Analog Signal Chain real world problem solutions: Technology and Tools
    • Dec 19, 2014

    SPICE it up: My favorite “proof-of-concept” simulations (Part 2)

    In my last post , I explained what TINA-TI is and introduced how to use a transient simulation to check a circuit’s DC operating condition. Figure 1 shows the results of this simulation. Figure 1: Transient simulation results using the...
    • Dec 17, 2014

    Get Connected: Data aggregation using a general purpose SerDes

    Welcome back to the Get Connected blog series here on Analog Wire! In my previous Get Connected blog , we reviewed the benefits of implementing equalization in high-speed serial links that are prone to signal integrity problems. In this post, I will ...
    • Dec 10, 2014

    SPICE it up: Why I like TINA-TI (Part 1)

    TINA-TI is TI’s circuit design and SPICE simulation tool. I’m a big fan of the software, but it’s not just because I work at TI. I’ve used other SPICE-based simulation programs over the years. While most are fairly easy to use...
    • Dec 5, 2014

    What are you sensing? Capacitive sensing for proximity detection and more

    Capacitive sensing is becoming popular to replace optical detection methods for applications like proximity and gesture detection, material analysis, and liquid-level sensing. Capacitive sensing technology measures the capacitance resulting from change in dielectric material between two conducting plates. Capacitance measurement basics Capacitance...
    • Dec 3, 2014

    Haptics: More actuators needed? No problem.

    The problem: “Haptics” refers to the feeling of tactile feedback and control that can enhance the user experience with touch screen electronic devices. Haptics technology is being used within various human-machine interfaces to create new functional surfaces and textures. While manufacturers of personal electronics like smartphone and...
    • Nov 26, 2014

    Preventing output polarity inversion in high-speed amplifiers

    Many control loop applications require that you avoid unexpected polarity inversion with respect to input. This is because the control loop’s response can cause system instability if the output of one stage changes polarity in an unexpected manner. In this post, I’ll look into the issue and suggest a simple method to avoid it in a circuit...
    • Nov 24, 2014

    Top 5 Reasons to be thankful for AC power

    During the holidays, it is often a time of reflection and giving thanks for all of the wonders in our lives. One which is very dear to me as an “Electrical Engineer” is electricity, which gives my profession a reason for staying up all night studying differential equations and Laplace Transforms! With that said, electricity, which can...
    • Nov 21, 2014

    Inductive sensing: Sensor frequency constraints

    Configuration of inductance-to-digital converter (LDC) sensors can seem quite challenging, but by using the graph introduced in this blog post, the process can be greatly simplified. For LDCs, a sensor is a simple inductor, spring, or PCB coil in parallel with a capacitor. One of the primary constraints on the sensor is the operating frequency. So...
    • Nov 18, 2014

    Driving ADCs: Amplifier or balun?

    Baluns are often used to convert a single-ended signal to differential, without adding noise and while maintaining good distortion. A common example of that is in the driver circuit for a high-speed, differential-input analog-to-digital converter (ADC). Have you ever considered using a differential amplifier to replace a balun in the RF/IF signal...
    • Nov 13, 2014

    Know your ISO: Understanding high-voltage isolation metrics and test methods

    To pick the right isolator for a system, a design engineer must understand what component-level isolation parameters define an isolator’s high-voltage performance, how these parameters are tested and certified, and why these parameters are relevant to an end application. This understanding is not only required to compare competing isolators available...