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Resolving the Signal Part 6: The Effects of Amplifier Noise on Delta-Sigma ADCs

Resolving the Signal Part 6: The Effects of Amplifier Noise on Delta-Sigma ADCs

Part 6 of this 12-part Resolving the Signal series focuses on output- versus input-referred noise, adding an amplifier at the input of an ADC, and low- versus high-resolution ADCs as they relate to amplifier noise.


A Simple, Compact Power Supply for Analog and Mixed-Signal Systems

A Simple, Compact Power Supply for Analog and Mixed-Signal Systems

This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.


Projects Jun 18, 2018 by Robert Keim
Understanding the Dynamic Range Specification of an ADC

Understanding the Dynamic Range Specification of an ADC

This article will discuss the dynamic range specification of an ADC.


Build Your Own Negative Voltage Generator

Build Your Own Negative Voltage Generator

Everyone needs a negative voltage rail eventually, but most only have a single rail supply. This project will show you how to build a negative voltage generator that runs off a single rail supply!


Projects Jun 07, 2018 by Robin Mitchell
PCB Layout for a Charge-Pump Bipolar Power Supply

PCB Layout for a Charge-Pump Bipolar Power Supply

In this article we’ll look at the PCB design for a low-noise ±5 V inductorless power supply.


Two New SPI Analog Mux Switches from Analog Devices

Two New SPI Analog Mux Switches from Analog Devices

Analog Devices recently announced two new SPI-controlled analog mux switches: the ADGS1208, which has eight single channels, and the ADGS1209, which has four differential channels.


News May 25, 2018 by Nick Davis
Resolving the Signal Part 5: Understanding Effective Noise Bandwidth in Precision Delta-Sigma ADCs

Resolving the Signal Part 5: Understanding Effective Noise Bandwidth in Precision Delta-Sigma ADCs

Part 5 of this 12-part series continues to explore effective noise bandwidth as it relates to delta-sigma ADCs and system-level design by stepping through a simple example using a two-stage filter to understand how to calculate the ENBW and how system changes affect the ENBW.


Considerations for FPGA Implementation of Linear-Phase FIR Filters

Considerations for FPGA Implementation of Linear-Phase FIR Filters

This article will review considerations for efficient FPGA implementation of symmetric FIR filters.


Designing a Charge-Pump Bipolar Power Supply

Designing a Charge-Pump Bipolar Power Supply

This article presents and discusses a schematic design for a ±5 V inductorless power supply.


Boosting and Inverting without Inductors: Charge-Pump Power Supplies

Boosting and Inverting without Inductors: Charge-Pump Power Supplies

This article discusses charge-pump DC/DC converters and introduces a design for an inductorless bipolar power-supply circuit.


My 40-Year Love Affair with a Remarkable Amplifier—A Class B Amplifier for Audiophiles

My 40-Year Love Affair with a Remarkable Amplifier—A Class B Amplifier for Audiophiles

The Blomley amplifier was designed over forty years ago, is an alternative power amplifier design that suffers virtually no distortion, and provides a sound which has the presence often lacking in conventional amplifiers.


The PNP Transistor: Characteristics and Applications

The PNP Transistor: Characteristics and Applications

This article helps you understand what PNP transistors are, how they’re used, and why they’re less common than NPN transistors.


Resolving the Signal Part 4: Understanding Effective Noise Bandwidth in Precision Delta-Sigma ADCs

Resolving the Signal Part 4: Understanding Effective Noise Bandwidth in Precision Delta-Sigma ADCs

Part 4 of this “Resolving the Signal” article series covers noise in delta-sigma ADCs focuses on understanding basic effective noise bandwidth (ENBW) topics.


BJTs after Biasing: Analyzing BJTs with a Small-Signal Model

BJTs after Biasing: Analyzing BJTs with a Small-Signal Model

This article presents two circuits that can be used to analyze the small-signal behavior of a bipolar junction transistor.


Understanding the Early Effect

Understanding the Early Effect

This technical brief discusses the Early effect and how it influences the amplification characteristics of a bipolar junction transistor.


Will GaN Take Over Audio, Automotive? GaN Systems Talks Gallium Nitride Applications

Will GaN Take Over Audio, Automotive? GaN Systems Talks Gallium Nitride Applications

Gallium nitride, or GaN, was a hot topic among power companies at APEC 2018. AAC's Karissa Manske had the chance to ask GaN Systems CEO, Jim Witham, about what GaN's capable of and where we'll see it in the future.


News Mar 24, 2018 by Karissa Manske
MOSQUITO Attack Uses Headphones, Speakers, and Microphones to Leak Data Over Ultrasonic Frequencies

MOSQUITO Attack Uses Headphones, Speakers, and Microphones to Leak Data Over Ultrasonic Frequencies

A cybersecurity research group in Israel has recently published a paper in which they describe the MOSQUITO attack—an attack that can reverse speakers and microphones in air-gapped computers, and use them to send data to one another using ultra-sonic frequencies.


News Mar 20, 2018 by Chantelle Dubois
A Brief History of the Emergency Communications Network

A Brief History of the Emergency Communications Network

What are emergency communications networks? How were they developed and who put them in place? Here's a look at how the US spreads information to its populace quickly in case of emergencies.


News Mar 10, 2018 by Chantelle Dubois
How to Low-Pass Filter a Square Wave

How to Low-Pass Filter a Square Wave

This article, part of AAC’s Analog Circuit Collection, presents a circuit that is a good choice when you need to remove high-frequency noise from a digital signal.


Neutrik etherCON® Connectors | New Product Brief

Neutrik etherCON® Connectors | New Product Brief

Neutrik etherCON Connectors are built to transfer data in harsh and demanding environments, such as pro audio, video, and lighting networks.