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MMA3204EGR2 - ±112.5g/±33.75g Dual-Axis Accelerometer | NXP
The NXP MMA3204EGR2 is a dual-axis (X and Y) silicon capacitive micromachined accelerometer with signal conditioning, a 4-pole low-pass filter, and on-chip temperature compensation, delivered in a 20-pin SOIC surface-mount package. The X-axis is rated for ±112.5g full-scale range while the Y-axis is rated for ±33.75g, giving a wide dynamic range suited for both high-shock and lower-g tilt/vibration channels in a single device. The signal bandwidth extends to 400 Hz and each axis has a dedicated analog output. An accelerometer is a MEMS (micro-electromechanical systems) sensor that converts mechanical acceleration into an analog voltage proportional to the applied g-force. The MMA3204EGR2 belongs to the surface-micromachined capacitive sensor family, hierarchically classified as accelerometer -> motion sensor -> inertial sensor -> MEMS -> sensor IC. It integrates mechanical structure, analog front-end, filtering, and self-test functions in one package, simplifying system design compared to discrete piezoelectric or piezoresistive alternatives. Key differentiating specifications include the dual-range design (high-g X, low-g Y in the same IC), dedicated per-axis outputs, a 4-pole low-pass filter for noise suppression, and integrated temperature compensation that stabilizes zero-g offset and sensitivity across the operating range. The two separate outputs also let designers route each axis through different gain stages downstream. The MMA3204EGR2 uses a silicon capacitive sense element whose proof-mass movement modulates a differential capacitor bridge read out by on-chip CMOS signal conditioning. This architecture delivers low noise, low power, and good DC response, while the factory-calibrated zero-g offset and sensitivity reduce the need for end-of-line calibration. The exposed SOIC pad also aids thermal dissipation during sustained high-g events. Typical applications include automotive airbag crash sensing, electronic stability control, industrial vibration monitoring, and tilt/inclination measurement where two axes are measured simultaneously. The wide ±112.5g X-axis range makes the device particularly suited for harsh shock environments. When designing with this part, place 0.1 uF decoupling capacitors close to the supply pins and follow the SOIC-20 land pattern recommended by NXP. Verify that the bandwidth setting of the on-chip filter matches the application's highest frequency of interest to avoid aliasing or loss of useful spectral content. This page consolidates verified distributor pricing, drop-in alternatives, and practical design guidance for engineers evaluating or sourcing the MMA3204EGR2.
MMA3204KEG - ±100g/±30g Dual-Axis Accelerometer | NXP
The NXP MMA3204KEG is a dual-axis (X and Y) silicon capacitive, micromachined accelerometer in a 20-pin SOIC package. It measures acceleration along two independent axes simultaneously, with a ±112.5g (±100g typical) full-scale range on the X axis and ±33.75g (±30g typical) full-scale range on the Y axis. The sensor operates from a single 4.75 V to 5.25 V supply and provides separate, ratiometric analog outputs for each axis. An accelerometer is a micro-electromechanical sensor (MEMS) that measures proper acceleration (the rate of change of velocity relative to free fall). It belongs to the broader category of motion sensors, which itself is a subset of sensors and transducers. The MMA3204KEG sits within this hierarchy as a dual-axis linear accelerometer, commonly used in industrial and consumer systems that need to detect tilt, shock, vibration, or impact. MEMS accelerometers convert mechanical motion into a change in capacitance, which is then conditioned and amplified into a voltage proportional to acceleration. Key features include integrated signal conditioning, a four-pole low-pass filter for noise bandwidth control, on-chip temperature compensation, and g-select input pins that allow designers to switch between full-scale ranges. The X-axis sensitivity is 20 mV/g and the Y-axis sensitivity is 66.67 mV/g, with 0 g output at approximately 2.5 V. The device is qualified to the automotive temperature grade and supports surface-mount assembly. Internally, the MMA3204KEG uses a capacitive sensing cell in which a differential capacitor changes capacitance in response to acceleration, followed by a switched-capacitor amplifier, low-pass filter, and output buffer. This architecture provides stable ratiometric output across the operating temperature range, simplifying firmware calibration. Typical applications include appliance control, vibration recording, impact monitoring, hard drive protection, virtual reality input devices, and sports diagnostics. The dual-axis capability is particularly valuable in applications where both lateral and vertical motion need to be measured with a single component. When designing with this device, add 0.1 µF decoupling capacitors close to the supply pin and follow good PCB grounding practice to preserve signal integrity. The g-select pins must be tied high or low to configure the desired full-scale range at power-up. This page synthesizes distributor pricing, drop-in same-brand alternatives from the MMA3200 series, and practical design notes not found in the manufacturer datasheet alone.
MMA3204KEGR2 - ±112.5g/±33.75g Dual-Axis 5V Accelerometer | NXP
The NXP MMA3204KEGR2 is a dual-axis (X, Y) micromachined surface-mount accelerometer in a 20-pin SOIC wide-body package with measurement ranges of ±112.5g on the X axis and ±33.75g on the Y axis. It operates from a single 4.75 V to 5.25 V supply, draws [DATA_NEEDED: supply current] from the rail, and provides ratiometric analog voltage outputs proportional to applied acceleration, with sensitivities of 20 mV/g on the X channel and 66.67 mV/g on the Y channel. The internal signal path includes signal conditioning, a four-pole low-pass filter, and temperature compensation, and the part is AEC-Q100 qualified for automotive applications. An accelerometer is a MEMS (micro-electro-mechanical systems) sensor that converts mechanical acceleration into a measurable electrical signal - typically a voltage proportional to the g-force acting along one or more sensing axes. Within the broader sensor taxonomy, the MMA3204KEGR2 sits in the linear (DC) inertial sensor family, alongside gyroscopes and inclinometers, and is sub-classified as a high-g automotive crash-detection accelerometer. Its dual-axis sensing lets a single device capture both lateral and longitudinal vehicle deceleration events simultaneously, reducing PCB area and BOM cost relative to two discrete single-axis parts. Key feature highlights for engineers include dual-axis sensing in one IC, sensitivity of 20 mV/g (X) and 66.67 mV/g (Y) at 5 V supply, internal four-pole low-pass filter with a 400 Hz bandwidth, temperature compensation across the -40 °C to +125 °C automotive range, and separate analog outputs for each axis. The 20-pin SOIC wide-body (WSOIC) package provides robust mechanical lead strength suitable for under-hood mounting and through-reflow automotive assembly. Architecturally, the MMA3204KEGR2 uses a surface-micromachined capacitive sensing element with on-chip CMOS signal conditioning. The four-pole active low-pass filter limits aliasing and broadband mechanical noise, and the ratiometric output makes sensitivity scale linearly with VDD - a feature that simplifies ADC scaling in 5 V microcontroller front-ends. The part's automotive qualification (AEC-Q100) and Last Time Buy lifecycle status position it as a mature solution for end-of-life redesign planning. Typical applications include automotive airbag crash sensors, electronic stability control rollover detection, ride-height and suspension travel sensing (Y axis), industrial shock and vibration monitoring, and ruggedized equipment tilt and impact logging. Its high-g range makes it especially suited to crash-detection events that exceed the dynamic range of consumer-grade accelerometers. When designing with this part, note that its lifecycle status is Last Time Buy and that Rochester Electronics holds the active stock franchise; engineers should plan volume purchases before the part enters obsolescence, or evaluate same-family alternatives such as MMA3201KEG and MMA3202KEG that share the same package and pinout. This page synthesizes Verified Web Data, distributor stock information, and drop-in alternative guidance not found in any single manufacturer document, giving engineers a single-decision-tree view of the part.
MMA3221EGR2 - ±50g/±20g Dual-Axis Analog Accelerometer | NXP
The NXP Semiconductors MMA3221EGR2 is a surface-mount, dual-axis (X and Y) silicon capacitive, micromachined accelerometer with integrated signal conditioning and a 4-pole low-pass filter, supplied in a 20-pin SOIC package. It measures acceleration on the X axis up to ±50g and on the Y axis up to ±20g with a bandwidth of 400 Hz, delivering an analog voltage output proportional to acceleration. An accelerometer is a MEMS (micro-electromechanical systems) sensor that converts gravitational or mechanical acceleration into a measurable electrical signal. In the system hierarchy, it sits within motion sensors, which are a subset of inertial measurement units (IMUs) and, more broadly, sensors. Capacitive MEMS accelerometers detect displacement of a proof mass via changes in capacitance between interdigitated comb fingers, then convert that capacitance change into a voltage using on-chip signal conditioning. Key features of the MMA3221EGR2 include independent full-scale ranges per axis (X: ±50g, Y: ±20g), a 4-pole low-pass filter for noise bandwidth limiting, integrated signal conditioning, and ratiometric analog output. The device operates from a single 5.0 V supply and includes self-test capability and over-range protection. Its robust SOIC-20 package is designed for surface-mount assembly and is well suited to high-vibration environments. The MMA3221EGR2 uses a silicon capacitive MEMS proof mass with on-chip ASIC signal conditioning. The architecture includes a precision charge integrator, temperature compensation, and a 4-pole active low-pass filter. The ratiometric analog output simplifies ADC interfacing and improves noise immunity in industrial environments. Per the manufacturer datasheet, the device provides stable sensitivity across the -40 °C to +105 °C operating range. Typical applications include airbag deployment systems and crash detection, vehicle stability control and rollover sensing, industrial vibration monitoring, tilt and inclination sensing in harsh environments, and tilt measurement for heavy machinery. Independent X/Y full-scale ranges allow the X axis to capture high-g crash events while the Y axis measures lower-g rollover events from a single sensor. When designing with this part, ensure adequate PCB decoupling near the supply pin and use ratiometric ADC conversion to cancel supply noise. Route the analog outputs away from high-current switching traces to preserve signal integrity. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
MMA5112KW - ±120g Z-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5112KW is a ±120g Z-axis (vertical-axis) overdamped PSI5 satellite accelerometer in a 16-pin QFN (6x6 mm) package designed for airbag crash detection and automotive restraint systems. It is part of the Xtrinsic MMA51xxKW SafeAssure family of PSI5 Version 1.3 compatible devices, with integrated PSI5 communication, on-chip signal conditioning, and a SafeAssure functional-safety pedigree suitable for ASIL-rated automotive safety applications. An automotive inertial sensor is a MEMS transducer that converts mechanical acceleration into a proportional electrical signal for downstream crash-decision or rollover logic. PSI5 (Peripheral Sensor Interface 5) is a two-wire, current-driven digital interface standardized for automotive sensor applications. The MMA5112KW sits at the front end of the airbag sensor cluster, receiving power over the PSI5 bus and back-transmitting digitized acceleration frames synchronously to the satellite ECU. Key features include a full-scale range of ±120 g along the Z axis, a 16-pin QFN (HQCCN) surface-mount package, automotive temperature grade, and overdamped mechanical response for clean crash-pulse fidelity without ringing. The PSI5 interface handles both power delivery and bidirectional digital communication, eliminating the need for a separate analog output harness. The part is qualified to NXP SafeAssure functional-safety process flows. The device integrates a surface-micromachined MEMS sensing cell, a sigma-delta ADC front end, PSI5 protocol framing, and diagnostic logic that reports internal faults over the PSI5 status field. Its wide supply range, integrated overvoltage and reverse-polarity tolerance on the PSI5 bus, and self-test capability make it a robust front end for harsh under-seat or B-pillar satellite installations. Typical applications include front, side, and rear airbag satellite sensors, knee airbag crash sensors, rollover detection satellite modules, and pre-crash occupant positioning sensors - anywhere a z-axis PSI5 satellite must discriminate crash severity during the first few milliseconds of an event. Designers should keep the PSI5 bus decoupling tight (typically 100 nF at the sensor pins), observe NXP's PSI5 bus-topology EMC guidelines, and route the device's GND paddle to a low-impedance plane to preserve signal integrity on the PSI5 Manchester-coded output. This page synthesizes distributor pricing, drop-in alternatives sourced from NXP cross-reference data, and practical PSI5 design notes not found in the summary datasheet excerpts.
MMA5112KWR2 - ±120g Z-Axis PSI5 Accelerometer | NXP | 16-QFN
The NXP MMA5112KWR2 is a single-axis Z-axis overdamped satellite accelerometer from the Xtrinsic MMA51xxKW family, offering a full-scale range of ±120g in a 16-pin QFN (6x6 mm) package with exposed pad. It interfaces via the PSI5 (Peripheral Sensor Interface 5) Version 1.3 automotive protocol and is qualified as an AEC-Q100 solution under NXP's SafeAssure program for safety-critical chassis applications. An accelerometer is a micro-electromechanical (MEMS) sensor that converts linear acceleration into a proportional analog or digital output. Within the broader sensor hierarchy, the MMA5112KWR2 sits as: MEMS accelerometer -> inertial sensor -> motion sensor -> sensor IC -> semiconductor. PSI5 accelerometers are specifically designed for satellite (peripheral) nodes in automotive safety systems, communicating on a daisy-chained two-wire current loop that is robust against EMC and ground offset. Key differentiating features include a ±120g measurement range, overdamped mechanical response (no resonance peak within the bandwidth), 4.2 V to 17 V supply range compatible with automotive 12 V bus systems, and an integrated PSI5 transceiver supporting standard PSI5 v1.3 frame formats. The overdamped architecture eliminates aliasing and spurious high-frequency excitation, making the part well-suited to crash detection and airbag pre-crash sensing where mechanical ringing would corrupt the deceleration profile. The device uses NXP's high-aspect-ratio MEMS element with signal conditioning ASIC integrated in the same QFN package. The sensor element is hermetically sealed and factory-trimmed for sensitivity and offset, eliminating the need for external calibration. The PSI5 interface supports both 10-bit and 12-bit data widths, asynchronous and synchronous sampling modes, and X/Y/Z synchronization across multiple satellite nodes. Typical applications include frontal airbag crash sensors, side-impact pre-crash detection, pedestrian protection satellite modules, and rollover detection in advanced airbag systems. The 6x6 mm QFN footprint is the standard footprint for PSI5 satellite accelerometers, enabling PCB layout reuse across a platform. When designing with this device, ensure the PSI5 bus termination resistor and protection circuitry are correctly sized for the 12 V automotive battery environment, and observe AEC-Q100 thermal and vibration qualifications on the host PCB. The exposed thermal pad must be connected to ground for mechanical stability and thermal dissipation. This page synthesizes distributor stock, AEC-Q100 qualification data, drop-in family-member alternatives, and PCB-level design notes for satellite airbag applications that are not consolidated on the manufacturer product page.
MMA5124KW - ±240g Z-Axis PSI5 Inertial Sensor | NXP
The NXP Semiconductors MMA5124KW is a SafeAssure PSI5 Version 1.3-compatible, overdamped Z-axis satellite accelerometer with a ±240g full-scale range, housed in a 16-pin QFN (6x6 mm) package. It belongs to the Xtrinsic MMA51xxKW family of AKLV27-compatible satellite sensors designed for harsh automotive crash detection environments. The device operates from a 4.2V to 17V supply, integrates on-chip signal conditioning, and communicates via the PSI5 (Peripheral Sensor Interface) v1.3 protocol over a two-wire current-loop interface. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes; the MMA5124KW specifically senses acceleration along the Z-axis only. Within the broader sensor taxonomy, the part belongs to the class of single-axis high-g accelerometers used in automotive airbag and satellite-sensor subsystems. The PSI5 interface (Peripheral Sensor Interface, version 1.3) is a standardized digital communication protocol widely adopted in automotive safety electronics for connecting remote satellite crash sensors to a central airbag control unit (ACU). Key specifications of the MMA5124KW include a ±240g measurement range, overdamped mechanical frequency response designed for crash pulse capture, integrated PSI5 v1.3 transmitter, on-chip EEPROM for calibration, low-power standby mode, and SafeAssure functional-safety documentation. The device's overdamped response avoids saturation from the high-frequency, high-amplitude crash pulses typical of airbag deployment scenarios. The MMA5124KW is built on NXP's high-g MEMS process with a sealed cavity QFN package qualified to automotive grade requirements. Its integrated PSI5 interface eliminates the need for an external ADC, simplifying satellite module design. The device supports daisy-chain topologies and offers 10-bit Manchester-coded PSI5 data transmission with configurable sampling rates. Typical applications include front and side airbag satellite sensors, pedestrian protection impact modules, and peripheral crash detection nodes. The 16-QFN (6x6) package suits compact PCB layouts typical of satellite sensor modules mounted at vehicle periphery locations. When designing with this part, observe PSI5 bus termination and synchronization timing as specified in the NXP datasheet. Use the integrated EEPROM for per-module calibration to compensate mounting-position tolerances. Maintain supply decoupling within 5 mm of the VCC pin and follow NXP's reference layout for EMI/ESD performance under automotive conditions. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. The MMA5124KW is engineered for AKLV27 protocol compatibility, enabling retrofit into existing automotive safety architectures.
MMA5148KW - ±480g Z-Axis PSI5 Satellite Accelerometer | NXP
The NXP Semiconductors MMA5148KW is a ±480g Z-axis (vertical-axis) overdamped satellite accelerometer designed for PSI5 (Peripheral Sensor Interface 5) and AK-LV27 in-vehicle networks. It is part of the Xtrinsic MMA51xxKW family of SafeAssure sensors, housed in a 16-pin QFN (6x6 mm) surface-mount package. The device supports supply voltage of 4.2V to 17V and uses PCM/SPI digital output for high-speed communication with the satellite ECU. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes. In automotive safety systems, satellite accelerometers like the MMA5148KW reside in peripheral nodes (crash zones, doors, pillars) and transmit inertial data to a central airbag control unit (ACU). The PSI5 protocol is an open standard for point-to-point sensor interfaces widely used in airbag, seatbelt pretensioner, and pedestrian protection systems. Key features include ±480g full-scale measurement range, overdamped mechanical response for accurate pulse detection, 16-QFN small outline package, and a wide operating temperature range suitable for under-hood and crash-zone deployment. The device is part of the NXP SafeAssure functional-safety program (FMEDA and safety manuals available), supporting ISO 26262 ASIL ratings when integrated properly. Architecturally, the MMA5148KW integrates a MEMS g-cell with a CMOS ASIC that provides signal conditioning, temperature compensation, and a digital PSI5 interface. The overdamped sensor element reduces mechanical ringing after high-g events, enabling the central ECU to discriminate multiple crash pulses that occur within milliseconds. Typical applications include front and side airbag satellite sensors, crash detection modules, seatbelt pretensioner sensors, and pedestrian protection accelerometer nodes. Its PSI5 compatibility allows direct connection to NXP, Infineon, Renesas, and other automotive-grade airbag controllers. When designing with this device, follow NXP's reference layout in the datasheet, place decoupling capacitors within 2 mm of the supply pins, and validate the PSI5 bus timing against the v1.3 specification to ensure interoperability with the target ECU. The device is qualified to AEC-Q100, making it suitable for automotive production. This page synthesizes distributor pricing, drop-in alternatives within the MMA51xx family, and practical design notes not found in a single manufacturer page, giving engineers a consolidated reference for satellite accelerometer selection.
MMA5148KWR2 - Z-Axis 480g PSI5 Accelerometer | NXP
The NXP MMA5148KWR2 is a Z-axis, ±480g-range overdamped silicon MEMS accelerometer from the Xtrinsic MMA51xxKW PSI5 family, housed in a 16-pin QFN (6x6 mm) package. Designed as a SafeAssure solution for automotive satellite sensor applications, it is AKLV27 and PSI5 Version 1.3 compatible, with the full-scale range and bandwidth optimized for satellite crash-sensing use cases. The device communicates over the PSI5 (Peripheral Sensor Interface 5) two-wire current-loop protocol commonly used in airbag and restraint systems. An accelerometer is a micro-electromechanical sensor that measures proper acceleration (the rate of change of velocity) along one or more axes. The MMA51xxKW family sits within the broader taxonomy of inertial sensors, sitting beside gyroscopes in the IMU (Inertial Measurement Unit) category. Within the accelerometer family, the MMA51xxKW parts are single-axis (Z-axis only) overdamped devices specifically tuned for the high-shock, high-bandwidth regime of automotive crash sensing, where they must remain accurate under sustained vibration and instantaneous g-loads. Key features include a ±480g full-scale range, overdamped mechanical response for crash-pulse fidelity, on-chip PSI5 transponder, optional Manchester-coded or PSI5-A/B/C operating modes, and a wide operating temperature range. The 16-QFN (6x6 mm) package supports surface-mount assembly with an exposed pad for thermal dissipation, and the part is qualified to automotive quality standards typical of NXP SafeAssure family members. The KWR2 suffix denotes tape-and-reel packaging. At the architecture level, the device integrates a MEMS sensing element with a signal-conditioning ASIC in a single overmolded QFN. The overdamped mechanical transfer function eliminates high-Q resonant ringing, which is critical when capturing short-duration crash pulses; a less-damped sensor would ring and corrupt the deceleration profile read by the satellite ECU. Typical applications include front and side airbag satellite sensors, restraint-system electronic control units, and PSI5 daisy-chain satellite modules. It is also used in body and chassis electronic safety systems. When designing with this part, engineers should pay close attention to the PSI5 synchronization and parity protocol, the daisy-chain initialization sequence, and the requirement to configure the g-slave address range during ECU bring-up.
MMA5206KW - PSI5 X-Axis 60g Accelerometer | NXP Semiconductors
The NXP Semiconductors MMA5206KW is a PSI5 (Peripheral Sensor Interface 5) inertial sensor designed as a single-axis X-direction accelerometer with a full-scale range of ±60g and a 400 Hz maximum bandwidth, housed in a 16-pin QFN (6x6 mm) package with exposed pad. It belongs to the NXP Xtrinsic MMA52xxKW family of automotive-grade inertial sensors and operates over a wide 5V/9V/12V/15V supply range with automotive temperature grade. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes and outputs a signal proportional to that force, enabling detection of motion, tilt, vibration, and shock. Within the broader sensor taxonomy, a single-axis accelerometer like the MMA5206KW sits under MEMS motion sensor -> accelerometer -> inertial measurement unit -> sensor -> semiconductor. PSI5 is an automotive sensor interface standard used to power the sensor and transmit synchronous or asynchronous sensor data on the same two-wire bus at 125 kbps, eliminating dedicated signal wires. Key features of the MMA5206KW include ±60g full-scale range for high-shock sensing, 400 Hz signal bandwidth, automotive temperature grade qualification, integrated PSI5 transceiver with on-chip sync/transmit logic, and a small 6x6 mm QFN-16 footprint suitable for space-constrained safety-critical modules. The exposed thermal pad improves thermal coupling and mechanical stability when soldered to a PCB ground pour. Technically, the device combines a MEMS g-cell with a mixed-signal ASIC that performs amplification, offset compensation, and PSI5 protocol generation. A key design consideration is the external capacitor on the VCC node for energy storage during PSI5 synchronization pulses. According to the manufacturer datasheet, this capacitor is required because PSI5 supplies the sensor through a current-limiting resistor, and the sensor must buffer the charge internally. Typical applications include airbag front crash sensors, side-impact satellite sensors, rollover detection modules, and pedestrian-protection impact sensors. The ±60g range suits high-deceleration crash events while the PSI5 interface supports daisy-chained wiring common in airbag electronic control units. When designing with this part, place the VCC storage capacitor as close as possible to pin 1 with a low-ESR ceramic, and route the IDATA line through the recommended PSI5 current-setting resistor. Verify the synchronization timing budget because PSI5 is a time-deterministic protocol that requires precise bus arbitration among multiple satellite sensors.
MMA5212AKW - ±120g PSI5 X-Axis Accelerometer | NXP
The NXP Semiconductors MMA5212AKW is an overdamped X-axis satellite accelerometer supporting PSI5 V1.3 asynchronous mode, with a full-scale range of ±120 g, housed in a 16-pin QFN (6 x 6 mm) HQCCN package. It belongs to the Xtrinsic MMA52xxAKW family, a SafeAssure functional-safety solution targeting automotive airbag and passive-safety satellite sensor nodes. Background: A PSI5 accelerometer is a peripheral satellite sensor (PSS) in an automotive restraint system that communicates over the PSI5 (Peripheral Sensor Interface 5) two-wire current-loop bus. It converts mechanical acceleration into a digital PSI5 frame that the central airbag ECU uses to decide when to deploy restraints. The hierarchy is: accelerometer -> inertial sensor -> motion sensor -> MEMS sensor -> semiconductor IC. The X-axis designation indicates single-axis sensing along one in-plane axis, making the device ideal for frontal or peripheral impact detection modules. Key features include 16-bit data output representation, a sensitivity of approximately 0.244 mV/g (based on 120 g full-scale), a typical 5.0 V supply rail, and automotive-grade qualification (AEC-Q100). The overdamped mechanical transducer suppresses high-frequency vibration, eliminating aliasing noise before the digital PSI5 frame is transmitted. The 16-QFN (6 x 6 mm) HQCCN package provides a small PCB footprint suitable for tight satellite-module enclosures. Technically, the device integrates a MEMS proof-mass transducer with a sigma-delta conversion chain and an embedded Manchester-coded PSI5 transceiver. Synchronization and data framing are managed by an on-chip state machine, and the part supports external sync pulses from the ECU for time-multiplexed multi-satellite configurations. Internal diagnostics and SafeAssure documentation assist ISO 26262 system integration at the ECU level. Typical applications include front airbag satellite sensors, side-impact satellite modules, and pedestrian-protection satellite accelerometers that require a PSI5 interface. The automotive operating range and SafeAssure positioning also make it suitable for rollover detection satellite nodes. When designing with the MMA5212AKW, ensure correct PSI5 bus termination per the PSI5 V1.3 specification, observe TVS protection on the two-wire interface, and follow NXP's recommended PCB footprint for the HQCCN-16 6 x 6 mm package. Refer to the manufacturer datasheet for the latest initialization timing diagrams and sync-modes table. This page synthesizes distributor pricing, same-family PSI5 alternatives, and practical design notes not consolidated in the manufacturer datasheet.
MMA5212AKWR2 - ±120g X-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5212AKWR2 is a single-axis, X-lateral MEMS accelerometer with a ±120g full-scale range, designed as a peripheral airbag satellite sensor that communicates over the PSI5 (Peripheral Sensor Interface 5) Version 1.3 asynchronous-mode bus. Housed in a 16-pin QFN exposed-pad package (6 mm × 6 mm), the device combines an overdamped MEMS sensing element with a built-in ASIC that performs on-chip signal conditioning, temperature compensation, and PSI5 frame formatting. An accelerometer is a micro-electromechanical sensor that converts physical acceleration into a measurable electrical signal. Within the broader sensor hierarchy, it sits at the inertial sensor family, sharing the category with gyroscopes, magnetometers, and 6-axis IMUs. The MMA52xxAKW family is positioned at the automotive-grade peripheral satellite node in a PSI5 airbag network, where it reports crash-relevant deceleration events to a central airbag ECU. Key features include a 5 V / 9 V / 12 V / 15 V compatible PSI5 interface, internal self-test, automotive temperature grade qualification, and a -40 °C to +125 °C operating range. The overdamped mechanical transfer function suppresses high-frequency vibration that would otherwise cause false crash triggers in rough-road or door-slams scenarios. The device is a NXP SafeAssure solution, meaning it has been developed and documented under NXP's functional-safety process to support ISO 26262 systems. Architecturally, the part uses a capacitive MEMS proof mass with sigma-delta conversion and digital post-processing, which provides low noise and stable sensitivity over temperature without external trimming. The PSI5 peripheral mode frames deliver acceleration data, status bits, and a 10-bit temperature word each synchronization cycle. Typical applications include front or side satellite airbag sensors, pedestrian protection modules, and chassis-condition monitoring nodes. Design considerations include placing the recommended 2.2 nF / 470 pF / 15 nF external capacitor network (C1–C5) within a few millimeters of the supply and data pins to maintain PSI5 signal integrity and EMC margins. This page consolidates distributor pricing, drop-in cross-family alternatives, and PCB layout notes the NXP safety manual only summarizes, so engineers can validate sourcing and footprint fit on a single page.
MMA5212KW - ±120g X-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5212KW is an overdamped single-axis X-axis satellite accelerometer with ±120g full-scale range, 400 Hz bandwidth, and PSI5 (Peripheral Sensor Interface 5) Version 1.3 compatible digital output, housed in a 16-pin QFN (6x6 mm) package with exposed pad. It is a member of the Xtrinsic MMA52xxKW family, a SafeAssure functional-safety solution, and is AKLV27 protocol compatible for airbag satellite applications. The device operates from a single 5V/9V/12V/15V supply rail selectable by protocol command, integrates a g-cell MEMS sense element with a Sigma-Delta ADC, and outputs an 11-bit Manchester-coded PSI5 digital frame. A satellite accelerometer is a single-axis MEMS sensor mounted at the periphery of a vehicle (e.g., door pillar, bumper reinforcement, or seat rail cross-member) that detects crash-pulse deceleration early in an event and reports it to a central airbag ECU over a two-wire current-loop PSI5 bus. The MMA5212KW belongs to the inertial sensor -> accelerometer -> MEMS accelerometer -> safety sensor taxonomy and is qualified to automotive-grade temperature ranges (-40C to +125C) with full AEC-Q100 conformance. Key features include overdamped mechanical response (no resonance peak within the 400 Hz bandwidth), user-selectable 5V/9V/12V/15V supply rail (PSI5 V1.3 compliance), 11-bit output resolution plus optional 2-bit self-test/status, integrated diagnostics, and SafeAssure documentation. The exposed thermal pad (EP) provides a low-resistance thermal path to PCB copper, essential for reliable operation across automotive temperature extremes. Typical applications include front and side impact satellite sensors, airbag ECU peripheral nodes, pedestrian protection bumper-mounted sensors, and seat rail occupant classification systems. The PSI5 Manchester-coded two-wire interface allows daisy-chaining of multiple satellites on one ECU input, simplifying wiring harness complexity. When designing with this device, ensure the PSI5 current-loop termination resistor and blocking capacitor values follow the PSI5 V1.3 specification. The exposed pad must be soldered to a continuous PCB copper ground plane to meet the AEC-Q100 thermal-cycling and mechanical-shock reliability targets.
MMA5212KWR2 - 120g X-Axis PSI5 Inertial Sensor | NXP Semiconductors
The NXP Semiconductors (formerly Freescale) MMA5212KWR2 is a 120g range, single-axis (X-axis) overdamped PSI5-compatible inertial accelerometer housed in a 16-pin QFN (6x6) package with exposed thermal pad. The device is part of the Xtrinsic MMA52xxKW SafeAssure family, supports AKLV27 and PSI5 Version 1.3 protocols, and is qualified for automotive satellite crash-sensing applications. It operates with supplies of 5V, 9V, 12V, and 15V, which are the standard PSI5 power modes supported by airbag ECU receivers. A PSI5 Inertial Sensor is a self-contained satellite accelerometer that communicates with the host ECU over the Peripheral Sensor Interface 5 (PSI5) automotive standard, a two-wire current-loop interface widely adopted for airbag front and side satellite crash sensors. Within the broader sensor taxonomy, PSI5 inertial sensors belong to MEMS accelerometers, which fall under the accelerometer, motion sensor, and inertial measurement unit family (accelerometer -> motion sensor -> inertial sensor -> MEMS sensor -> semiconductor). The PSI5 standardized bus allows multiple sensors to share wiring and simplifies airbag restraint system architecture. Key features of the MMA5212KWR2 include a +/-120g full-scale measurement range, low-pass overdamped frequency response optimized for crash pulse capture, integrated PSI5 Manchester/Half-Bit data transmission, on-board self-test capability, and AKLV27 protocol compatibility. The accelerometer's overdamped mechanical transfer function eliminates the need for external low-pass filtering for crash pulse characterization, while integrated EEPROM stores calibration coefficients for sensitivity and offset compensation at production trim. Architecturally, the device integrates a surface-micromachined MEMS proof mass, a sigma-delta front-end, and a PSI5 transceiver with on-chip temperature compensation. The overdamped mechanical response is engineered to have a flat frequency response within the airbag crash-pulse bandwidth, while PSI5 synchronization supports time-multiplexed operation of up to four satellite sensors on a single ECU channel. The MMA5212KWR2 is specified for the automotive temperature grade (-40C to +125C). Typical applications include front and side airbag satellite crash sensors, seatbelt pretensioner sensors, knee airbag occupant detection, and pedestrian protection impact detection units. AEC-Q100 qualification, combined with PSI5 interoperability, makes the part particularly well-suited for distributed airbag architectures where each sensor is positioned remotely from the central ECU and communicates reliably over a single twisted pair. When designing with this device, follow the PSI5 bus wiring topology (twisted pair, daisy-chain or parallel configuration) and observe the ECU receiver synchronization requirements. Proper PCB layout includes a star ground reference, robust power supply decoupling at the device, and routing discipline to keep the PSI5 pair away from high-current switching traces to preserve signal integrity for crash-event measurement. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not aggregated in any single manufacturer datasheet view.
MMA5224AKW - 240g X-Axis PSI5 Inertial Accelerometer | NXP
The NXP MMA5224AKW is a PSI5-protocol X-axis inertial accelerometer with a ±240g full-scale range, housed in a 16-pin QFN (6x6 mm) package. It belongs to the Xtrinsic MMA52xxAKW family of automotive-grade sensors designed for crash detection and chassis control. The device integrates a MEMS sensing element with a SPI-compatible PSI5 (Peripheral Sensor Interface 5) digital interface supporting 10 kHz to 189 kHz baud rates. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes, converting mechanical motion into an analog or digital electrical signal. In the automotive electronics hierarchy, an accelerometer is a sub-category of motion sensors (itself a subset of inertial measurement units and sensors), used to detect vehicle dynamics events such as frontal crash, side impact, or rollover. The MMA52xxAKW family specifically targets airbag restraint systems and active chassis systems that demand deterministic, low-latency sensor communication. Key features include a ±240g measurement range, 10 kHz to 189 kHz programmable PSI5 communication baud rate, on-chip signal conditioning, and a self-test capability. The 16-QFN package provides a low-profile footprint suitable for space-constrained ECU modules mounted behind the bumper or under the seat. The sensor operates from a 5V, 9V, 12V, or 15V supply, accommodating typical automotive bus voltages without external regulation. Technically, the MMA5224AKW uses a surface-micromachined MEMS proof mass with capacitive sensing and a sigma-delta conversion chain. Internal calibration compensates for offset and gain over the -40C to +125C automotive temperature range, providing stable bias and sensitivity without host-side correction. The PSI5 protocol guarantees synchronous data sampling and a deterministic latency that is critical for airbag firing decisions. Typical applications include airbag systems (front, side, and rollover detection), electronic stability control, seatbelt pretensioners, suspension control modules, and pedestrian protection impact sensors. Designers choose this part when an automotive safety system requires a certified PSI5 sensor with high-g measurement capability. When designing with the MMA5224AKW, follow NXP's reference layout for the 16-QFN exposed pad - the thermal pad must be soldered to a copper pour for mechanical stability and EMI performance. Verify that the host MCU supports PSI5 v1.3 or v2.1 framing, and respect the synchronization timing window during bus arbitration. This page synthesizes distributor pricing, drop-in alternatives from the same Xtrinsic family, and practical layout guidance not found in the standalone datasheet.
MMA5224AKWR2 - ±240g X-Axis PSI5 Accelerometer | NXP
The NXP Semiconductors MMA5224AKWR2 is a Xtrinsic MMA52xxAKW PSI5 (Peripheral Sensor Interface 5) inertial sensor designed for single-axis X-direction acceleration measurement, housed in a 16-pin QFN (6x6 mm) package. The device measures ±240 g full-scale range, operates from a 4.2 V to 17 V supply, and is targeted at airbag deployment and chassis control applications in automotive safety systems. An accelerometer is a micro-electromechanical systems (MEMS) sensor that converts linear acceleration into an analog or digital electrical signal. In the broader sensor hierarchy, the MMA5224AKWR2 belongs to the high-g inertial sensor family used for crash detection, sitting between low-g motion sensors (used for tilt/inclinometer applications) and angular-rate gyroscopes. It is part of the wider power management and sensor ecosystem in modern automotive electronic stability systems. Key differentiating features include ±240 g measurement range optimized for frontal-impact airbag crash sensing, PSI5 v2.0 protocol compatibility for automotive sensor-peripheral interfacing, integrated Manchester/parasitic SPI modes for legacy compatibility, and AEC-Q100 automotive qualification. The device supports a 4.2 V to 17 V unregulated supply voltage rail commonly available from the vehicle's 12 V battery bus. The MMA5224AKWR2 uses a MEMS transducer with a capacitive sensing element and dedicated ASIC signal chain that performs amplification, temperature compensation, and PSI5 frame encoding on-chip. The internal oscillator and Manchester decoder allow direct connection to an airbag control unit (ACU) over a two-wire PSI5 bus, reducing wiring harness complexity. The 16-QFN package provides a small board footprint with excellent thermal dissipation for under-hood mounting. Typical applications include front airbag crash sensors, side-impact pressure/event sensors, seatbelt pretensioner sensors, and chassis control rollover detection. The wide operating temperature range and AEC-Q100 qualification suit it also under the hood and within safety-critical restraint systems. When designing with this part, engineers should follow NXP's PSI5 bus termination and synchronization timing guidelines to maintain EMC compliance. Power decoupling and reverse-polarity protection at the supply input are also recommended per the datasheet application circuit. This page synthesizes distributor pricing, pin-compatible MMA52xx family alternatives, and practical design notes not found in the manufacturer datasheet alone.
MMA5224KW - ±240g X-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5224KW is an overdamped X-axis satellite accelerometer from the Xtrinsic MMA52xxKW family, supporting AKLV27 and PSI5 Version 1.3 protocols with ±240 g full-scale range, supplied in a 16-pin QFN (HQCCN) 6x6 mm package. It is a SafeAssure solution targeting airbag crash-sensing satellite modules where high-g events must be digitised and reported over the PSI5 current-loop bus to a central airbag ECU. An accelerometer is a micro-electro-mechanical (MEMS) sensor that converts linear acceleration into an analog or digital output proportional to displacement of a proof mass. Within the broader automotive sensor hierarchy, the MMA5224KW sits in the high-g (>100 g) crash-sensor hypernym tier above low-g vehicle dynamics sensors (e.g., electronic stability control) and below gyroscopes, IMUs, and full 6-DOF inertial measurement units. It is an axis-specific (single-axis X) over-damped sensor, a category valued in airbag systems for flat phase response and pulse fidelity during a crash event lasting 5-70 ms. Key features include an integrated PSI5 v1.3 transceiver with 10-bit data length, Manchester coding, and selectable bit rates of 125 kbps or 250 kbps; onboard synchronous sampling; bidirectional communication; and 16 programmable PSI5 addresses. The device operates from a regulated 5 V supply on a low-power Manchester-coded current loop, with a typical standby current well below 1 mA to avoid draining the satellite wiring harness during ignition-off crash sensing. Internally, the MMA52xxKW die uses a hermetically-sealed silicon bulk-micromachined proof mass with capacitive differential readout, sigma-delta conversion, and a digital PSI5 communication block. Over-damped mechanical response is deliberately chosen (versus critically-damped) to avoid ringing artefacts at the airbag ECU's crash-algorithm input, providing cleaner pulse reconstruction than under-damped competitor parts. Typical applications include front, side, and rear impact satellite crash sensors, pedestrian protection satellite modules, and AKLV27 vehicle network peripherals. The 16-QFN (6x6) package carries automotive-grade qualification (AEC-Q100) needed for under-bumper or seat-mounted satellite placement. Designers must route the PSI5 two-wire current loop as a twisted pair back to the ECU, maintain the recommended decoupling network close to VDD, and respect the absolute maximum acceleration rating to avoid latched mechanical damage. This page synthesises XAIPART distributor pricing, drop-in alternative MPNs, and practical PCB implementation notes not found on the single distributor listings.
MMA621010AEG - ±100g Dual-Axis Analog Accelerometer | NXP
The NXP MMA621010AEG is a dual-axis (X and Y) silicon capacitive, micromachined analog accelerometer with a ±100 g measurement range, housed in a 20-pin SOIC wide-body (SOIC-20) package. It operates from a single 3.3 V or 5 V supply and delivers an analog output sensitivity of 4.68 mV/V/g, making it suitable for high-shock event capture in automotive and industrial systems. An accelerometer is a micro-electromechanical sensor (MEMS) that measures proper acceleration along one or more axes, converting mechanical inertial force into an electrical signal proportional to g-force. Within the sensor hierarchy, an accelerometer belongs to the inertial sensor family, which also includes gyroscopes and IMUs (inertial measurement units); it sits at the lowest tier of motion-sensing signal chain components, downstream of the mechanical event and upstream of an ADC or microcontroller for digital conversion. Key features of the MMA621010AEG include integrated digital signal processing for filter, trim, and data-formatting functions; over-damped transducer response to suppress resonance-induced errors; and a -40 °C to +105 °C operating range for automotive underhood and chassis deployments. The 20-pin SOIC wide package simplifies PCB layout compared to smaller LGA footprints used in many competing parts. Technically, the device combines a surface-micromachined capacitive sense element with a sigma-delta modulation stage and decimation filter, yielding a flat ±100 g dynamic range with deterministic g-to-voltage transfer. Internal factory calibration sets zero-g offset and sensitivity, so most applications can omit external compensation. The dual-axis X-Y orientation simplifies system BOM by replacing two single-axis parts. Typical applications include airbag deployment sensors, electronic stability control (ESC) rollover detection, vehicle dynamic control (VDC) modules, anti-lock braking systems (ABS), industrial vibration monitoring, and crash recorders. The 4.68 mV/V/g sensitivity at 5 V yields about 23.4 mV/g, which is convenient for direct ADC sampling without additional amplification. When designing with this part, allocate at least 10 mm² of copper ground pour beneath the package thermal/epad to manage self-heating and to reduce coupled electrical noise. Use a low-impedance analog supply with a 100 nF ceramic bypass within 5 mm of the VDD pin; avoid routing digital switching signals across the die shadow to prevent coupled disturbance into the analog output. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes that are not aggregated in the manufacturer datasheet, providing engineers a single-decision resource for selecting and sourcing the MMA621010AEG.
MMA6231Q - ±10g Dual-Axis Micromachined Accelerometer | NXP
The NXP MMA6231Q is a ±10g dual-axis capacitive micromachined accelerometer integrated circuit with on-chip signal conditioning, a 1-pole low-pass filter and factory-set temperature compensation, housed in a 16-pin QFN-EP (6 mm × 6 mm) surface-mount package. It senses acceleration along the X and Y axes, operates from a single 3.3 V supply (2.7 V to 3.6 V range), and delivers a nominal sensitivity of 120 mV/g with a measured range documented from 111 mV/g to 129 mV/g across parts. Output zero-g offset, full-scale span and filter cut-off frequency are factory-trimmed, so no external components are required beyond supply-decoupling capacitors. A micromachined accelerometer is a MEMS (Micro-Electro-Mechanical Systems) device that converts acceleration into a measurable electrical signal using a suspended proof mass whose capacitance changes under inertial force; signal conditioning ASICs then convert this into an analog voltage proportional to acceleration. The MMA6231Q belongs to the broader family of motion and position sensors, sitting under inertial sensors → accelerometers → surface-mount MEMS accelerometers. The device is qualified for lead-free and RoHS-compliant assembly, with self-test capability verifying the full signal path. Key features include a ±10 g full-scale range, typical 120 mV/g sensitivity, 300 Hz bandwidth (with internal low-pass filter cut-off settable within this range), a wide supply range of 2.7 V to 3.6 V, very low current consumption (typically a few mA during operation), and an internal self-test mechanism that electronically deflects the proof mass to validate sensor and ASIC functionality. The factory-trimmed architecture eliminates per-board calibration for many consumer and industrial tilt, vibration and motion-detect applications. At its core, the MMA6231Q uses a capacitive bridge sensing cell whose differential output is amplified, filtered and offset-adjusted by on-chip CMOS analog front-end circuitry. The 1-pole RC low-pass filter limits high-frequency mechanical and electrical noise. Because zero-g offset, sensitivity and filter cut-off are laser-trimmed at the factory, part-to-part variation is significantly reduced compared to discrete MEMS solutions requiring external calibration. Typical applications include tilt and inclination sensing, vibration monitoring, appliance and industrial equipment motion detection, automotive security systems, consumer electronics orientation, and general-purpose dual-axis motion and position sensing. The small 6 × 6 mm QFN package is well suited to compact PCB layouts where board space is constrained. When designing with this part, place the recommended 0.1 µF supply-decoupling capacitor as close to the VDD and GND pins as possible to minimize digital noise coupling. For accurate tilt measurements, mount the device on a vibration-isolated section of the board so that high-frequency PCB vibrations do not alias into the measurement band. This page synthesizes distributor availability, drop-in alternatives, application examples and design notes beyond the manufacturer datasheet to accelerate component evaluation and PCB redesign tasks.
MMA6231QR2 - ±10g Dual-Axis MEMS Accelerometer | NXP
The NXP MMA6231QR2 is a ±10g dual-axis (X, Y) capacitive micromachined accelerometer with integrated signal conditioning, a 1-pole low-pass filter, and factory-calibrated temperature compensation, housed in a 16-pin QFN-EP (6x6 mm) package with an exposed thermal pad. It measures acceleration along two perpendicular axes with a 300 Hz bandwidth and outputs an analog ratiometric signal scaled to the supply voltage. An accelerometer is a MEMS (micro-electromechanical systems) sensor that measures proper acceleration - the rate of change of velocity relative to free-fall - typically using a proof mass suspended by compliant springs whose displacement is sensed capacitively. The MMA6231QR2 belongs to the broader category of inertial sensors (accelerometers, gyroscopes, IMUs) under motion sensors, providing tilt, vibration, shock, and orientation data for embedded systems. It is the sensing front-end in a signal chain that typically feeds an ADC, microcontroller, or analog control loop. The ratiometric analog interface simplifies integration with 3.3 V or 5 V ADCs and MCU ADCs without level shifting. Key features include ±10g full-scale acceleration span, factory-set zero-g offset (no external trim required), 1-pole low-pass filter for noise bandwidth control, on-chip temperature compensation across -20C to +85C, and self-test capability activated through an external pin. The capacitive sensing cell produces a differential analog output proportional to applied acceleration, while the integrated ASIC amplifies, demodulates, and filters the signal before driving the output pin. The exposed thermal pad (EP) on the QFN-16 package provides a low thermal resistance path to PCB copper, improving mechanical stress relief and thermal dissipation in vibration/shock sensing. Typical applications include industrial vibration monitoring, tilt/inclination sensing for industrial controls, free-fall detection in hard-disk drives and portable electronics, automotive non-safety motion sensing (body electronics, headrest positioning, climate controls), gaming and pointing devices, and appliance anti-vibration control. Designers should observe the supply-voltage ratiometric behavior when calculating sensitivity, and add the recommended bypass capacitor close to VDD to suppress digital logic noise from coupling into the analog output. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
MMA6233QR2 - ±10g Dual-Axis Micromachined Accelerometer | NXP
The NXP MMA6233QR2 is a low-cost, capacitive micromachined dual-axis accelerometer with ±10g full-scale range, signal conditioning, a 1-pole low-pass filter, and temperature compensation, housed in a 16-pin QFN-EP (6x6 mm) package. It senses acceleration along the X and Y axes, providing an analog output proportional to applied g-force, with a bandwidth up to 900 Hz. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures the change in velocity (acceleration) along one or more axes, converting mechanical motion into an electrical signal. The MMA6233QR2 belongs to the MEMS accelerometer family, which sits within the broader hierarchy of motion sensors, then sensors, and finally the semiconductor product category. MEMS capacitive accelerometers detect motion by sensing the displacement of a proof mass between capacitive plates - a differential capacitance change that is demodulated and amplified to produce an analog voltage proportional to acceleration. Key features include factory-trimmed zero-g offset and full-scale span (no external calibration required), integrated 1-pole low-pass filtering for noise bandwidth control, on-board temperature compensation for stable output across -20C to +85C, and g-select input pins that allow the user to switch between ±10g and ±6g full-scale range dynamically. The device operates from a single 3.0V to 5.25V supply, drawing a low 2.5 mA typical supply current. The integrated g-select logic and self-test capability reduce external component count and simplify firmware calibration routines. Architecturally, the MMA6233QR2 uses a polysilicon capacitive sense element suspended over a silicon substrate; deflection of the proof mass modulates two nominally equal capacitors, and an on-chip ASIC performs charge integration, gain, and filtering. The analog output stage provides a ratiometric output centered at VDD/2 with sensitivity scaled to the supply voltage, simplifying ADC interface design. This architecture yields a robust sensor suitable for cost-sensitive consumer and industrial applications where digital interfaces are not required. Typical applications include tilt and inclination sensing, free-fall detection in hard-disk drives, vibration monitoring in industrial equipment, motion-activated user interfaces, and anti-theft alarm systems. The wide ±10g range and small 6x6 mm QFN-EP footprint make it a flexible choice for portable battery-powered designs. Compared to digital-output MEMS accelerometers (SPI/I2C), the analog ratiometric output of the MMA6233QR2 enables direct connection to an MCU ADC, minimizing firmware overhead. When designing with the MMA6233QR2, place 100 nF decoupling capacitors close to VDD and place a low-ESR bulk capacitor on the supply rail to reduce noise on the analog output. Use an op-amp buffer if the ADC input impedance is below 100 kohm to prevent measurement gain error. The exposed pad must be soldered to the PCB ground plane for thermal dissipation and electrical reference integrity.
MMA6260QR2 - ±1.5g Dual-Axis Accelerometer | NXP | 16-QFN-EP
The NXP MMA6260QR2 is a ±1.5g dual-axis micromachined capacitive accelerometer that integrates signal conditioning, a 1-pole low-pass filter, and temperature compensation on a single silicon die, housed in a 16-lead QFN-EP (6x6 mm) package with an exposed thermal pad. It reports acceleration along the X and Y axes through two analog outputs, with a factory-set 50 Hz bandwidth, a self-test pin, and g-select inputs for switching between full-scale ranges. What is an accelerometer? An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes and converts that physical displacement into an analog voltage or digital signal. In the broader sensor taxonomy, the MMA6260QR2 sits at: MEMS accelerometer → inertial sensor → motion sensor → semiconductor IC. It is used wherever a system needs to detect tilt, vibration, shock, or orientation in a compact, low-power surface-mount form factor. Key features include ±1.5g full-scale range on both axes, fully conditioned analog outputs, integrated temperature compensation, factory-trimmed zero-g offset and sensitivity, self-test capability, and a 1-pole low-pass analog filter with the cutoff factory-set to eliminate external RC components. The 16-QFN-EP package provides a thermal pad for stable operation across the -40 °C to +85 °C industrial range. Technically, the device uses a capacitive MEMS proof-mass structure whose differential capacitance changes with acceleration; on-chip CMOS ASIC converts this to a ratiometric analog voltage. Two g-select pins allow the user to command four sensitivity options (±1.5g / ±2g / ±4g / ±6g) by setting logic levels, and a logic-high on the self-test pin applies an electrostatic force to the proof mass for end-of-line verification. Typical applications include automotive airbag deployment detection, tilt and orientation sensing in consumer electronics, industrial vibration monitoring, gaming controllers, and HDD free-fall detection. The small 6x6 mm QFN package suits space-constrained PCB layouts. When designing with this part, place the device near the edge of the PCB where the mechanical stress is low, follow NXP's recommended footprint exactly, and tie unused outputs to ground through a high-impedance buffer to prevent crosstalk. This page consolidates distributor pricing, parameter cross-reference data, and practical layout notes that complement NXP's MMA6260Q datasheet.
MMA6261QR2 - ±1.5g Dual-Axis Analog Accelerometer | NXP
The NXP (formerly Freescale / Motorola) MMA6261QR2 is a dual-axis ±1.5g capacitive micromachined accelerometer in a 16-pin QFN-EP (6x6 mm) package. It integrates on-chip signal conditioning, a 1-pole low-pass filter, and temperature compensation, producing a calibrated analog output proportional to acceleration on both X and Y axes. Zero-g offset, full-scale span, and filter cut-off are factory-set so that no external trimming components are required in production. According to the NXP MMA6261 family datasheet, the device operates from a 2.7V to 3.6V single supply, typically draws 1.5 mA, and provides a 300 Hz analog bandwidth per axis with ratiometric analog outputs. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures proper acceleration, the rate of change of velocity relative to a free-fall reference frame. Within the broader sensor hierarchy, accelerometers belong to inertial measurement units (IMUs), sit alongside gyroscopes and magnetometers in 6-axis and 9-axis motion-tracking assemblies, and ultimately form part of motion-sensing subsystems in modern electronics. Dual-axis devices like the MMA6261QR2 simplify tilt, vibration, and shock measurement by integrating two orthogonal sensing axes on a single die. Key features include ±1.5g full-scale range, integrated signal conditioning with a 1-pole low-pass filter, factory-set zero-g offset and sensitivity, temperature compensation across -20C to +85C, and a self-test capability on both axes via dedicated logic pins. The analog output is ratiometric to the supply voltage, simplifying ADC interfacing without precision voltage references. The device uses a capacitive-sensing MEMS proof mass whose deflection modulates a differential capacitor bridge. A switched-capacitor front-end converts this capacitance change to a voltage, which is then filtered and amplified to produce the analog output. The integrated architecture eliminates the discrete op-amp and charge-pump stages required by older air-gap accelerometers. Typical applications include hard-disk drive free-fall protection, tilt and orientation sensing in consumer electronics, vibration monitoring in industrial equipment, gaming controllers, and portable medical devices. Designers value its small footprint, low power consumption, and the absence of external trimming components. When designing with the MMA6261QR2, place the recommended bypass capacitor within 5 mm of VDD and route the analog output traces away from switching regulators or digital clock lines to preserve the 300 Hz signal integrity. Self-test should be exercised at power-up or periodically for safety-critical applications such as HDD free-fall detection. This page synthesizes distributor pricing, parametric comparison with same-package cross-brand parts, and practical PCB-layout design notes that go beyond the manufacturer datasheet to accelerate your hardware bring-up.
MMA6262QR2 - ±1.5g X/Y Dual-Axis Accelerometer | NXP
The NXP MMA6262QR2 is a ±1.5g dual-axis (X, Y) capacitive micromachined accelerometer supplied in a 16-pin QFN-EP (6x6 mm) package with exposed thermal pad. It provides factory-calibrated sensitivity between 740 mV/g and 860 mV/g at a 3.3 V supply, includes a 1-pole low-pass filter with a 150 Hz cutoff, and integrated temperature compensation, eliminating the need for external trimming networks. An accelerometer is a micro-electromechanical sensor (MEMS) that measures the proper acceleration acting on a mass and converts that mechanical deflection into an electrical signal proportional to g-force. In the broader sensor taxonomy the MMA6262QR2 belongs to motion sensors, then accelerometers, then linear (non-tilt-switched) accelerometers, then single-/dual-axis MEMS devices. These parts sit above simple inclinometers and below full 6-axis inertial measurement units (IMUs) that combine a 3-axis accelerometer with a 3-axis gyroscope. Key features include signal conditioning on-chip, a g-select range fixed at ±1.5g, factory-set zero-g offset and full-scale span, low power consumption suitable for handheld and battery-powered equipment, and a -40 °C to +105 °C operating range that covers consumer and industrial environments. The integrated 150 Hz low-pass filter rejects high-frequency vibration and electrical noise without requiring external RC components. The device uses a surface-micromachined capacitive sense element with a sigma-delta modulator and dedicated ASIC for ratiometric analog output. Because the sensitivity is ratiometric to VDD, the same part can be used at 3.0 V or 5.0 V supplies with the appropriate output scaling, simplifying multi-rail designs. The exposed pad (EP) on the QFN package provides a low-impedance thermal and electrical ground path that must be soldered for specified performance. Typical applications include tilt and orientation sensing in handheld terminals, free-fall detection in hard-disk drives, motion-activated user interfaces, anti-theft / movement alarms, and vibration monitoring in industrial equipment. Its low current draw and small footprint also make it attractive for portable medical and fitness devices. When designing with this part, solder the exposed pad to a continuous ground pour to achieve mechanical stability and the rated sensitivity. Avoid placing switching regulators or high-current traces near the sense element to prevent conducted EMI from corrupting the analog output. Decouple VDD with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin. This page consolidates verified distributor pricing, pin-compatible NXP-family alternatives, and practical layout notes - synthesis beyond the standalone manufacturer datasheet. The MMA6262QR2 is now sourced primarily through authorized-distributor excess and Rochester Electronics as the original NXP line enters long-term support.