Analog Signal Chain real world problem solutions: Technology and Tools
• Oct 5, 2017

How ultrasonic technology improves convenience and performance in home automation

Homeowners are becoming more interested in automating the control of lights, fans, thermostats, TVs, music equipment, garage doors, doorbells and much more, leading to a growing trend of bringing commercial building automation technologies home. Amazon Alexa, Google Home, Apple HomePod and HomeKit, Wink, and a multitude of other central hubs control...
• Sep 28, 2017

In my last post , I discussed the future of factory automation and how IO-Link is an enabling interface for Industry 4.0. You can use the IO-Link bidirectional, manufacturer-independent communication protocol to develop highly efficient and scalable &...
• Sep 18, 2017

“Trust, but verify” SPICE model accuracy, part 3: slew rate and input clamping diodes

Previous installments of this blog post series discussed the need to verify SPICE model accuracy and how to measure common-mode rejection ratio (CMRR) and offset voltage versus common-mode voltage (V OS vs. V CM ). In part 3, I’ll continue by explaining how to verify an operational amplifier (op amp) model’s slew rate, which is a large-signal...
• Sep 14, 2017

IO-Link: The backbone of the smart factory

You’ve likely heard of the Internet of Things (IoT) and how it not only connects your internet-enabled devices to each other, but enables them to communicate and share data to improve your quality of life. Today, the manufacturing industry is u...
• Sep 7, 2017

Speed up basic circuit design with the analog engineer’s calculator

Quick quiz: Can you find the standard 1% resistor values for a voltage divider that comes closest to a divider ratio of V OUT /V IN = .3278, with less than 0.01% error? The answer is 324Ω and 158Ω, with 0.00025% error. Setting up the equation to solve for one of the values in terms of the other is easy. But iterating through multiple...
• Sep 6, 2017

Three reasons why a bidirectional I/O will simplify your next 4K video design

As 4K video becomes the norm for the professional video industry, high-quality serial digital interface (SDI) components and meticulous board layout are imperative for a high-performance end product. In addition, flexibility, scalability and cost sav...
• Sep 5, 2017

“Trust, but verify” SPICE model accuracy, part 2: input offset voltage vs. input common-mode voltage

It’s no secret that low-voltage rail-to-rail input operational amplifiers (op amps) are gradually taking the place of traditional high-voltage amplifiers in many precision applications. Rail-to-rail input amplifiers are extremely useful, since their linear input-voltage range spans the entire power-supply voltage range (or even beyond). They traditionally...
• Sep 1, 2017

The big noise about isolation is that we’ve made it small and quiet

Some parts of a circuit work best when they can be forgotten. Designing distributed intelligence for control of sensing and actuation in noisy environments with our new isolation process is a great example. Circuit or galvanic isolation physically s...
• Aug 29, 2017

Inductor-free innovation: low EMI Class-D audio

It would be a mistake to dismiss the ever-present television set as lacking innovation. According to the Consumer Technology Association (CTA), every year more than 200 million TVs are sold worldwide. Although overall the technology is mature, with low growth of 1-2% and dozens of competitors, the most innovative TVs, like 4K TVs, will grow at an amazing...
• Aug 28, 2017

Optimize the emissions performance in your isolated system

“Emissions Impossible”! Emissions are inevitable when it comes to switching circuits. With circuits that have an external transformer for isolated power, you can increase the size of the transformer to proportionately reduce the switching...