LM211QDRG4 Integrated Circuits (ICs)

LM211QDRG4 Linear-Comparators Overview

The LM211QDRG4 (Quad Differential Comparator) is a type of linear-comparator, used in a variety of applications. It is a versatile and reliable four independent differential comparators, which have robust and highly stable performance. The comparator can work in a range of different environments, including temperature, humidity or vibration, due to its advanced construction. The LM211QDRG4 utilises Advance voltage-controlled current source (VCIS) technology, designed to provide ultra-low static current and high-speed performance as well as consistent behaviour over a wide operating temperature range.

Application fields

The LM211QDRG4 comparator is primarily used in applications such as Voltage Controlled Oscillators (VCO), Automatic Gain Control (AGC) systems and Electronic Circuit Protection Circuits (ECPC). It is also used in modern-day circuitry for embedded system platforms such as Raspberry Pi, Arduino and BeagleBone, where the comparator’s low power consumption and robust performance are required.

Other applications for the LM211QDRG4 comparator include audio amplifier circuits, analogue to digital (ADC) switches and Logic Level detection systems.

Working Principle

The LM211QDRG4 comparator comprises four independent voltage comparator channels, each consisting of a pair of high-speed complementary outputs. The comparison is made between either an externally applied voltage, or an internally generated reference voltage. The voltage of the applied reference voltage is set through the control of a single external resistor.

The comparator works on the basis of monitoring two input voltages, and if the voltage of one exceeds that of the other, it triggers a high-voltage within its output stage. The comparison values of each comparator channel can be individually adjusted via an external resistor network.

The real-time output voltage is adjustable by means of a digital control code. This can be used to determine the switching point of each of the comparator channels, as well as the duration of the switching point.

Conclusion

The LM211QDRG4 is a linear-comparator that offers a range of applications for detecting, comparing or switching voltages or circuit states. It has a robust and reliable design, making it ideal for a variety of applications, such as Voltage Controlled Oscillators (VCO), Automatic Gain Control (AGC) systems and Electronic Circuit Protection Circuits (ECPC). The LM211QDRG4 linear-comparator is highly efficient and is capable of operating under a wide range of conditions thanks to its advanced construction.