NXP Semiconductors MMA2202D

Overview

MMA2202D from Freescale Semiconductor (formerly Motorola) is a surface-mount, silicon capacitive micromachined accelerometer with integrated signal conditioning, 4th-order Bessel low-pass filtering, and factory-calibrated self-test. It delivers ±50g full-scale range, ratiometric linear output referenced to VDD, and operates across –40°C to +125°C in SOIC-16 packaging - used for hard drive protection, appliance control, and vibration monitoring.

For engineers reviewing the MMA2202D datasheet, MMA2202D pinout, MMA2202D application, or MMA2202D equivalent, key selection criteria include its calibrated self-test capability, transverse sensitivity ≤10% FSO, 360–440 Hz bandwidth, low-voltage detect threshold (2.7–4.0 V), and status pin fault latching for system-level reliability validation.

Technical Context

The MMA2202D integrates a polysilicon g-cell transducer hermetically sealed at wafer level with a CMOS ASIC performing switched-capacitor sensing, gain adjustment, temperature compensation, and 4-pole Bessel filtering. Its ratiometric output scales linearly with VDD (4.75–5.25 V), enabling supply-noise rejection in microcontroller ADC interfaces.

Self-test activation applies electrostatic force to the movable plate via dedicated ST pin, producing a calibrated 10–14 g output response. Fault detection monitors low-voltage condition (VLVD), clock oscillator frequency (fmin = 150–400 kHz), and EPROM parity - all latched on STATUS pin until reset by ≥100 µs ST pulse.

Key Specifications

Pinout & Package

Package: 16-lead SOIC (Case 475-01), body dimensions 10.15–10.45 mm × 7.40–7.60 mm × 3.30–3.55 mm, lead pitch 1.27 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-axis analog-output accelerometer applications.

Compared with ADXL322 and MMA8451Q, the MMA2202D uniquely combines analog ratiometric output, factory-calibrated self-test, and latchable STATUS pin in a single SOIC-16 package - making it optimal for cost-sensitive, high-reliability analog-signal-chain designs where diagnostic autonomy is mandatory.

Availability

MMA2202D is available at Aetrix Electronics and suitable for hard drive protection, appliance control, and computer peripheral applications requiring stable component supply, long-lifecycle support, and automotive-grade temperature resilience.

Supply support for MMA2202D 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

Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors and sensors, known for automotive, industrial, and consumer ICs with robust qualification and long-term support.

The MMA2202D belongs to Freescale's legacy micromachined accelerometer product line, engineered specifically for high-reliability analog inertial sensing in environments demanding wide temperature operation and autonomous diagnostics.

FAQ

What is the operating temperature range of the MMA2202D?

The MMA2202D operates across –40°C to +125°C, validated per its datasheet specifications. This extended range supports deployment in under-hood automotive modules, industrial motor controllers, and outdoor-appliance environments where thermal extremes are common. The device maintains full accuracy and self-test functionality throughout this range due to on-chip temperature compensation circuitry.

Does the MMA2202D require external components for basic operation?

Yes - the MMA2202D requires a 0.1 µF decoupling capacitor on VDD and an RC filter (1 kΩ + 0.01 µF) on VOUT to suppress switched-capacitor clock noise. No external trimming or calibration components are needed: zero-g offset, sensitivity, and filter cutoff are factory-set. All N/C pins must remain unconnected and floating per the datasheet.

How does the self-test function work on the MMA2202D?

The MMA2202D self-test applies electrostatic force to the movable g-cell plate via the ST pin, generating a calibrated 10–14 g equivalent output step on VOUT. This verifies both mechanical integrity (transducer) and electronic signal chain (ASIC, filter, output stage). The STATUS pin reflects test initiation and latches faults - confirming end-to-end functionality without external hardware.

What does "ratiometric output" mean for the MMA2202D?

Ratiometric output means the MMA2202D's zero-g offset and sensitivity scale linearly with VDD supply voltage. For example, at VDD = 5.0 V, sensitivity is ~0.50 VDD/g = 2.5 V/g; at VDD = 4.8 V, it becomes ~2.4 V/g. This enables direct connection to microcontroller ADCs using the same VDD as reference - eliminating supply-induced conversion errors.

Can the MMA2202D be used in safety-critical systems like airbag controllers?

While the MMA2202D includes self-test and fault detection (LVD, clock monitor, EPROM parity), it was not qualified to ISO 26262 ASIL-B or AEC-Q100 Grade 0 standards. Its datasheet explicitly states Freescale products are "not designed, intended, or authorized for use … in systems intended to support or sustain life." Use in airbag systems requires additional system-level validation and redundancy not provided by the MMA2202D alone.