Analog Signal Chain real world problem solutions: Technology and Tools
    • Mar 19, 2018

    Does your design have a low talker?

    Many of you can relate to having a conversation with a “low talker” – someone whose ultra-low voice makes them difficult to understand. Communicating with a low talker often leads to miscommunication and mixed signals, illustrated to great effect in a well-known sitcom from the 1990s . So what does a low talker have to do with electronic...
    • Mar 1, 2018

    LIN: take a look inside

    Did you know that drivers, passengers and even cargo can often benefit from up to 80 separate LIN modules placed throughout vehicles? These modules help implement a wide range of features that many of us use multiple times daily, without truly unders...
    • Feb 28, 2018

    Transients in 24V automobiles

    Automobiles are becoming more advanced every day. The number of integrated circuits (ICs) is increasing every year and spreading to more modules within the automobile to control lights, heating, sensors and more. The new paradigm of designing automob...
    • Feb 27, 2018

    ESD fundamentals, part 5: reverse working voltage, breakdown voltage and polarity configuration

    We’ve covered a lot of material in this electrostatic discharge (ESD) fundamentals series, such as the International Electrotechnical Commission (IEC) 61000-4-2 rating , the ESD clamping voltage and junction capacitance . In this final installment of the series, I’ll cover a few more important ESD parameters: reverse working voltage, breakdown...
    • Feb 22, 2018

    The HART of field transmitters

    In a previous blog post , my colleague Gavin Bakshi discussed the highway addressable remote transducer (HART) protocol and its place in sensor transmitter designs. To recap, simple transmitter designs traditionally communicate an analog value, typically referred to as the process variable (PV), through a current loop. This PV is generally tied to a...
    • Feb 12, 2018

    ESD fundamentals, part 4: ESD capacitance

    In the third installment of this series , I explored the importance of the clamping voltage of an electrostatic discharge (ESD) protection diode. Although the main goal of an ESD diode is to protect a system during an ESD event, it has another equally...
    • Feb 8, 2018

    How to make precision measurements on a nanopower budget, part 2: current sensing using nanopower op amps

    In the first installment of this two-part series, I discussed the mechanism offset voltage (V OS ) and offset voltage drift (TCV OS ) in DC gain, and how to select a nanopower operational amplifier (op amp) with the right level of precision to minimize error in the signal path of an amplified low-frequency signal. In this second installment, I’ll...
    • Feb 6, 2018

    How to lay out a PCB for high-performance, low-side current-sensing designs

    In my previous blog post , I discussed how low-side current sensing helps control a motor and then provided three steps to design a low-side current-sensing circuit for cost-sensitive applications. In this post, I’ll discuss how you – with the proper printed circuit board (PCB) layout techniques – can design an accurate, low-cost,...
    • Jan 29, 2018

    Signal Conditioning functions go mainstream in PCI Express Gen 4

    It’s been quite a while – just about seven years now – since the current PCI Express (PCIe) Gen 3 specification became official. With a swell of activity in the standard committees, a new PCIe Gen 4 specification reached versio...
    • Jan 26, 2018

    Back to the basics: what is HART protocol and how does it work?

    The blog post was co-authored by Audrey Dearien . Communications in industrial automation systems enable the transfer of data, commands and other information to streamline process control and factory automation. It would be unrealistic for an engineer to monitor every piece of equipment in the factory (and that certainly would decrease productivity...