LMV7291MG Integrated Circuits (ICs)

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The LMV7291MG is a type of linear comparator from Texas Instruments\' LMV series. It is an open drain output comparator that is designed to operate over a wide range of supply voltage and input voltage combinations, making it ideal for applications where EMI and electrical noise is an issue. The LMV7291MG is available in 8-pin mini-SOIC packages, allowing for easy integration into a variety of circuits.

Application Fields

The LMV7291MG is ideal for low power applications. It is designed to operate at low maximum voltage and low quiescent current (down to 10nA). This makes it an ideal choice for battery-powered applications such as remote telemetry, portable instrumentation, and automotive systems. The low current consumption and small package size also make the LMV7291MG suitable for low-power, space-constrained applications such as consumer electronics.

In addition to its low power operation, the LMV7291MG is fitted with an overvoltage protection feature that allows it to be used in automotive, industrial and consumer applications where a klaxon or alarm might be needed to protect against power supply failure or surge voltages. The LMV7291MG can be used in systems that process line-level signals such as audio and video, and can also be used as a reference voltage generator.

Working Principle

The LMV7291MG operates on the principle of two separate comparators which compare two separate reference voltages. The LMV7291MG is suitable for both bipolar and unipolar input logic signals. The reference voltages can be independently varied from 0V to VCC, and each reference voltage is connected to a pair of open-drain outputs.

The outputs are connected to an open collector, allowing the comparator to be used in a wide range of applications. When the input signal voltage is equal to or higher than the reference voltage, the output is low. Conversely, if the input signal voltage is lower than the reference voltage, then the output is high.

The LMV7291MG has built-in hysteresis, which is a feature that allows the same input signal to be interpreted differently depending on the direction of the voltage change. The hysteresis on the LMV7291MG can be set by varying the reference voltage.

The LMV7291MG also has an input offset voltage of 125mV, which allows it to operate with high accuracy even in the presence of large transient noise signals. In addition, the LMV7291MG has an integrated schmitt trigger with programmable thresholds, making it well-suited for line-level pacing applications.

Conclusion

The LMV7291MG is an open drain comparator from the Texas Instruments LMV series. It offers excellent low power operation, together with integrated hysteresis and a built-in input offset voltage, making it suitable for applications in low power, space-constrained and automotive systems. The LMV7291MG is available in 8-pin mini-SOIC packages, allowing for easy integration into a variety of circuits.

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