All About Circuits

Latest IC Design Technical Articles

Categories

6 Ways to Design for Circuit Board Rework

6 Ways to Design for Circuit Board Rework

Learn why you should design for rework—and 6 easy ways to do it.


Transimpedance Amplifier Stability

Transimpedance Amplifier Stability

Learn about how to stabilize transimpedance amplifiers or TIAs with useful examples.


Noise Analysis Using LTspice Tutorial

Noise Analysis Using LTspice Tutorial

Learn how to simulate noise using LTspice and use this great tool to learn more about low-noise design.


How Reactive Loads and Networks Affect Phase Shift in Analog Circuits

How Reactive Loads and Networks Affect Phase Shift in Analog Circuits

How can reactive elements affect phase shift in an LC circuit? Learn more about phase shift in analog design.


A (Solder) Bridge To Nowhere: What Is a Solder Bridge and How to Avoid Them in PCB Design

A (Solder) Bridge To Nowhere: What Is a Solder Bridge and How to Avoid Them in PCB Design

Learn what solder bridges are and how to avoid them.


How to Simulate a Bidirectional Voltage-Controlled Current Source

How to Simulate a Bidirectional Voltage-Controlled Current Source

Learn about simulating an interesting current source built around an op-amp and an instrumentation amplifier.


How to Design a Simple, Voltage-Controlled, Bidirectional Current Source

How to Design a Simple, Voltage-Controlled, Bidirectional Current Source

This article presents a high-performance current source that requires only a few readily available components.


The Arm Architecture Explained

The Arm Architecture Explained

Learn more about the Arm computer architecture, including ISA, execution states, and processor families.


Learn Analog Circuits: Types and Applications of Current Mirrors

Learn Analog Circuits: Types and Applications of Current Mirrors

The current mirror is an important analog building block that finds application in such diverse areas as DC biasing and current-mode signal processing.


What Is a Microcontroller? The Defining Characteristics and Architecture of a Common Component

What Is a Microcontroller? The Defining Characteristics and Architecture of a Common Component

In this article we’ll look at the defining characteristics of these extremely popular ICs, and then we’ll explore the internal architecture.


Using Verilog to Describe a Sequential Circuit

Using Verilog to Describe a Sequential Circuit

This article focuses on using Verilog to describe synchronous sequential circuits.


Applications and Limitations of the Current-Feedback Amplifier: Dual CFAs and Composite Amplifiers

Applications and Limitations of the Current-Feedback Amplifier: Dual CFAs and Composite Amplifiers

In this article, we continue our study of the current-feedback amplifier. We’ll also look at a composite amplifier that combines the benefits of the voltage-feedback topology and the current-feedback topology.


Characteristics of Current-Feedback Op-Amps: Benefits of CFA Design vs. VFAs

Characteristics of Current-Feedback Op-Amps: Benefits of CFA Design vs. VFAs

In this article, we’ll take a more detailed look at the functionality and characteristics of current-feedback amplifiers.


How to Drive Large Capacitive Loads with an Op-Amp Circuit

How to Drive Large Capacitive Loads with an Op-Amp Circuit

Learn more about capacitive load compensation.


Use Verilog to Describe a Combinational Circuit: The “If” and “Case” Statements

Use Verilog to Describe a Combinational Circuit: The “If” and “Case” Statements

This article explains the use of Verilog “If” and “Case” statements to describe a combinational circuit.


How to Design a Custom PCB Holder: Mechanical Considerations for a High-Precision Sensor System

How to Design a Custom PCB Holder: Mechanical Considerations for a High-Precision Sensor System

When working with high-precision sensors, it's crucial to consider housing. In this article, we discuss an approach to designing a custom board holder for an inclinometer subsystem.


How to Turn a Schematic into a PCB Layout: PCB Design for a Custom Inclinometer

How to Turn a Schematic into a PCB Layout: PCB Design for a Custom Inclinometer

So you have a schematic. How do you lay out your custom board? In this article, we'll go over the challenges and solutions I came across in designing a custom PCB for an inclinometer subsystem.


How to Design a Schematic: Creating a Roadmap for a Custom PCB Inclinometer

How to Design a Schematic: Creating a Roadmap for a Custom PCB Inclinometer

This project series details the design and construction of a precision inclinometer based on the Murata SCA103T-D04. This article looks at schematic design considerations.


How to Design a Precise Inclinometer on a Custom PCB

How to Design a Precise Inclinometer on a Custom PCB

Learn the design steps for creating your own custom inclinometer PCB.


Projects Jan 08, 2019 by Mark Hughes
The Howland Current Pump

The Howland Current Pump

The Howland current pump, invented by MIT’s Professor Bradford Howland in the early 1960s, consists of an op-amp and a balanced resistor bridge and puts out current in either direction.