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Basics of Phase Truncation in Direct Digital Synthesizers

Basics of Phase Truncation in Direct Digital Synthesizers

This article will discuss phase truncation in direct digital synthesizers.


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
News Brief: RIGOL Releases New Oscilloscope Line and Spectrum Analyzer

News Brief: RIGOL Releases New Oscilloscope Line and Spectrum Analyzer

RIGOL, a Beijing-based company, is celebrating their 20th anniversary. To mark the occasion, RIGOL has announced the release of two products: the 7000 range of oscilloscopes and the affordable RSA3000 real-time spectrum analyzer range.


News Jun 14, 2018 by Robin Mitchell
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.


Low-Noise, Wide-Bandwidth: A Single Axis Analog Accelerometer from Analog Devices

Low-Noise, Wide-Bandwidth: A Single Axis Analog Accelerometer from Analog Devices

The ADXL1005 by Analog Devices is a low noise, wide bandwidth, single-axis MEMS accelerometer with Analog Output.


News Jun 08, 2018 by Mark Hughes
Basics of Digital Down-Conversion in DSP

Basics of Digital Down-Conversion in DSP

This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital radio receivers.


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.


Pipelined Direct Form FIR Versus the Transposed Structure

Pipelined Direct Form FIR Versus the Transposed Structure

This article will review two pipelined structures to implement a high throughput FIR filter.


Accelerating Embedded Vision Integration with Xilinx SoCs and the reVISION Stack

Accelerating Embedded Vision Integration with Xilinx SoCs and the reVISION Stack

SoCs with programmable logic are an essential element of real-time embedded vision systems. Designers can capitalize on the power and efficiency of Xilinx's Zynq Ultrascale+ MPSoC devices to implement their designs using Avnet's Embedded Vision Kits and the Xilinx reVISION stack.


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.


Low Noise, Low Power, High Speed: An 18-bit, 2 MSPS Precision SAR ADC from Analog Devices

Low Noise, Low Power, High Speed: An 18-bit, 2 MSPS Precision SAR ADC from Analog Devices

The AD4002 from Analog Devices is a low-noise, low-power, and high-speed 18-bit successive approximation register analog-to-digital converter.


News Apr 16, 2018 by Nick Davis
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.


How to Optimize the Transient Response of a Phase-Locked Loop

How to Optimize the Transient Response of a Phase-Locked Loop

In this article we’ll explore the mathematical relationships that will help you to design a PLL that quickly and smoothly locks onto the input frequency.


What Exactly Is a Phase-Locked Loop, Anyways?

What Exactly Is a Phase-Locked Loop, Anyways?

This article introduces a phase-based feedback system that plays an important role in many applications.


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.


Resolving the Signal: Introduction to Noise in Delta-Sigma ADCs Part 3

Resolving the Signal: Introduction to Noise in Delta-Sigma ADCs Part 3

This 12-part article series focuses on the impact of noise in delta-sigma ADCs. Part 3 brings the theoretical information provided in parts 1 and 2 to a real-world design example.


Digitally Adjust DC-to-DC Voltage Regulators: A PMBus-Controlled Current DAC

Digitally Adjust DC-to-DC Voltage Regulators: A PMBus-Controlled Current DAC

A PMBus-controlled, bidirectional current DAC (digital-to-analog converter) that can adjust the output voltage of a DC/DC converter.


News Mar 02, 2018 by Nick Davis
How to Decode Manchester-Encoded Data Using Hardware

How to Decode Manchester-Encoded Data Using Hardware

This article looks at some circuits that can help you extract the original data from a Manchester-encoded signal.