OPA2377AIDGKR

OPA2377AIDGKR Application Field and Working Principle

The OPA2377AIDGKR is a high performance, dual-operational amplifier (op amp). It is part of the Industrial Series of op amps manufactured by Texas Instruments and is part of the Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps category. This op amp is ideal for any application requiring wide bandwidth, high precision current sensing, or DC-DC converters.

The OPA2377AIDGKR operates with a supply voltage range of 4.5 V to 22 V , with a quiescent current of just 11.5 mA. In addition, it offers 1 MHz compensated bandwidth and a slew rate of 500 V/μs, making it well suited to a wide range of applications.

The OPA2377AIDGKR is a high precision differential amplifier with precision current sensing and DC-DC converters for current sensing in linear applications. It features a low-offset of 5 μV, high accuracy and low noise, making it very suitable for precise measurement applications, such as data acquisition and instrumentation.

The OPA2377AIDGKR features a rail-to-rail operational range for both input and output, along with a common mode voltage range from −0.3 V to +21 V. This range is coupled with a low noise, low drift, low power, and high input common mode rejection, making it very suitable for precision circuit applications, such as current sensing.

Working Principle

The OPA2377AIDGKR operates according to an open-loop amplifier (OLA) principle. This means that the output voltage is proportional to the difference between the two inputs, without being regulated by another circuit. This is possible due to the current feedback design of the op-amp, which allows the output voltage to be effectively regulated.

The OPA2377AIDGKR is an amplifier with differential outputs with input current regulation. This is due to its input stage, which has two MOSFETs that allow current regulation according to the difference between the two input currents. This regulation is possible because the OPA2377AIDGKR features a common mode voltage range from 0.3 V to +21 V.

One of the most important features of the OPA2377AIDGKR is its low power nature. It only consumes 11.5 mA of quiescent current and offers a low-input offset voltage of 5 μV. This makes it ideal for portable and battery-powered devices. The OPA2377AIDGKR also is capable of sustaining rail-to-rail operation and a supply voltage range of 4.5 V to 22 V.

Conclusion

The OPA2377AIDGKR is a high performance, low power, dual op amp amplifier which is ideally suited for high precision current sensing and DC-DC converters. It features rail-to-rail inputs, a wide operating voltage range from 4.5 V to 22 V, and a low-offset voltage of 5 μV. The low power consumption and wide input common mode range make it a very suitable choice for applications with restrictive space or power requirements.