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For so many years, tube amplifier has always been a “controversial” component in the electronic field, people are attracted by its premium sound quality but discouraged by its price.  Today we are going to talk about tube amplifiers, to understand what this device is, why its price is so much higher than other amplifiers, what are its advantages and disadvantages compared with other amplifiers, and so on.CatalogI. What is a Tube Amplifier?II. Pros and Cons of Tube Amplifier?III. How Does th ...
Op-amp is short for operational amplifier. In practical circuits, they are usually combined with a feedback network to form some kind of functional module. It was named "operational amplifier" because it was used in the early days of analog computers to realize mathematical operations, and the name has been continued to this day.An operational amplifier is a circuit unit named from the point of view of function, and can be implemented by discrete devices or in semiconductor chips. With ...
This article mainly tells about what's an op amp, and then briefly introduce LM358 about its features and parameters, the last we present you the 24 classical circuits of LM358.CatalogI. What is an Op Amp?II. LM358 Introduction     2.1 What is LM358?     2.2 LM358 Features     2.3 LM358 ParametersIII. 24 Classic Circuits of LM358FAQI. What is an Op Amp?This is a tutorial video introducing what's an opearational amplifier in deta ...
A high-output-power balanced power amplifier is designed with power-combining architecture for satellite communication terminals. The power-combining architecture introduces a ±45° phase shift in the output matching network of two amplifiers, which makes the balanced power amplifier more tolerant to load mismatch and less sensitive to load variation. This balanced power amplifier is implemented with InGaP/GaAs HBT process. Under the band of 1.5 GHz to 1.7 GHz and the supply voltage of ...
SummaryAs we all know,originally developed to support analogue computers,the op amp has an elegantly simple core design. The industries are contining to spare no effect in creating‘ideal op-amp'.Simply by wiring in different feedback configurations using passives,op amp can be massaged into roles that include buffers and integrators as well has high-gain amplifiers. It is little wonder the op amp has been as successful as it has been. What's more, people in the industry expect a few core ...
In this article today, we will introduce 9 simple audio amplifier circuit design schematic diagram with detailed explanation, complemented with some knowledge about amplifier.CatalogI. What is an Audio Amplifier?II. Nine Simple Audio Amplifier Circuit Design Schematic DiagramsIII. Some Knowledge about AmplifierFAQI. What is an Audio Amplifier?Let's watch a video first.This video shows us how to make a great sounding LM386 audio amplifier with bass boostAn audio amplifier is a device tha ...
The LTC2185 is a 125Msps 16-bit ADC with excellent noise and linearity performance while only consuming 185mW per channel. It is ideal for demanding low power applications that require excellent AC performance. A high performance ADC like the LTC2185 requires a high performance amplifier driving it to maintain the excellent performance. The ADA4927-1 delivers the linearity performance required by the LTC2185 while only consuming 215mW. The well designed package of the ADA4927-1 allows for a simp ...
Researchers at Chalmers University of Technology, Sweden, have demonstrated an integrated amplifier with the lowest noise performance so far. The amplifier offers new possibilities for detecting the faintest electromagnetic radiation, for example from distant galaxies.Last year, Chalmers reported a world record for a low-noise amplifier in the prestigious journal Electron Device Letters. The amplifier exhibited a minimum noise figure of 0.018 dB across a bandwidth of 4-8 GHz. However, since the  ...
Fujitsu today announced the development of a gallium-nitride (GaN) high-electron mobility transistor (HEMT) power amplifier for use in W-band (75-110 GHz) transmissions.This can be used in a high-capacity wireless network with coverage over a radius of several kilometers. In areas where fiber-optic cable is difficult to lay, to achieve high-speed wireless communications of several gigabits per second, one promising approach is to use high-frequency bands, such as the W band, which uses ...
LM4910LQ belonging to the Boomer series of National Semiconductors is an integrated stereo amplifier primarily intended for stereo headphone applications. The IC can be operated from 3.3V ans its can deliver 0.35mW output power into a 32 ohm load. The LM4910LQ has very low distortion ( less than 1%)   and the shutdown current is less than 1uA. This low shut down current makes it suitable for battery operated applications. The IC is so designed that there is no need of the output coupling ca ...
A new highly efficient power amplifier for electronics could help make possible next-generation cell phones, low-cost collision-avoidance radar for cars and lightweight microsatellites for communications.Fifth-generation, or 5G, mobile devices expected around 2019 will require improved power amplifiers operating at very high frequencies. The new phones will be designed to download and transmit data and videos faster than today's phones, provide better coverage, consume less power and meet th ...
MUNICH—The next generation of mobile radio networks, called AA, will offer the platform for innovative applications requiring extreme short latency times and / or high data rates up to 10 Gbps. Fraunhofer IAF (Freiburg, Germany) has developed one of the building blocks required to roll out AA networks: An integrated circuit for power amplifier transistor implemented in gallium nitride technology. The specific structures on the chip enable base station designers to run the device at relatively hi ...