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amplifiers What is an amplifier? Search results

What is an amplifier?
A device that uses a small amount of energy to control a larger amount. The relationship of the input to the output, expressed as a function of the input frequency, is called the transfer function of the amplifier, and the magnitude of the transfer function is called the gain.
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2002-09-23 AirPrime PDAs to use ANADIGICS power amplifiers
ANADIGICS Inc. has received an order for its CDMA power amplifiers from AirPrime to be used for its PDA wireless modems.
2003-01-31 ADC eliminates need for gain amplifiers
The LTC2412 ADC exhibits a noise of 800nVrms and provides 22.5 ENOBs over 2.5V.
2014-03-06 Actuator features four 16bit HV amplifiers
The electrostatic actuator from Teledyne DALSA provides high voltage output up to 240V using an external miniaturised surface mount coil.
2009-11-27 Active filter evaluation board for differential amplifiers
The EVAL-FLTR-DF-1RZ active filter evaluation board is designed to work with Analog Devices Inc.'s differential amplifiers.
2003-09-19 ACA0861 - A, B, C, D 750/860MHz CATV line amplifiers
This application note provides users steps on using the ACA0861 family of GaAs RF amplifiers to replace silicon hybrid amplifiers.
2007-07-09 About lock-in amplifiers
Lock-in amplifiers are used to detect and measure very small AC signalsall the way down to a few nanovolts.
2008-03-03 A simple method to reduce DC power consumption in CDMA RF power amplifiers through the LMV225 and an efficient switcher
This article presents a simple power tracking technique for efficiency enhancement in CDMA RF power amplifiers.
2007-05-31 A resonant approach to interfacing amplifiers to switched-capacitor ADCs
A resonant approach for transforming the track-and-hold impedance to a more predictable load allowing precise design of antialiasing filters is presented at several common IF frequencies in this paper from ADI.
2000-06-14 A Dynamic Current Control Scheme for RF Power Amplifiers
This technical note demonstrates a dynamic current control scheme to automatically adjust bias current on a need basis to meet the linearity requirements of RF power amplifiers.
2011-05-03 2-channel IC for home theater systems and audio amplifiers
International Rectifier releases the IRS2052M, an integrated 2-channel IC ideal for high-performance audio devices.
2000-12-05 100W and 200W high fidelity audio amplifiers utilizing a wideband-low feedback design
This application note focuses on the use of a pair of complementary Motorola bipolar output transistors, the 2SC3281 and 2SA1302, to create a high-fidelity audio amplifier design.
2010-12-06 1.35GHz differential amplifiers for high-speed pipeline ADCs offer less noise, distortion
Maxim Integrated Products launches line of 1.35GHz differential amplifiers
2003-05-23 Wuxi Zhongxing to pursue fiber amp project
Wuxi Zhongxing Optoelectronics Technologies Co. Ltd has announced that its EDFAs will see further technology development.
2008-03-12 WLED driver integrates audio amp, LDOs
Maxim Integrated Products has introduced the MAX8821, said to be the only WLED driver to combine a highly efficient, negative charge pump with a fully differential, bridged audio amplifier and two low-noise, LDO current regulators.
2006-06-02 VFA, CFA, Bipolar or CMOS - Which high-speed amplifier is best for your low-noise application?
Both current- and voltage-feedback amplifier topologies are popular choices for high-speed applications. An understanding of the differences in circuit topology along with basic noise and distortion characteristics is crucial for optimal product selection.
2014-10-27 Utilising TPS62150 in split rail topology
This application note demonstrates a method of generating a split rail supply with the TPS62150 easy-to-use, synchronous buck converter. It is applicable to any of the TPS62130, TPS62140 and TPS62150.
2014-04-22 Utilise audio amps for voltage splitting (Part 4)
This instalment focuses on the reducing of noise from voltage splitters.
2014-04-16 Utilise audio amps for voltage splitting (Part 3)
Here's a look at voltage splitters based on power audio amplifiers.
2014-03-17 Utilise audio amps for voltage splitting (Part 2)
In the second part of this series, we discuss some features of power audio amplifiers.
2008-05-01 Use analog for better performance-to-power ratios
Using a reference design platform, this article demonstrates how a complete analog system can be developed using energy efficient ADCs, fully differential amplifiers and clock conditioning circuits.
2012-06-11 Understanding common inter-IC digital interfaces for audio data transfer
Know the respective roles of I2S, TDM and PDM interfaces, as well as their differences.
2009-06-02 TS971 based electret condenser microphone amplifier
This application note explains how to implement the TS971 as a microphone pre-amplifier for an electret condenser microphone (ECM). This type of microphone has one of the best prices to performance ratio on the market.
2009-09-24 TriQuint, Huawei partner on optical networks
The companies will develop driver amplifiers and related products for new optical transport systems.
2002-10-25 TriQuint to acquire Agere optoelectronics business
TriQuint Semiconductor Inc. has announced that it will acquire a substantial portion of Agere System's optoelectronics business for $40 million in cash.
2007-10-09 TriQuint tips green base station power amp
Triquint Semiconductor has started sampling high-voltage GaAs power amplifier transistors it claims substantially increase the efficiency of 3G cellular base stations, leading to meaningful energy savings.
2006-10-03 Tiny precision op amps draw less than 1?A
Linear Tech's new family of ultralow-power, small-footprint op amps draw less than 1?A and operate from 1.6V to 16V.
2006-03-20 TIA technology enhances optical receiver performance
Inphi claims their integrated linear TIAs can operate at data rates up to 11.3Gbps.
2006-10-31 TI video amp IC cuts board space by 80%
TI's video amp IC with integrated filters for both analog RGB and digital HV sync signals claims up to an 80 percent savings in board space versus traditional amplifier solutions.
2012-09-25 TI unveils world's first programmable differential amps
PDAs combine the qualities of fully-differential amplifiers and digital variable gain amplifiers, allowing easy design modifications for engineers.
2006-11-17 TI op-amps tout breakthrough performance
TI touts its two new precision op-amps as breakthrough performers for test and measurement, instrumentation, imaging, medical, audio and process control applications.
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