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Choosing a Low-Noise Amplifier - Maxim Integrated
https://www.maximintegrated.com/en/design/technical-documents/app-notes/3/3642.html#:~:text=These%20values%20are%20provided%20in%20all%20low-noise%20amplifier,the%20need%20to%20account%20for%20the%20amplifier%27s%20gain.
The Design of Low-noise Audio-frequency Amplifiers
http://www.keith-snook.info/Stuff-you-should-read/Faulkner%20-%20The%20design%20of%20Low-noise%20audio%20frequency%20amplifiers.pdf
THE DESIGN OF LOW-NOISE AUDIO-FREQUENCY AMPLIFIERS considering current ratios, without explicitly referring to the magnitudes of the voltages appearing at the amplifier input terminals. A great deal of confusion has arisen over the rela tion between noise figure and input resistance. It should be clear from Fig. 3 that if an amplifier has a
Amazon.com: low noise amplifier
https://www.amazon.com/low-noise-amplifier/s?k=low+noise+amplifier
FJX992: PNP Audio-Frequency Low-Noise Amplifier
https://www.onsemi.com/products/discrete-power-modules/general-purpose-and-low-vcesat-transistors/fjx992
FJX992: PNP Audio-Frequency Low-Noise Amplifier. Rev. A (303kB) This product is general usage and suitable for many different applications. I C Cont. (A)
60 dB Low Noise Audio Amplifier - jensign.com
https://www.jensign.com/60dBLowNoiseAudioAmplifier/index.html
A low voltage supply is within the supply range of many typical op-amps and is useful for lower level preamp applications such as noise measurements. The first circuit (see schematic below, upper circuit) is a 60dB midband signal gain non-inverting amplifier with an f -3dB bandwidth of about 50 kHz. This is useful as a generic low noise, hi-gain block to boost low-level input …
A very low-noise FET input amplifier - Time and Frequency ...
https://tf.nist.gov/general/pdf/821.pdf
amplifier. This amplifier has noise performance of less than 1.2 nV/m and 0.25 fA/m over the 500 Hz to 500 kHz frequency range. With modest changes it could be extended to a wide variety of uses requiring low-noise gain in the 1 Hz to 30 MHz frequency range. INTRODUCTION A low-noise amplifier has been designed utilizing a Toshiba
Ultra low noise amplifiers - JanasCard
http://www.janascard.cz/PDF/Design%20of%20ultra%20low%20noise%20amplifiers.pdf
Various types of ultra-low noise amplifiers both for DC and AC signals are described. “Ultra-low noise” here means that voltage noise density is bellow 1 nV/√Hz for AC amplifiers or noise less than 100 nVpp for DC amplifiers. 1. Ultra–low noise AC amplifiers Op amplifiers (OA) are widely used as AC amplifiers. For ultra-low noise amplifiers are
Choosing a Low-Noise Amplifier - Maxim Integrated
https://www.maximintegrated.com/en/design/technical-documents/app-notes/3/3642.html
While each design can provide low-noise performance, their performances are not equal. Bipolar Amplifiers Bipolar amplifiers have traditionally been the most common low-noise amplifiers. Low-noise bipolar amplifiers such as the MAX410 offer very low-input voltage-noise density (1.8nV/) with a relatively high-input current-noise density (1.2pA/). Unity-gain bandwidths are …
MOSFET AUDIO AMPLIFIER(Low Noise and High Gain) : 6 …
https://www.instructables.com/MOSFET-AUDIO-AMPLIFIERLow-Noise-and-High-Gain/
MOSFET AUDIO AMPLIFIER (Low Noise and High Gain) Step 1: Introduction. This includes both amplifiers used in home audio systems and musical instrument amplifiers like... Step 2: Design and Some Important Amplifier Stages. The first objective is to attain a considerable power gain that is... Step 3: ...
Low-Noise Amplifiers - LNA Design | Maxim Integrated
https://www.maximintegrated.com/en/products/comms/wireless-rf/low-noise-amplifiers-lnas.html
In wireless applications, a low-noise amplifier (LNA) is an active network that increases the amplitude of weak RF signals to allow processing by a receiver. In a receiver chain, the first amplifier after the antenna contributes the most to the system noise figure.
Audio-Amplifier-circuit-with-noise-filtering | Mini ...
https://www.electronics-tutorial.net/Mini-Projects/Audio-Amplifier-circuit-with-noise-filtering/
An audio amplifier amplifies low-power audio signals to a level which is suitable for driving loudspeakers. In several practical circuits using op amps we observe the noise present in the output waveform. This results in an undesired output waveform. Thus majority of the circuits require audio amplifiers along with a noise filtering circuit.
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