MLX75123RLA-AAA-000-SP Integrated Circuits (ICs)

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MLX75123RLA-AAA-000-SP Application Field and Working Principle

The MLX75123RLA-AAA-000-SP is a part of Melexis\' new family of digital interface products. It is an integrated module and consists of Melexis\' sensor elements, a single chip measuring interface, an analog-to-digital converter, and a digital signal processor. It is designed to interface itself to the host bus via I2C, to provide data to the host system over a wide range of applications for distance and displacement sensing.

This product is typically used in applications that require precision control, a stable dynamic performance and a fast and reliable signal acquisition. Examples of applications that may benefit from using the MLX75123RLA-AAA-000-SP are positional sensing in robotics, motion capture systems, electric vehicles, medical imaging systems, and automotive safety systems.

Operation Principle

The MLX75123RLA-AAA-000-SP operates by measuring the time required for an acoustic pulse to travel from the emitter to the receiver. The emitter is a piezoelectric transducer (PZT) that is capable of emitting an acoustic pulse when driven with a short, usually positive, electrical pulse. The receiver is also a PZT and it is able to detect the reflected pulse. The time of flight (TOF) of the pulse from the emitter to the receiver can be determined by measuring the time elapsed between sending the pulse (T1) and detecting the reflected pulse (T2).

The MLX75123RLA-AAA-000-SP digitally filters, analyzes and processes the time-of-flight data and then provides it to the host system via an I2C interface in the form of an 8-bit digital output. This output is pre-scaled relative to the set distance range, so is suitable for further processing by the host system. This device also features a built-in calibration component, which ensures optimal performance even in adverse environmental conditions, such as temperature and humidity changes.

Technical Features

The MLX75123RLA-AAA-000-SP interfaces with host systems via a standard I2C two-wire or SPI four-wire serial interface. It is powered with a 5V voltage supply. This device provides a digital output scaled relative to the set distance range so it provides an output suitable for further host system processing. This device is able to measure distances up to 6m, with a resolution of up to 2mm at 100mm. It also features a built-in calibration component that ensures optimal performance in changing environmental conditions, such as temperature and humidity.

Conclusion

The MLX75123RLA-AAA-000-SP provides a reliable interface between host systems and sensors, allowing users to measure distances up to 6m with a resolution of up to 2mm at 100mm. It is designed for applications that require precision control, a stable dynamic performance and a fast and reliable signal acquisition. This device interfaces to the host system via standard I2C two-wire or SPI four-wire serial interfaces, and is powered by a 5V voltage supply. This device also features a built-in calibration component that ensures optimal performance even in changing environmental conditions, such as temperature and humidity changes.

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