LM339ANG4

The LM339ANG4 is a part of the LM339A family, a quad, low power, high speed, precision voltage comparator. The comparator is designed to operate from +2V to +36V, with a maximum supply of +3V to +36V. The comparator includes four independent, high-speed voltage comparators with inputs that can use common mode signals up to +36V. The comparator has an internal reference voltage, allowing a single supply operation. It is designed to operate over a temperature range of -40 C to +85 C.

The LM339ANG4 can also be used as a higher accuracy precision voltage comparator with an internal bias current of less than 1/4 of the specified tolerance. The comparator can also be used to detect unequal high or low logic levels; it is also suitable for various window comparator applications.

Application Fields

The LM339ANG4 is typically used in a wide range of applications, including:

• amplifiers,
• security systems,
• temperature control systems,
• timers,
• alarm systems,
• data converters, and
• multiplexers and multiplexed alarms.

Working Principle

The working principle of the LM339ANG4 is based on the difference between two input voltages, called VIN and VOUT. VIN is the voltage at the positive input, and VOUT is the voltage at the negative input. The two input voltages are compared, and when VIN exceeds VOUT, the output of the LM339ANG4 will be turned on. If VIN falls below VOUT, then the output of the LM339ANG4 will be turned off. The output of the LM339ANG4 is typically connected to two gates, allowing them to be controlled by the output of the comparator.

The output of the LM339ANG4 can be further enhanced by limiting the input voltages, using the offset voltage trim option. The offset voltage trim is used to adjust the voltage difference between the two input voltages. This can help increase the accuracy of the output, and can help provide better control in window comparator applications.

In addition to the above, the LM339ANG4 can be used in a wide variety of applications, such as automotive, consumer and industrial control applications, due to its precision and low power operation.