This document is the technical data manual of MMA1200D, which introduces the product's features, performance, applications and other information.
The MMA1200D is a surface‑micromachined silicon capacitive accelerometer with integrated signal‑conditioning, a 4‑pole Bessel low‑pass filter, and temperature compensation. It offers a linear output, self‑test capability, and fault‑latch status monitoring, making it suitable for vibration, impact, and airbag applications.
The datasheet lists electrical ratings, mechanical characteristics, package dimensions, and recommended PCB layout. Key parameters such as supply voltage range, sensitivity, bandwidth, and zero‑g output are provided, along with pin assignments and ordering information for the SOIC‑16 (Case 475‑01) package.
| Supply Voltage | 0.3 V to +7.0 V |
|---|---|
| Supply Current | 3.0 mA – 6.0 mA |
| Operating Temperature Range | -40 °C to +85 °C |
| Sensitivity | 1.47 – 1.72 mV/g |
| Bandwidth | 360 Hz – 440 Hz |
The device operates from 0.3 V up to +7.0 V supply voltage.
Applying a logic high to the self‑test pin drives a calibrated potential across a dedicated test plate, causing the sensing plate to deflect; the resulting output verifies both mechanical and electrical integrity.
The Status pin is set high when low‑voltage detection, clock monitor failure, or EPROM parity error occurs, or when the self‑test pin is high.
Typical sensitivity is between 1.47 mV/g and 1.72 mV/g depending on supply voltage.