AZV393MTR-G1 Integrated Circuits (ICs)

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Linear comparators are electronic circuits used to compare two input voltages. The AZV393MTR-G1 is a commonly used linear comparator from Allegro Microsystems. It features a functional range of ±12V, with a supply voltage range of 4.3V to 25.2V. Internally the AZV393MTR-G1 is composed of an auto-zero voltage reference and two comparators, which feed a differential amplifier. This design aims to achieve a fast and accurate output signal while staying within lower power consumption.

The AZV393MTR-G1 is commonly used in precision single and multi-axis motion control systems as well as position sensing and welding feedback applications. The output signal is ideal for motion control where position feedback comes into play and input signals are analog in nature. Its low power consumption has made it a popular choice for battery driven applications.

The AZV393MTR-G1 features two differential inputs with two additional gain ranges accessible through control bits. This allows the user to select the most suitable gain range for their application ranging from A = 6 to A = 48, increasing the accuracy of the output signal. The AZV393MTR-G1 is also equipped with an output-disable feature, which allows for additional control of the output signal. This is useful for applications where the output needs to remain inactive until a valid input signal is sent.

The AZV393MTR-G1 comparator uses an auto-zero voltage reference and two voltage comparators to compare two input signals. In this configuration, the internal 2.5V reference is used to compare the two inputs against each other simultaneously. When the input voltages differ by a certain amount, the internal comparators are triggered and the output signal is sent along its path. Internally, the AZV393MTR-G1 uses a differential amplifier to amplify the output signal with a gain ranging from A = 6 to A = 48.

The AZV393MTR-G1 provides a low voltage shutdown that can be used to shut down the output if the input voltages drop below a certain level. This is especially useful for protecting the output from large voltage swings due to input signal noise or from a sudden power loss. Additionally, its short circuit current limit prevents the output from going into a short circuit.

The AZV393MTR-G1 contains a hysteresis loop that is used to prevent noise or other disturbances from triggering the output signal. This internal hysteresis circuit adjusts the reference voltage level to match the current input signals, making it more stable over time. This feature is critical to applications where the accuracy of the output signal has to be maintained despite input signal noise or abrupt power loss.

In addition to its internal features, the AZV393MTR-G1 also comes with protection features such as an over-voltage and overlord protection circuit. These features protect the internal circuitry from excessive voltages, ensuring that the analog-to-digital converter (ADC) does not get fried due to an overvoltage. The overlord protection circuit limits the output current, increases threshold accuracy and improves the dynamic response of the output signal.

The AZV393MTR-G1 is a versatile linear comparator that can be used in various motion control applications, pulse train detection, and professional sound installations. Its low power operation, compact design, and precision performance make it a standout in the linear comparator market. The AZV393MTR-G1 is ideal for any application where accuracy and precision in the output signal is paramount.

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