LM2904DRE4

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Introduction
The LM2904DRE4 is an important component used in design of linear-amplifiers and instrumentation. It is an operational amplifier (OP Amp) and a type of buffer amplifier that can be used to provide specialized and highly accurate performance characteristics. It is designed to be used in a variety of applications from low-noise instrumentation to analog audio systems. This article will describe the features and performance of the LM2904DRE4 in detail and will also explain its working principle.

Features and Performance
The LM2904DRE4 is an integrated circuit featuring low-power consumption, yet robust design. It is offered in a compact 8-pin dual in-line package (DIP) and is available in both a commercial and industrial temperature range. It offers a wide range of input voltage and current ranges, a high slew rate, and low distortion.The LM2904DRE4 features a power supply noise rejection ratio of 80 dB with a ±15 V power supply. It has a small signal voltage gain of about 80 dB with a wide bandwidth of 2 MHz. It also offers a low input offset voltage of 2 mV and a high common-mode rejection ratio (CMRR) of 70 dB.This amplifier is designed with low-noise performance specifications, high-current gain accuracy, and low distortion characteristics. It has a noise voltage of 9 nV/√Hz and a maximum offset voltage of 20 mV. Its slew rate is 250 kHz and its noise voltage is only 0.25 µV/√Hz. It also offers a low output resistance of 1.2 Ω and a low-frequency gain of approximately 60 dB. Its input offset voltage is very low (2mV max) meaning it can be used in applications requiring high accuracy.Overall, the LM2904DRE4 is an excellent choice for use in linear-amplifiers and instrumentation applications, offering excellent performance characteristics.

Working Principle
The LM2904DRE4 is an operational amplifier and works by taking a differential voltage input and amplifying it using traditional feedback techniques. It uses a differential input stage to provide an accurate signal conversion with low current gain. It then passes this signal through a set of resistors to generate a single-ended voltage gain of 80 dB.The LM2904DRE4 provides a wide range of input voltage and current ranges and has an input range that covers both positive and negative voltages. It also has an adjustable and high CMRR (Common-mode rejection ratio) which helps to reduce unwanted noise signals in an application.The LM2904DRE4 has a low offset voltage and high common-mode rejection ratio of 70 dB, enabling it to provide more accurate performance. It is also designed with a low-noise voltage of 9 nV/√Hz and a low-frequency gain of approximately 60 dB, providing a highly accurate signal.The LM2904DRE4 is also designed to produce an output voltage that is proportional to the input voltage. This output voltage can then be used to drive audio or other, larger signal gains.In summary, the LM2904DRE4 is an operational amplifier that works by taking a differential voltage input and amplifying it with traditional feedback techniques. It offers a wide range of input voltage and current ranges, a high slew rate, and low distortion. It is designed to provide excellent performance characteristics in linear-amplifiers and instrumentation applications.

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