NJM4580E

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NJM4580E application field and working principle

NJM4580E is a dual low-power low-noise op-amp that is commonly used in linear-amplifiers, instrumentation, op-amps, buffer amps and more. It has been integrated in numerous mobile devices, audio amplifiers, and other circuits due to its high performance, low-power consumption and low-noise nature. The NJM4580E is a Bi-FET process op-amp with several distinct advantages over traditional op-amps. One of the biggest advantages is its low-noise operation. The bi-FET topology offers a much lower input voltage noise than most traditional op-amp architectures, making it an ideal choice for applications such as high-impedance sensors and audio amplifiers. It also features a fast slew-rate and a wide range of single supply operating voltages which makes it an attractive choice for a variety of applications.The NJM4580E is a dual op-amp, meaning it features two independent op-amps in a single package. This allows circuits to be simplified and power consumption to be minimized. It also includes two integrated AC power switches for added convenience. The NJM4580E is available in both SOT-23 and SSOP packages and is typically used in the following application areas:

• Instrumentation
• Audio amplifiers
• Voltage controlled oscillators (VCOs)
• DC-DC converters
• Signal conditioners
• Integrated power amplifiers

The NJM4580E operates on a single supply voltage between 2.7 V and 5.5 V, with a typical quiescent current of just 2.3 mA, making it ideal for battery operated applications. Moreover, due to its low noise and wide bandwidth, it can effectively perform as a buffer amplifier or level shifter. The power-saving features make it well suited for high-efficiency applications such as portable electronics or mobile phones.The NJM4580E features a high slew rate of 23 V/us, which makes it a great choice for high-fidelity audio applications. Its wide bandwidth of 2.3 MHz ensures it is not easily disturbed by common EMI interference. Additionally, its low distortion performance makes it an excellent choice for applications such as audio amplifiers.

NJM4580E Working Principle

The NJM4580E is a Bi-FET op-amp with the same pin configuration as a traditional op-amp. The NJM4580E has two input pins, two output pins, a supply pin, and a ground pin. The two input pins are non-inverting and inverting inputs, while the output pins are Open Collector (OC) outputs.The NJM4580E works by amplifying the voltage difference between the two inputs and producing an output voltage according to this difference. The NJM4580E has a gain of 100, meaning it will amplify an input voltage difference of 1V by a factor of 100.The NJM4580E uses a unique topology called Bi-FET technology. This combination of the two most common op-amp topologies, the BipolarTransistor and the Field Effect Transistor (FET), reduces the power consumption and noise level to a minimum. The NFET, or N-channel FET, amplifies the input signal while the PFET, or P-channel FET, converts the amplified signal into an output. The NJM4580E is a high performance, low-noise, low-power op-amp that is ideal for a wide range of applications in instrumentation, audio amplifiers and other fields. Its low noise and wide bandwidth make it suitable for audio amplifiers, while its low power consumption and small package size make it a great choice for portable and mobile devices.

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