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Category Archives: Analog Professional
Median vs Mean
I’ve been doing some statistical measurements lately (more to follow). It occurs to me that while most people measure the mean of a set of measurements, the median is more useful.
Differential Circuits Follow-Up
Introduction
You’ll notice that this post has Matt Miller listed as the author. Poojan requested Matt’s comments on his differential circuit post. Poojan was impressed with my comments enough that he decided to make it a follow-up post. So, this post is co-written by both Poojan and Matt.
The benefits of differential circuits
Introduction
From my personal blog:
I’ve been lucky enough to find myself in a team that’s intent on finding the best circuit design for a given application. This doesn’t happen often to many people, but I feel that I’ve had more than my share of this opportunity.
The conclusion is usually that we come up with some topology [...]
Posted in Analog Professional Tagged differential, dynamic range, Noise, power, single ended, SNR 2 Comments
PCB & IC Layout Designer
I generally don’t accept solicitations to post resumes, but I am making an exception for a very talented friend of mine.
I know a very good IC designer and PCB designer. My experience with him is as an IC layout designer. However, most of his PCB customers cite him as the best PCB layout designer they’ve [...]
Polar vs Cartesian RF Modulator Efficiency
I’ve been fielding quite a few questions lately about polar modulation. Indeed, polar modulators are theoretically more efficient. However, this does not need to be the case. I will highlight (technically, self-promote) a Cartesian scheme that can produce an RF signal as efficiently as a polar modulator—with fewer implementation issues.
Posted in Analog Professional Tagged cartesian, mixer, modulator, polar, RF, switching Leave a comment
Impulse Invariant Transform
Introduction
The impulse invariant transform (IIT) is a method of taking a continuous-time system H(s) and converting it to a discrete-time system. There are multiple ways of doing this, but the IIT does so with the constraint that the impulse response of the discrete-time system is a sampled version of the impulse response of the continuous-time [...]
Tunable Non-Foster Match Using Switched Capacitor