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NXP Semiconductors MMA3202EGR2
- Part No.:
- MMA3202EGR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MMA3202EGR2.pdf
- Description:
- ACCEL 112.5G/56.3G ANALOG 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,299
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Product details
Overview
MMA3202EGR2 from NXP Semiconductors (formerly Freescale) is a dual-axis surface-micromachined capacitive accelerometer with integrated signal conditioning, 4th-order Bessel low-pass filtering, and factory-calibrated ±100g X-axis / ±50g Y-axis full-scale range. It delivers ratiometric linear analog outputs (XOUT/YOUT), operates from 4.75–5.25 V, draws 6–10 mA, and is qualified to AEC-Q100 Grade 2 (–40°C to +125°C) for automotive and industrial vibration monitoring.
For engineers reviewing the MMA3202EGR2 datasheet, MMA3202EGR2 pinout, MMA3202EGR2 application, or MMA3202EGR2 equivalent, key selection criteria include its dual-axis sensitivity asymmetry, self-test capability with status latching, on-chip clock monitoring, low-voltage detection, and SOIC-20 package compatibility with PCB-level ESD protection requirements.
Technical Context
The MMA3202EGR2 implements a silicon MEMS g-cell with two orthogonal sensing structures, each coupled to a CMOS ASIC using switched-capacitor measurement techniques. Its 4-pole Bessel filter (f–3dB = 360–440 Hz) preserves pulse shape integrity without external components, while temperature compensation and factory trimming ensure stable zero-g offset and sensitivity across –40°C to +125°C.
Self-test is activated via logic-high ST pin, applying electrostatic force to deflect the center plate and produce calibrated output shifts (~12g equivalent). Fault detection includes EPROM parity error, clock frequency deviation (<50 kHz or >260 kHz), and supply voltage drop below 2.7 V, all latched to STATUS pin until reset by ST pulse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| X-axis range | ±100 g - supports high-shock impact detection in hard drive protection and appliance drop testing |
| Y-axis range | ±50 g - optimized for lower-range motion sensing in joysticks and VR input devices |
| Sensitivity (X) | 20 mV/g typical - enables direct interface to 12-bit ADCs with ≥2.5 V full-scale input |
| Sensitivity (Y) | 40 mV/g typical - provides higher resolution for Y-axis motion at same VDD |
| Bandwidth | 360–440 Hz - captures mechanical vibration up to ~700 Hz without aliasing when sampled ≥2 kSPS |
| Supply current | 6–10 mA - compatible with 5 V rail in power-constrained embedded systems |
| ESD rating | 2 kV HBM - requires external handling precautions per datasheet ESD warning |
Pinout & Package
Package: 20-lead SOIC (Case 475A-02), surface-mount, Pb-free, tape-and-reel packaging (R2 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 5 ST | Digital input | Active-high self-test initiation; internal pull-down prevents false triggering |
| 6 XOUT | Analog output | Ratiometric voltage proportional to X-axis acceleration (0.46–0.54 × VDD at 0g) |
| 7 STATUS | Digital output | Open-drain fault latch (LV, clock fail, EPROM parity); resets only on ST pulse |
| 8 VSS | Ground | Digital ground reference; separate from AVDD return path |
| 9 VDD | Power | Digital supply input (4.75–5.25 V); decoupled with 0.1 µF capacitor |
| 10 AVDD | Power | Analog supply input; must be tied to VDD but routed separately for noise isolation |
| 11 YOUT | Analog output | Ratiometric voltage proportional to Y-axis acceleration (same 0g baseline as XOUT) |
| 20 GND | Ground | Package ground pad; must be connected to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic wafer-level seal | Eliminates long-term drift from moisture ingress; enables >10-year reliability in sealed enclosures |
| Factory-trimmed zero-g offset | Removes need for system-level calibration; maintains ±2.5% FSO accuracy over temperature |
| Calibrated self-test | Verifies mechanical integrity (g-cell) and signal chain (ASIC) simultaneously; output shift ≈12g equivalent |
| On-chip clock monitor | Detects oscillator failure or frequency shift outside 50–260 kHz window; triggers STATUS latch |
| AEC-Q100 Grade 2 qualification | Validated for automotive under-hood operation (–40°C to +125°C ambient) |
Applications
| Computer Hard Drive Protection | Appliance Control |
|---|---|
Use Scenario: Detects free-fall events in laptops to park read/write heads before impact. IC Role / Device Role / Timing Role: Dual-axis inertial sensor providing real-time acceleration data to host controller for predictive head parking. Use Value: Prevents mechanical damage during drops by initiating head retraction within <14.4 ms of self-test response time. | Use Scenario: Monitors drum rotation imbalance and door slam shock in washing machines. IC Role / Device Role / Timing Role: Analog-output accelerometer feeding microcontroller ADC for vibration-based load sensing and fault detection. Use Value: Enables adaptive spin cycle control using ±100g X-axis range to capture high-magnitude transient shocks. |
| Computer Mouse and Joysticks | Sports Diagnostic Devices |
Use Scenario: Translates hand movement into cursor position or game control inputs. IC Role / Device Role / Timing Role: Low-noise dual-axis motion sensor delivering ratiometric analog signals to MCU ADC. Use Value: Delivers 40 mV/g Y-axis sensitivity for fine-resolution directional control without external amplification. | Use Scenario: Captures biomechanical impact forces during athletic training or rehabilitation. IC Role / Device Role / Timing Role: High-shock survivable sensor (2000 g unpowered) mounted on wearable gear for impact magnitude and direction analysis. Use Value: Supports quantitative injury risk assessment using calibrated ±50g Y-axis range and 360 Hz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-axis analog-output accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL202E/ADXL202AE | Dual-axis ±2 g / ±6 g range; digital PWM output; no self-test or status latch | Lacks fault detection and calibrated self-test; requires external RC filter for analog conversion | Select for cost-sensitive consumer applications where ±6 g range suffices and diagnostics are not required |
| MMA8452Q | I²C digital output; ±2/4/8 g selectable range; embedded FIFO and motion detection; 14-bit resolution | Requires I²C interface and firmware integration; no analog outputs or direct self-test voltage verification | Select for systems needing programmable range, low-power wake-on-motion, and digital bus integration over analog simplicity |
Compared with ADXL202E and MMA8452Q, the MMA3202EGR2 offers unique value in applications requiring factory-calibrated analog outputs, deterministic self-test verification, and AEC-Q100-compliant analog signal integrity without software overhead - especially where drop-in replacement of legacy Freescale designs is needed.
Availability
MMA3202EGR2 is available at Aetrix Electronics and suitable for computer hard drive protection, appliance control, and sports diagnostic devices requiring stable component supply and long-lifecycle support.
Supply support for MMA3202EGR2 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 company formed from the spin-off of Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The MMA3202 series belongs to NXP's legacy Xtrinsic analog sensor portfolio, designed specifically for high-reliability, dual-axis inertial sensing in automotive safety systems and industrial equipment where analog output stability and built-in diagnostics are critical.
FAQ
What is the operating temperature range for the MMA3202EGR2?
The MMA3202EGR2 is rated for continuous operation from –40°C to +125°C and qualified to AEC-Q100 Grade 2 standards. This range covers under-hood automotive environments and industrial enclosures with minimal thermal management. The device maintains specified performance (e.g., ±1.0% FSO nonlinearity, ±100g/±50g range) across this full span, with factory temperature compensation applied during trim.
Does the MMA3202EGR2 require external passive components for filtering?
No, the MMA3202EGR2 integrates a 4th-order switched-capacitor Bessel filter with fixed cutoff (360–440 Hz), eliminating the need for external resistors or capacitors. However, an external RC filter (1 kΩ + 0.01 µF) is recommended on XOUT and YOUT to suppress clock noise from the internal oscillator, as specified in the datasheet's PCB layout guidelines.
How does the self-test function verify both mechanical and electrical integrity of the MMA3202EGR2?
The MMA3202EGR2 self-test applies a calibrated electrostatic force to the MEMS g-cell's movable plate via the ST pin, causing physical deflection. The resulting output shift (≈12g equivalent) is measured by the internal ASIC and appears as a proportional voltage change on XOUT and YOUT. Simultaneously, the STATUS pin asserts if faults (e.g., clock failure) occur during test, confirming end-to-end functionality of the MMA3202EGR2 signal chain.
What is the difference between VDD, AVDD, and VSS pins on the MMA3202EGR2?
VDD supplies digital circuitry (control logic, EPROM, clock generator); AVDD powers the analog front-end (g-cell interface, filters, output buffers); VSS is the digital ground reference. Though AVDD must be tied to VDD externally, the datasheet mandates separate PCB routing to minimize digital switching noise coupling into analog outputs - critical for achieving specified 110 mVRMS noise floor (.01 Hz–1 kHz).
Can the MMA3202EGR2 be used in new designs despite its legacy status?
Yes, the MMA3202EGR2 remains actively supported by NXP with documented lifecycle plans and is stocked by authorized distributors. Its proven AEC-Q100 qualification, hermetic wafer-level seal, and deterministic analog output behavior make it suitable for new industrial and automotive derivative designs where long-term supply stability and minimal firmware dependency are priorities over digital interface flexibility.
MMA3202EGR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MMA3202
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y
- Acceleration Range:
- ±112.5g (X), ±56.3g (Y)
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 20 (X), 40 (Y)
- Bandwidth:
- 400Hz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MMA3202EGR2 FAQ
1.How can I place an order for MMA3202EGR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMA3202EGR2 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 MMA3202EGR2 reliable?
The price and inventory of MMA3202EGR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMA3202EGR2 is usually 5 days.
3.What payment methods are accepted for MMA3202EGR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMA3202EGR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMA3202EGR2?
MMA3202EGR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMA3202EGR2 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 MMA3202EGR2?
For technical support, including MMA3202EGR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMA3202EGR2 requirements.
6.How does Aetrix verify that MMA3202EGR2 is sourced from the original manufacturer or authorized distributors?
All MMA3202EGR2 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 MMA3202EGR2 meets industry standards.
7.What is the process for return or replacement of MMA3202EGR2?
All MMA3202EGR2 units undergo pre-shipment inspection (PSI). If there is an issue with MMA3202EGR2, 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 MMA3202EGR2 part is unused and in its original packaging.
Return procedure for MMA3202EGR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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