Analog Signal Chain real world problem solutions: Technology and Tools
    • Dec 28, 2017

    Integrating next-generation linear resonance actuator systems

    In my last blog post , I introduced new actuator technology and briefly talked about the need for higher-voltage drivers. In this post, I’ll go into more detail about these high-voltage drivers and four system considerations – waveform synthesis, waveform effects, delay time and actuator placement – that you should keep in mind while...
    • Dec 18, 2017

    Don’t limit your audio: how to achieve loud sound from a small speaker

    One common challenge audio design engineers run into today is getting loud audio from a small speaker in systems with a single cell battery. The best solution is to give the amplifier more power. In portable electronic devices, implementing a Class-D audio amplifier with a boost will deliver that extra power. Unfortunately, the power needed to achieve...
    • Dec 6, 2017

    How to make precision measurements on a nanopower budget, part 1: DC gain in nanopower op amps

    Heightened accuracy and speed in an operational amplifier (op amp) has a direct relationship with the magnitude of its power consumption. Decreasing the current consumption decreases the gain bandwidth; conversely, decreasing the offset voltage increases the current consumption. Many such interactions between op amp electrical characteristics influence...
    • Dec 4, 2017

    “Trust, but verify” SPICE model accuracy, part 6: voltage noise and current noise

    Previous installments of this blog post series discussed the need to verify SPICE model accuracy and how to measure common-mode rejection ratio (CMRR), offset voltage versus common-mode voltage (Vos vs. Vcm), slew rate (SR), open-loop output impedance (Zo), input offset voltage (Vos) and open-loop gain (Aol). In this sixth and final installment, I’ll...
    • Nov 20, 2017

    “Trust, but verify” SPICE model accuracy, part 5: input offset voltage and open-loop gain

    Previous installments of this blog post series discussed the need to verify SPICE model accuracy and how to measure common-mode rejection ratio (CMRR), offset voltage versus common-mode voltage (Vos vs. Vcm), slew rate (SR) and open-loop output impedance (Zo). In part 5, I’ll explain how to verify two of the most impactful specs of precision operational...
    • Nov 16, 2017

    Seven things that only an analog engineer would understand

    I’m sure you’ve been asked at some point what you do for a living. For me, it is normally an odd conversation: Them: What do you do?Me: I work at Texas Instruments.Them: So you make the calculators!Me: No, actually I work in Analog.Them: ...
    • Nov 10, 2017

    You can be an electromechanical engineer

    Although many electronics engineers have their heads buried in schematics, capacitors, amplifiers, voltages, frequencies, timings and impedance, real-world implementations take form as physical systems that have to fit within the final product and in...
    • Nov 2, 2017

    How to reduce the number of I/O pins with a switch matrix module

    Today, we have vehicle types that didn’t exist years ago. We have compact SUVs, coupes, convertibles, minivans and trucks. It goes beyond vehicle types as well; cars offer a variety of safety functions (blind-spot detection, tire-pressure monit...
    • Oct 31, 2017

    Where are ultrasonic sensors used? – Part 2

    This blog post was co-authored by Akeem Whitehead. Consumer drones have grown in popularity in recent years, used to capture stunning footage, carry rescue supplies and even for racing. Most drones use various sensing technologies for autonomous navigation, collision detection and many other functions. Ultrasonic sensing in particular assists with...
    • Oct 30, 2017

    What is an EFT?

    There are many different types and flavors of certification testing for semiconductor devices: electromagnetic interference and compatibility, electrostatic discharge, transient pulse, vibration resistance, humidity and temperature stress – the...