All About Circuits

Latest Audio Articles and Videos

Categories

Simulating an Op-Amp’s Offset Voltage Variation

Simulating an Op-Amp’s Offset Voltage Variation

In this article, we’ll create an LTspice circuit for analyzing the effect of unpredictable offset voltage on the performance of a precision current-source circuit.


RICOH ELECTRONICS RP122Z Series Low Dropout (LDO) Regulators | New Product Brief

RICOH ELECTRONICS RP122Z Series Low Dropout (LDO) Regulators | New Product Brief

This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.


 LTspice Performance Analysis of a Precision Current Pump

LTspice Performance Analysis of a Precision Current Pump

In this article, we will use simulations to assess important aspects of the performance of an op-amp-based current source.


Designing and Simulating EMC Filters with LTspice

Designing and Simulating EMC Filters with LTspice

In this article, we will review the different types of noise that are present in a circuit. We will also discuss how to perform an accurate simulation of an EMC filter with LTspice.


How to Design a Precision Current Pump with Op-Amps

How to Design a Precision Current Pump with Op-Amps

This article discusses a voltage-controlled current-source circuit that requires only two op-amps and a handful of resistors.


Review of the Op-Amp Integrator

Review of the Op-Amp Integrator

In this video, we will learn about the op-amp integrator, which performs mathematical integration and requires nothing more than an op-amp and a few passive components.


Audio Design is Complex. A New “Complete Audio System” May Quicken Prototyping

Audio Design is Complex. A New “Complete Audio System” May Quicken Prototyping

Leveraging their A2B audio bus technology, Analog Devices has released a full audio system for fast prototyping, evaluation projects, demonstrations, and educational applications.


News Sep 10, 2020 by Jake Hertz
Edge AI Chips for Voice-Activated Devices Save Power, Protect Privacy

Edge AI Chips for Voice-Activated Devices Save Power, Protect Privacy

Machine learning startup Syntiant announced in early August that it had secured $35 million to push its processors forward.


News Aug 21, 2020 by Luke James
Vishay ThermaWick Thermal Jumper Surface Mount Chip | Tech Specs

Vishay ThermaWick Thermal Jumper Surface Mount Chip | Tech Specs

This episode of Tech Specs is part of a video series highlighting the features, applications, and technical specs of newly-released products.


new products Aug 21, 2020 by TTI, Inc
Precisely Capture Servo Motor Position Using a High-Speed Simultaneous Sampling ADC

Precisely Capture Servo Motor Position Using a High-Speed Simultaneous Sampling ADC

Autonomous drones and robots utilize small motors. These fast-spinning mini motors require miniature encoders and IC package sizes. This article shows how an optical sinusoidal encoder provides a higher resolution and increased speeds with a 2x3 mm dual simultaneous-sampling SAR-ADC.


Safety Starts at Design: Stacking Up Five IP Camera Reference Designs

Safety Starts at Design: Stacking Up Five IP Camera Reference Designs

How do the surveillance camera reference designs from five big names—Renesas, NXP, Qualcomm, Microchip, and TI—compare to each other?


News Aug 07, 2020 by Nicholas St. John
Digital MEMs Microphone Extends Smart Speaker Battery Life by Ten Times

Digital MEMs Microphone Extends Smart Speaker Battery Life by Ten Times

The power-saving architecture behind the MEMs microphone side-steps the pitfalls of always-on listening battery consumption.


News Jul 30, 2020 by Jake Hertz
Sample-Size Compensation in Standard Deviation Calculations

Sample-Size Compensation in Standard Deviation Calculations

This article discusses Bessel’s correction, which helps us to more accurately estimate the standard deviation of certain parameters and of long-duration signals.


The World’s First Truly Monolithic MEMS Speaker Hits the Market

The World’s First Truly Monolithic MEMS Speaker Hits the Market

MEMs speakers already have a leg up on conventional speakers. What does a fully-monolithic MEMs speaker entail?


News Jul 17, 2020 by Jake Hertz
Average Deviation, Standard Deviation, and Variance in Signal Processing

Average Deviation, Standard Deviation, and Variance in Signal Processing

This article discusses three descriptive statistical measures from the perspective of signal-processing applications.


Taiyo Yuden Medium-High Voltage MLCCs | New Product Brief

Taiyo Yuden Medium-High Voltage MLCCs | New Product Brief

This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.


Understanding Types of Lock-In Amplifiers and Related Noise Sources

Understanding Types of Lock-In Amplifiers and Related Noise Sources

This article is a general guideline on the main aspects of commercially-available amplifiers.


A Brief Sweep of the Current Measurement Landscape

A Brief Sweep of the Current Measurement Landscape

There are many ways to do the job, each with its own set of advantages, disadvantages, and best use cases.


News Jun 11, 2020 by Gary Elinoff
How Is the Laplace Transform Used in Circuit Design?

How Is the Laplace Transform Used in Circuit Design?

In this article, we briefly review how the Laplace transform can help us solve circuits involving damped and steady-state sinusoidal signals.


Basic Fundamentals of Lock-In Amplifiers

Basic Fundamentals of Lock-In Amplifiers

This article discusses the theory fundamentals of lock-in amplifiers.