voltage references, reducing BOM cost and layout complexity. |
| AEC-Q100 Grade 2 Qualification | Validated for automotive applications requiring operation at 105°C ambient, including engine bay and transmission control units. |
Applications
| Vibration Monitoring and Recording | Computer Hard Drive Protection |
|---|---|
|
Use Scenario: Continuous monitoring of rotating machinery (motors, pumps) for early bearing fault detection via spectral analysis of acceleration waveforms. IC Role / Device Role / Timing Role: Analog front-end sensor providing conditioned, filtered ±50g X-axis acceleration data to embedded DSP or microcontroller. Use Value: 400 Hz bandwidth captures critical fault frequencies; ratiometric output simplifies ADC scaling in battery-powered portable analyzers. |
Use Scenario: Detecting free-fall events in laptops to park HDD heads before impact, preventing data loss and physical damage. IC Role / Device Role / Timing Role: Gravity-sensing element triggering immediate head-park interrupt within <10 ms of drop initiation. Use Value: Self-test capability validates sensor readiness at boot; ±50g range accommodates both drop shock and operational vibration. |
| Appliance Control | Mechanical Bearing Monitoring |
|
Use Scenario: Washing machine drum imbalance detection during spin cycle to dynamically adjust rotation speed and reduce vibration. IC Role / Device Role / Timing Role: Real-time X-axis acceleration feedback for closed-loop motor control firmware. Use Value: AEC-Q100 qualification ensures robustness against thermal cycling and EMI in white goods; SOIC-16 eases automated assembly. |
Use Scenario: Permanent mounting on industrial gearboxes to log RMS acceleration over time for predictive maintenance scheduling. IC Role / Device Role / Timing Role: Signal-conditioned analog output fed to isolated data logger or PLC analog input module. Use Value: Low 110 mVrms noise floor (10 Hz–1 kHz) enables detection of sub-0.1 g bearing wear signatures amid background vibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-axis analog-output accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL322BCPZ-RL7 | ±5 g range, 3-axis, 500 Hz bandwidth, 2.5 V supply; no self-test or status pin. | Limited to low-g consumer motion sensing; lacks fault reporting and automotive qualification. | Choose for cost-sensitive, non-automotive 3-axis applications where ±5 g suffices and diagnostics are not required. |
| MMA8452Q | I²C digital output, ±2/4/8 g selectable range, embedded FIFO, motion detection engine; no analog output or self-test pin. | Requires microcontroller with I²C; supports advanced features like orientation detection but adds firmware complexity. | Choose when digital interface, multi-axis data, and intelligent event detection outweigh need for analog simplicity and hardware self-test. |
Compared with MMA2202KEGR2,518, ADXL322BCPZ-RL7 offers broader axis coverage but sacrifices diagnostic capability and automotive ruggedness, while MMA8452Q replaces analog simplicity with digital flexibility and intelligence at the cost of added software overhead and loss of hardware-level fault visibility.
Availability
MMA2202KEGR2,518 is available at Aetrix Electronics and suitable for vibration monitoring, hard drive protection, and appliance control requiring stable component supply across automotive, industrial, and computing markets.
Supply support for MMA2202KEGR2,518 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The MMA series was designed by Freescale (now NXP) specifically for high-reliability, single-axis analog acceleration sensing in safety-critical and condition-monitoring systems requiring factory-calibrated performance and built-in diagnostics.
FAQ
What is the supply voltage range for reliable operation of the MMA2202KEGR2,518?
The MMA2202KEGR2,518 operates reliably within a supply voltage range of 4.75 V to 5.25 V. Within this window, the device maintains full calibration and specified performance for offset, sensitivity, and bandwidth. Operation outside this range may yield linear output but is not guaranteed to meet datasheet specifications - the MMA2202KEGR2,518 must be powered within these limits for certified AEC-Q100 Grade 2 functionality.
How does the self-test function work on the MMA2202KEGR2,518?
The MMA2202KEGR2,518 implements a calibrated electrostatic self-test: applying a logic-high signal to the ST pin activates an internal electrode that deflects the g-cell's movable plate, simulating 10–12 g of acceleration. This produces a corresponding step change on VOUT and causes the STATUS pin to latch high - confirming mechanical integrity of the sensor and full signal chain functionality without external equipment.
What does the STATUS pin indicate on the MMA2202KEGR2,518?
The STATUS pin on the MMA2202KEGR2,518 is an open-drain output that latches high upon occurrence of any fault condition: supply voltage dropping below 3.25 V (typ), internal clock frequency falling below 150 kHz, or EPROM parity becoming odd. It remains asserted until cleared by a ≥100 μs high pulse on the ST pin - unless the underlying fault persists, in which case the MMA2202KEGR2,518 continues reporting the error.
Is the MMA2202KEGR2,518 compatible with 3.3 V microcontrollers?
The MMA2202KEGR2,518 requires a nominal 5 V supply (4.75–5.25 V) and is not rated for direct 3.3 V operation. While its output is ratiometric, the internal oscillator, self-test circuitry, and fault monitors depend on the specified VDD range. Interfacing with a 3.3 V microcontroller ADC is possible only if VDD = 5 V and the VOUT signal is scaled or buffered appropriately - the MMA2202KEGR2,518 itself must be powered at 5 V.
What packaging format does the MMA2202KEGR2,518 use?
The MMA2202KEGR2,518 is supplied in tape-and-reel format (R2 suffix) using a 16-lead SOIC package (Case 475-01), with Pb-free and RoHS-compliant construction. Its footprint matches standard SOIC-16 land patterns, and the datasheet specifies minimum solder mask openings and pad dimensions to ensure reliable reflow soldering and mechanical stability in high-vibration environments.
MMA2202KEGR2,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MMA
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Analog
- Axis:
- X
- Acceleration Range:
- ±56.3g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 40
- Bandwidth:
- 400Hz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MMA2202KEGR2,518 FAQ
1.How can I place an order for MMA2202KEGR2,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMA2202KEGR2,518 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MMA2202KEGR2,518 reliable?
The price and inventory of MMA2202KEGR2,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMA2202KEGR2,518 is usually 5 days.
3.What payment methods are accepted for MMA2202KEGR2,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMA2202KEGR2,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMA2202KEGR2,518?
MMA2202KEGR2,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMA2202KEGR2,518 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MMA2202KEGR2,518?
For technical support, including MMA2202KEGR2,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMA2202KEGR2,518 requirements.
6.How does Aetrix verify that MMA2202KEGR2,518 is sourced from the original manufacturer or authorized distributors?
All MMA2202KEGR2,518 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MMA2202KEGR2,518 meets industry standards.
7.What is the process for return or replacement of MMA2202KEGR2,518?
All MMA2202KEGR2,518 units undergo pre-shipment inspection (PSI). If there is an issue with MMA2202KEGR2,518, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MMA2202KEGR2,518 part is unused and in its original packaging.
Return procedure for MMA2202KEGR2,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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