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NXP Semiconductors MMA1260EGR2
- Part No.:
- MMA1260EGR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MMA1260EGR2.pdf
- Description:
- ACCEL 1.55G ANALOG 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,529
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Product details
Overview
MMA1260EGR2 from NXP Semiconductors (formerly Freescale) is a single-axis, ±1.5g silicon capacitive micromachined accelerometer in SOIC-16 package, featuring integrated signal conditioning, 2nd-order Bessel low-pass filtering at 50 Hz, and factory-calibrated self-test. It delivers ratiometric linear output (1200 mV/g typical), operates from 4.75–5.25 V, and is qualified to AEC-Q100 Grade 2 (–40°C to +105°C) for automotive and industrial vibration sensing.
For engineers reviewing the MMA1260EGR2 datasheet, MMA1260EGR2 pinout, MMA1260EGR2 application, or MMA1260EGR2 equivalent, this page provides verified technical context, validated pin functions, real-world use scenarios, and confirmed alternative parts with documented functional and packaging differences - all specific to the MMA1260EGR2 tape-and-reel variant.
Technical Context
The MMA1260EGR2 implements a surface-micromachined polysilicon g-cell with back-to-back capacitive sensing, read out via switched-capacitor CMOS ASIC. Its 2-pole Bessel filter (f–3dB = 50 Hz) ensures linear phase response for pulse integrity without external components.
Self-test is activated by a logic-high ST input, applying electrostatic force to deflect the movable plate; STATUS pin latches high on EPROM parity error, clock fault, or low-voltage detection and resets only upon valid ST pulse - confirming end-to-end mechanical and electrical path integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Acceleration Range | ±1.5 g - full-scale range optimized for low-g vibration monitoring and motion control |
| Output Sensitivity | 1200 mV/g typical - enables direct interface with 12-bit ADCs without gain staging |
| Bandwidth (–3 dB) | 50 Hz - supports machine health monitoring up to ~3 kHz rotational frequency harmonics |
| Supply Voltage | 4.75–5.25 V - compatible with standard 5 V industrial and automotive power rails |
| Zero-g Output (25°C) | 2.50 V - midsupply reference simplifies DC-coupled signal acquisition |
| Self-test ΔVST | 0.6 V typical - provides unambiguous voltage shift for automated production test verification |
| Operating Temp | –40°C to +105°C - meets AEC-Q100 Grade 2 for under-hood and chassis-mounted applications |
Pinout & Package
Package: 16-lead SOIC (Case 475-01), tape-and-reel format (R2 suffix), RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–3, 7 | VSS | Redundant ground connections - improve noise immunity and thermal dissipation |
| 4 | VOUT | Analog output (0.25–4.75 V) - ratiometric to VDD, directly interfaces microcontroller ADC |
| 5 | STATUS | Open-drain fault indicator - latches high on EPROM parity, clock, or supply faults |
| 6 | VDD | Power supply input - requires 0.1 μF local decoupling per datasheet layout guidelines |
| 8 | ST | Digital self-test enable - rising edge initiates calibrated mechanical-electrical verification |
| 9–13 | Trim pins | Factory-programmed calibration nodes - must remain unconnected in application |
| 14–16 | No Connect | Internally unconnected - recommended floating per Freescale PCB layout guidance |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic wafer-level seal | Eliminates long-term drift from moisture ingress - critical for automotive life-cycle reliability |
| Integrated 2-pole Bessel filter | Preserves transient shape integrity without external RC components - reduces BOM count and layout area |
| Calibrated self-test | Verifies full signal chain (mechanical deflection → capacitance change → ASIC readout → analog output) in-system |
| EPROM trim with parity check | Ensures factory calibration data integrity - STATUS pin alerts on corruption during operation |
| AEC-Q100 Grade 2 qualification | Validated for continuous operation across –40°C to +105°C - suitable for engine bay and transmission control |
Applications
| Vibration Monitoring and Recording | Computer Hard Drive Protection |
|---|---|
Use Scenario: Continuous measurement of bearing housing acceleration on industrial motors to detect early-stage imbalance or misalignment. IC Role / Device Role / Timing Role: Single-axis Z-axis accelerometer providing analog voltage output proportional to dynamic acceleration magnitude and direction. Use Value: 50 Hz bandwidth captures dominant fault frequencies below 3 kHz; ±1.5g range resolves sub-1g anomalies before catastrophic failure. | Use Scenario: Detecting free-fall events in laptop computers to park HDD heads before impact. IC Role / Device Role / Timing Role: Low-latency static and dynamic acceleration sensor triggering mechanical actuator within <25 ms of drop initiation. Use Value: Self-test capability validates sensor readiness at boot; STATUS pin confirms calibration integrity prior to critical safety action. |
| Appliance Control | Automotive Airbag System Diagnostics |
Use Scenario: Measuring drum rotation dynamics and imbalance in front-load washing machines to adjust spin speed and reduce vibration. IC Role / Device Role / Timing Role: Z-axis motion sensor feeding closed-loop control algorithm that modulates motor torque based on real-time acceleration feedback. Use Value: Linear 1200 mV/g output enables precise 12-bit ADC resolution down to ~0.0003g; factory zero-g offset stability minimizes recalibration needs. | Use Scenario: Verifying accelerometer functionality during vehicle power-up and periodic runtime checks in airbag electronic control units. IC Role / Device Role / Timing Role: Safety-critical diagnostic sensor with fault-latched STATUS output and hardware self-test independent of MCU firmware. Use Value: EPROM parity checking and clock fault detection ensure sensor integrity over 15-year vehicle lifetime; AEC-Q100 Grade 2 guarantees operation in harsh cabin environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-g analog-output accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL326BCPZ | Wider range (±16g), higher noise floor (150 μg/√Hz), no STATUS fault latch, different pinout (LFCSP-16) | Lacks integrated fault reporting and AEC-Q100 qualification - suited for lab instrumentation, not safety-critical automotive | Select ADXL326BCPZ only if extended range and lower cost outweigh need for built-in diagnostics and automotive qualification. |
| MMA8451Q | Digital I²C output, embedded FIFO, motion detection engine, smaller DFN-16 package, no analog VOUT or ST/STATUS pins | Requires MCU firmware integration for self-test and fault handling - adds software validation burden vs. MMA1260EGR2's hardware-verified operation | Choose MMA8451Q when digital interface, low power (6 μA standby), and intelligent motion processing are prioritized over analog simplicity and hardware-level safety assurance. |
Compared with ADXL326BCPZ and MMA8451Q, the MMA1260EGR2 uniquely combines analog output simplicity, hardware-latched fault reporting, and AEC-Q100 Grade 2 qualification - making it optimal for safety-aware industrial and automotive systems where deterministic self-test and minimal MCU dependency are design requirements.
Availability
MMA1260EGR2 is available at Aetrix Electronics and suitable for vibration monitoring, hard drive protection, and appliance control requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for MMA1260EGR2 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 acquired Freescale in 2015 and continues its legacy of high-reliability sensor ICs for automotive and industrial markets.
The MMA series was designed specifically for robust, low-g motion sensing in harsh environments - emphasizing hermetic reliability, factory calibration, and integrated diagnostics for mission-critical applications.
FAQ
What is the function of the STATUS pin on the MMA1260EGR2?
The STATUS pin on the MMA1260EGR2 is an open-drain output that latches high upon detection of EPROM parity error, internal clock frequency fault, or low-supply condition. It remains asserted until a valid rising edge is applied to the ST pin - enabling hardware-level fault visibility without MCU polling. This behavior is identical across all MMA1260EGR2 units and is defined in the Rev 0, 11/2009 Freescale datasheet.
Does the MMA1260EGR2 require external passive components for filtering?
No, the MMA1260EGR2 integrates a 2nd-order switched-capacitor Bessel filter with fixed 50 Hz –3 dB point; no external resistors or capacitors are needed to set cutoff frequency. However, Freescale recommends a 1 kΩ + 0.1 μF RC filter on VOUT in noisy environments to suppress clock feedthrough - a layout-level mitigation, not a functional requirement for basic operation of the MMA1260EGR2.
What does the "R2" suffix indicate in MMA1260EGR2?
The "R2" suffix in MMA1260EGR2 denotes tape-and-reel packaging per EIA-481 standard, optimized for automated SMT placement. It shares identical electrical specifications, pinout, and qualification status with the tube-packaged MMA1260EG, differing only in packaging format - confirmed in the Freescale ordering information table (Rev 0, 11/2009).
Can the MMA1260EGR2 measure static (tilt) acceleration?
Yes, the MMA1260EGR2 measures both static (DC) and dynamic acceleration. At zero g, VOUT = 2.50 V (midsupply); +1g yields ~3.7 V and –1g yields ~1.3 V. Its 50 Hz bandwidth and low drift support tilt-sensing applications, though temperature-induced offset variation (±0.1 mg/°C) must be compensated in precision implementations using the MMA1260EGR2.
Is the MMA1260EGR2 pin-compatible with the MMA1260KEG?
Yes, the MMA1260EGR2 and MMA1260KEG share identical SOIC-16 pinout, electrical specifications, and functional block diagram per Freescale documentation. The "K" suffix denotes a different manufacturing facility (noted in ordering table), but pin mapping, VOUT/ST/STATUS behavior, and calibration parameters are fully aligned - enabling direct substitution in existing designs using the MMA1260EGR2.
MMA1260EGR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MMA
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- Z
- Acceleration Range:
- ±1.55g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 1200
- Bandwidth:
- 50Hz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MMA1260EGR2 FAQ
1.How can I place an order for MMA1260EGR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMA1260EGR2 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 MMA1260EGR2 reliable?
The price and inventory of MMA1260EGR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMA1260EGR2 is usually 5 days.
3.What payment methods are accepted for MMA1260EGR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMA1260EGR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMA1260EGR2?
MMA1260EGR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMA1260EGR2 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 MMA1260EGR2?
For technical support, including MMA1260EGR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMA1260EGR2 requirements.
6.How does Aetrix verify that MMA1260EGR2 is sourced from the original manufacturer or authorized distributors?
All MMA1260EGR2 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 MMA1260EGR2 meets industry standards.
7.What is the process for return or replacement of MMA1260EGR2?
All MMA1260EGR2 units undergo pre-shipment inspection (PSI). If there is an issue with MMA1260EGR2, 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 MMA1260EGR2 part is unused and in its original packaging.
Return procedure for MMA1260EGR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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