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System trade-offs for high- and low-side current measurements
Measuring current may sound like a simple task, but it is not as easy as it sounds. Current can’t be sensed directly; however, it is related to other measureable parameters that you can sense directly,...
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What are the building blocks of high-definition audio systems?
Audio system designers, responding to customer demand for top audio quality, are looking into high-resolution (hi-res) or high-definition (HD) audio as more and more mid-tier system buyers demand the...
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Accelerate your ECG design time with delta-sigma ADCs
The electrocardiogram (ECG), which measures electrical signals produced by the heart, has benefited greatly from technological advances. These technological evolutions have resulted in less invasive,...
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How to maintain thermal performance when designing with USB Power Delivery
Over the past decade, portable devices like tablets and smartphones have become a more integral part of our daily life. We depend on them to stay in touch with friends and family, get work done and...
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Precise constant current regulation helps advance fast-charging
With battery-operated devices now being an essential part of our daily life, the burden of charging these devices is receiving more attention than ever. A good number of new approaches have emerged in...
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Where are ultrasonic sensors used? – Part 1
Ultrasonic sensors have been used in passenger vehicles for many years in applications like ultrasonic park assist, which help vehicles detect objects at low speeds when parking. However, kick-to-open...
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High speed data converter clocking for JESD204B
The JESD204B standard for data-converter clocking simplifies board routing, but puts some requirements on the device that clocks the data converter. One such requirement is the SysRef pulse that is...
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Be smart: select digital isolators for your smart meter
(Vikas Kumar Thawani co-authored this blog post.)All major countries are investing in the smart grid and are committed to making it a success. Why? Because power demand is going up, grid and power...
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Why should you care about the noise immunity of MLVDS drivers and receivers?
Noise immunity is the ability of a device or system to suppress external noise, and to function – without deteriorating in performance – in the presence of noise. Multipoint low-voltage differential...
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“Trust, but verify” SPICE model accuracy, part 1: common-mode rejection ratio...
SPICE simulation is an immensely valuable tool that allows engineers to have high confidence in their analog designs before ever stepping foot in a lab. While many of us live and die by our simulation...
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Big USB Type-C™ protection for your small application
We’re starting to get used to seeing the USB Type-C™ connector on laptops and even set-top boxes, but as it makes its way into small form-factor applications like mobile phones, wearables or other...
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Do-it-yourself: Three ways to stabilize op amp capacitive loads
Capacitive loads can cause stability problems in operational amplifier (op amp) circuits, resulting in large overshoots, ringing, long settling times – and in severe cases, sustained oscillations....
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How to implement FM modulation
For most people, listening to frequency modulation (FM) radio is a part of their life. But what is FM exactly? It’s simply a popular modulation scheme used to embed information on a high-frequency...
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How to deliver clean USB Type-C™ signals
The rapid growth of USB Type-C enables a unified interface to deliver data, video, audio and power through a single connector. USB Type-C™ not only supports the latest USB data rate of 10Gbps, it also...
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Transimpedance amplifier designs for high-performance, cost-sensitive smoke...
This post is co-authored by Collin Wells.Photodiode-based light sensing is a common technique where operational amplifiers (op amps) are used to condition a photodiode sensor for a wide range of...
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Debugging an integrated ADC in a microcontroller using an oscilloscope
You probably don’t reach for an oscilloscope first when debugging an analog-to-digital converter (ADC) integrated into a microcontroller (MCU). But an oscilloscope can help you make sure that the ADC...
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Applications of Low Voltage Differential Signaling (LVDS) in Multifunction...
Multifunction and Industrial printers often include a data path where an image must be passed between multiple boards in the system. This creates concerns for designers including noise immunity,...
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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...
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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....
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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...
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