LMC6772BIN/NOPB

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The LMC6772/NOPB is a state-of-the-art open-drain voltage comparers -- also known as linear comparators -- designed for a variety of applications. It features two precision voltage comparators and contains the necessary input buffer, level translators and pull-up resistors. This chip is available in the widely used 8-SOIC, 8-TSSOP, 8-MSOP and 4-VSSOP packages.

The LMC6772/NOPB can be divided in two main applications. The first is Industrial Control, which typically uses motor speed control, temperature control and others. The second is Medical Instrumentation, which uses this device to monitor various vital signs of the patient, such as heart rate and blood pressure.

Working principle

The LMC6772/NOPB operates on the principle of comparing two Voltages: A Voltage applied externally to its two input pins, and an internal reference voltage. The comparator then compares those two Voltages and outputs either a “high” or “low” level, depending on which Voltage is higher. The advantage of the LMC6772/NOPB is that it can sense signals as low as 0.1V and up to 30V.

The LMC6772/NOPB also has a number of additional features to its roster. It contains a hysteresis current buffer which ensures that only small reference currents are necessary to achieve high circuit accuracy. This is due to its high input impedance. Additionally, its output stages have been specifically designed so that a lower ON-resistance (RDS) can be obtained with a low supply current, dramatically reducing power consumption.

The device also includes low-voltage-level open-drain drivers, which pull the output high when a voltage below 1.25V is applied to it. Moreover, the LMC6772/NOPB features a limited output voltage with a predefined active low level (1.25V) and low overvoltage protection with internal resistor to the ground pin.

Conclusion

The LMC6772/NOPB is a state-of-the-art linear comparator with a variety of industrial and medical applications. It features two precision voltage comparators and contains the necessary input buffer, level translators, Hysteresis current buffer, low voltage-level open drain drivers and low overvoltage protection. It has a high input impedance, can sense signals as low as 0.1V and up to 30V, and has a low power consumption. The versatile LMC6772/NOPB is the ideal device for applications that require precise voltage comparison and a variety of other features.

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