Overview
The IIS328DQ is an ultralow-power, high-performance 3-axis linear accelerometer produced by STMicroelectronics. It is designed for industrial applications that require an extended temperature range and long lifespan. The device features a digital serial interface compatible with both SPI and I²C protocols. It is characterized by its advanced power-saving capabilities, including ultralow-power operational modes and smart sleep-to-wake-up functions. The accelerometer can measure accelerations with output data rates ranging from 0.5 Hz to 1 kHz and has dynamic user-selectable full scales of ±2g, ±4g, and ±8g. It is available in a small, quad, flat package, no-lead (QFPN) with a 4x4 mm footprint, ensuring miniaturization and reliability over a temperature range of -40°C to +105°C.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 2.16 V to 3.6 V |
| Low Voltage Compatible I/Os | 1.8 V |
| Power Consumption | Down to 10 μA |
| Full Scale Range | ±2g, ±4g, ±8g (dynamically selectable) |
| Digital Output Interface | SPI / I²C compatible |
| Data Output Resolution | 16-bit |
| Interrupt Generators | Two independent programmable interrupt generators |
| System Sleep/Wake-up Function | Yes |
| Temperature Range | -40°C to +105°C |
| Self-Test Capability | Embedded self-test |
| Shock Survivability | Up to 10000 g |
| Compliance | ECOPACK, RoHS, and Green compliant |
Key Features
- Wide supply voltage range: 2.16 V to 3.6 V
- Low voltage compatible I/Os: 1.8 V
- Ultralow power consumption: down to 10 μA
- ±2g/±4g/±8g dynamically selectable full scale
- SPI / I²C digital output interface
- 16-bit data output
- Two independent programmable interrupt generators
- System sleep/wake-up function
- Extended temperature range: -40°C to +105°C
- Embedded self-test
- High shock survivability: up to 10000 g
- ECOPACK, RoHS, and Green compliant
Applications
- Industrial applications
- Platform/antenna stabilization
- Tilt/inclination measurements
- Motion-activated functions
- Intelligent power saving
- Impact recognition and logging
- Vibration monitoring and compensation
- Robotics
- Anti-tampering devices
Q & A
- What is the IIS328DQ accelerometer?
The IIS328DQ is an ultralow-power, high-performance 3-axis linear accelerometer with a digital serial interface compatible with SPI and I²C protocols.
- What are the key features of the IIS328DQ?
The device features ultralow-power consumption, dynamic user-selectable full scales, SPI/I²C interface, 16-bit data output, programmable interrupt generators, and an extended temperature range.
- What is the temperature range of the IIS328DQ?
The IIS328DQ operates over a temperature range from -40°C to +105°C.
- What are the power-saving features of the IIS328DQ?
The device includes ultralow-power operational modes and a system sleep/wake-up function to enhance power saving.
- Can the IIS328DQ be used in harsh environments?
Yes, the IIS328DQ is designed to survive high shocks up to 10000 g and operates over an extended temperature range.
- How does the IIS328DQ interface with external systems?
The IIS328DQ interfaces with external systems through SPI or I²C digital output interfaces.
- What is the self-test capability of the IIS328DQ?
The IIS328DQ has an embedded self-test feature that allows users to check the functioning of the sensor in the final application.
- Is the IIS328DQ environmentally friendly?
Yes, the IIS328DQ is ECOPACK, RoHS, and Green compliant.
- What are some common applications of the IIS328DQ?
Common applications include industrial automation, platform stabilization, tilt/inclination measurements, motion-activated functions, and vibration monitoring.
- How can the interrupt generators be configured?
The interrupt generators are programmable by the end user on-the-fly through the I²C/SPI interface.
