STMicroelectronics presents the AIS25BA, an exceptional 3-axis digital accelerometer engineered to cater to automotive non-safety applications, with a specific focus on wideband active noise control (ANC) and vibration monitoring.
The AIS25BA stands out for its remarkable performance attributes. It boasts ultra-low noise levels, ensuring precise and accurate measurements in even the most demanding environments. With its low latency, the accelerometer provides real-time data acquisition, allowing for prompt response and analysis.
One of the key features of the AIS25BA is its wide bandwidth, enabling it to capture a broad range of frequencies with excellent fidelity. This makes it ideal for applications such as ANC, where the accelerometer can accurately detect and counteract unwanted noise frequencies.
The accelerometer is equipped with a dedicated time-division multiplexing (TDM) interface, which facilitates efficient transmission of sensor data. This interface ensures high-speed and reliable communication between the accelerometer and other devices within the system.
For device configuration and control, the AIS25BA also offers an I²C interface, providing a versatile and widely adopted method of communication.
In terms of flexibility, the AIS25BA offers a user-selectable full-scale range of ±3.85 g or ±7.7 g. This allows users to customize the sensor's sensitivity based on their specific application requirements.
The AIS25BA comes in a small thin plastic land grid array package (LGA), which offers a compact footprint and facilitates easy integration into space-constrained automotive systems.
To ensure robust performance in automotive environments, the AIS25BA is designed to operate over an extended temperature range from -40°C to +125°C. This wide operating temperature range guarantees reliable and stable operation even in extreme conditions.
In conclusion, STMicroelectronics' AIS25BA is an outstanding 3-axis digital accelerometer tailored for automotive non-safety applications, particularly wideband active noise control (ANC) and vibration monitoring. With its ultra-low noise, low latency, and wide bandwidth capabilities, this accelerometer delivers precise and real-time measurements. The dedicated time-division multiplexing (TDM) interface ensures efficient data transmission, while the I²C interface allows for easy device configuration. With its selectable full-scale range and compact LGA package, the AIS25BA offers flexibility and ease of integration. Its extended temperature range further enhances its suitability for automotive applications, providing reliable performance across various operating conditions.
AEC-Q100 qualified
3-axis accelerometer with user-selectable full-scale: ±3.85 g / ±7.7 g
Wide and flat frequency response: from DC up to 2.4 kHz (typ)
Low latency (entire reading chain): 266 µs at 2 kHz (typ)
Ultra-low noise density (typ: 30 µg/√Hz for X and Y axes; 50 µg/√Hz for Z-axis)
TDM (8 kHz, 16 kHz, 24 kHz) secondary interface for sensor data and I²C interface for configuration
Supply voltage: 1.71 V to 2.1 V
Extended temperature range: -40°C to +125°C
Embedded self-test
Compact package: LGA 2.5 x 2.5 x 0.86 mm 14-lead
10,000 g high shock survivability
Lead-free, ECOPACK®, and RoHS compliant
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