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Amplifiers

Two-channel, high-speed op amps feature slew rates to 10V/µs

December 22, 2020 By Redding Traiger

ROHM announced the availability of a two-channel, high-speed, ground sense CMOS operational amplifier (op-amp), BD77502FVM, optimized for consumer and industrial equipment requiring high-speed sensings – such as industrial measurement and control systems. The proliferation of the Internet of Things (IoT) in recent years has led to a significant increase in the number of electronic components used for […]

Filed Under: Amplifiers, Consumer, Industrial, IoT, Tools Tagged With: rohm

Designing a DAC-controlled, high-side constant current source

December 17, 2020 By Aimee Kalnoskas

by KlausST, supermoderator on EDABoard.com Here I’d like to show how to design a DAC controlled high -side constant current source. Since it is often used as 0..20mA (or 4..20mA) current loop interface, we will focus on the interface requirements. * low speed ( maybe some 10Hz up to some kHz) * high precision * […]

Filed Under: Amplifiers, Analog ICs, FAQ, Featured, Products Tagged With: FAQ

Dual 5-V op amp sports 50-MHz gain-bandwidth, low input offset voltage, 6.5 nV/√Hz input voltage noise

December 8, 2020 By Redding Traiger

STMicroelectronics’ TSV792 dual 5V operational amplifier (op-amp) combines 50MHz gain-bandwidth with precision attributes including low input offset voltage and extremely low input voltage noise of just 6.5nV/√Hz. The typical 50MHz gain-bandwidth product enables accurate amplification of high-frequency signals. Adding a fast slew rate of 30V/µs, the TSV792 is suited to photodiode-signal conditioning in battery-powered smoke detectors. […]

Filed Under: Amplifiers, Industrial, Products, Telecommunications, Tools, Wireless Tagged With: STMicroelectronics

LNA offers 15-dB typ gain over up to 170 GHz

November 30, 2020 By Redding Traiger

For the emerging number of millimeter-wave applications above 100 GHz, the model ITI-110-170-15-6 low-noise amplifier (LNA) from Impulse Technologies offers 15-dB typical gain over the wide frequency range of 110 to 170 GHz. It features a typical noise figure of 6 dB over that high-frequency range. The broadband LNA is equipped with UG-387 as the […]

Filed Under: Amplifiers, Audio, Connectivity, Industrial, Tools Tagged With: impulsetechnologies

Advanced IC integrates instrumentation amp, auto-trimming, digital pots, analog switches

November 10, 2020 By Redding Traiger

Dialog Semiconductor plc announced the SLG47004, Dialog’s first Advanced Analog GreenPAK IC. The SLG47004 integrates an instrumentation amplifier with auto-trimming, digital pots, analog switches, and a myriad of digital functions with in-system programmability in a small 3mm x 3mm solution size allowing designers to create simulate and prototype their own unique sophisticated analog ICs in […]

Filed Under: Amplifiers, Analog ICs, Applications, Audio, Industrial, Products, Software, Tools Tagged With: dialogsemiconductorplc

The RF power amplifier, Part 1: Functions

July 28, 2020 By Bill Schweber

RF power amplifier

In the RF signal chain, the power amplifier (PA) is the active element located between the transmitter signal chain circuitry and the antenna, Figure 1. It is often a single discrete component, one with requirements and parameters which differ from those of much of the transmit chain as well as the receiver circuitry. This FAQ […]

Filed Under: Amplifiers, Analog ICs, FAQ, Featured, Products Tagged With: basics, FAQ, themathworks

Class D audio, Gallium-Nitride versus Silicon – Virtual Roundtable (part 2 of 2)

July 13, 2020 By Jeff Shepard

Class D Roundtable

In this second part of EEWorld’s “virtual roundtable” discussion on Class D audio, our panelists delve into the impact that the emergence of gallium-nitride (GaN) is having on Class D designs: Where are silicon devices still dominant? What are the performance benefits of using GaN in Class D amplifiers?  And what are the anticipated future […]

Filed Under: Amplifiers, FAQ, Featured, Products Tagged With: FAQ

Class D audio technology and applications – Virtual Roundtable (part 1 of 2)

July 13, 2020 By Jeff Shepard

The first part of EEWorld’s two-part “virtual roundtable” discussion on Class D audio considers technical challenges and design trade-offs for engineers using Class D audio technology. Joining us for this virtual roundtable are: Joshua LeMaire (JL), Audio Systems Architect at Analog Devices; Steve Colino (SC), Vice President Strategic Technical Sales with Efficient Power Conversion; and […]

Filed Under: Amplifiers, FAQ, Featured, Products Tagged With: FAQ

Sound design considerations for Class D amps

June 16, 2020 By Jeff Shepard

The first two FAQs in this series, “Class D Amplifiers for High-Efficiency Switched-Mode Sound” and “Class D Audio – Why Now?” focused on basic Class D amplifier topologies, modulation techniques, general component and technology advancements that have made Class D amplifiers an increasingly viable option, and the evolving tradeoffs between silicon and GaN power devices. […]

Filed Under: Amplifiers, FAQ, Featured, Products Tagged With: FAQ

Class D audio – Why now?

June 15, 2020 By Jeff Shepard

class D amplifiers

Class D amplifiers were first proposed in the 1950s. Why have they only recently been gaining more widespread popularity? The answer involves several factors: There were no switching transistors that met the performance demands of Class D amplifiers until the 1980s. And it was not until the mid-1990s that Class D integrated circuits became available. […]

Filed Under: Amplifiers, FAQ, Featured, Products Tagged With: FAQ

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