Analog Signal Chain real world problem solutions: Technology and Tools
    • Jun 11, 2018

    Improving IC reliability for harsh design environments

    It’s hard to believe that I’ve actually grown up with the integrated circuit (IC), which recently turned 50 years old (I pre-date that slightly … but hey, who’s counting). As a boy, I dreamed of Star Trek-like communicators a...
    • Jun 4, 2018

    Smart speakers don’t have to sound as small as they are

    Smart speakers are ingeniously helpful devices, providing weather reports, ordering food or playing a favorite song. As consumers find more ways to use virtual assistants, these devices are being added to more rooms, and the size of the device is shrinking to make them less conspicuous. Unfortunately, there is a direct relationship between speaker...
    • May 24, 2018

    How much loading can an auto-polarity RS-485 bus support?

    The RS-485 interface is popular because of its robustness; the use of differential signaling effectively rejects common-mode noise on the bus. To make the communication work, the transceiver and receiver have to match the pins: A to A and B to B. In ...
    • May 21, 2018

    10 lessons learned from 50-plus biometric wearable product development cycles

    This is the second in a three-part series on optical heart rate sensors for biometric wearables. The first installment focused on how these sensor systems work and what you can measure with them. You’re sitting in a planning meeting. The team h...
    • May 15, 2018

    Gigabit xMII for 100BASE-T1: why are RGMII & SGMII important for 100 Mbps PHYs?

    Ethernet offers a more flexible networking technology for advanced driver assistance systems (ADAS), infotainment systems, body electronics and power trains; previous in-vehicle communication technologies required dedicated, special-purpose links and expensive cabling. The automotive amendments of the Institute for Electrical and Electronics Engineers...
    • May 3, 2018

    Optical heart-rate sensors for biometric wearables

    This is the first in a three-part series on optical heart rate sensors for biometric wearables. This first installment focuses on how these sensor systems work and what you can measure with them. Most wearables use photoplethysmography (PPG) to measu...
    • May 2, 2018

    The importance of automotive Ethernet standards

    Ethernet adoption and adaptation by original equipment manufacturers (OEMs) and Tier-1 companies has been underway for several years now. Automotive-oriented amendments to the Institute of Electrical and Electronics Engineers (IEEE) 802.3 standard in...
    • Apr 24, 2018

    How to select serializers and deserializers in HMI systems

    A human-machine interface (HMI) usually includes a textual or graphical view of automated system conditions and operations. HMIs are widely used in factory automation, motion control systems, industrial robots for smarter automation, and computer numerical control (CNC) systems with highly interactive interfaces and touch-screen support. Industrial...
    • Apr 12, 2018

    Designing tiny microphone circuits with the industry’s smallest op amp

    Voice commands are a popular feature in many applications as a way to differentiate products in the market. Microphones are a primary component to any voice- or speech-based system and electret microphones are a common choice in applications for their small size, cost and performance. This blog post continues our series on high-performance, cost...
    • Apr 5, 2018

    These are not your grandfather’s TVS diodes

    Conventional transient voltage suppression (TVS) diodes have been essential building blocks in system designs for decades. They protect against transient surge events, and many designers rely on TVS diodes to provide an adequate level of surge immuni...