If properly architected, there’s now a world of applications in which AI enables 5G, and a world where 5G enables AI, all collapsed in a transparent manner for enterprise, telco, and the edge. 5G brings wireless convenience combined with the speed and reliability of wired connections as where AI brings unprecedented intelligence to machines through…
FAQ
Input bias current cancellation in bipolar op amps
Bipolar operational amplifiers have an essential input bias current requirement. This bias current has to come from somewhere and can be a nuisance in some types of high impedance circuits such as charge amplifiers and transimpedance amplifiers and can result in offset voltages where input resistances aren’t matched. The example shown below has an input […]
MOSFET Drivers – what are they and why do we need them?
There are a lot of MOSFET drivers around these days. MOSFET drivers often contain MOSFETs themselves. There are several reasons for needing MOSFET drivers: Drive current – MOSFETs can have very high gate capacitance. For example, the IRF530NS from International Rectifier is a 90mW device which can withstand 17A continuous drain current at 100V and […]
When inductors self resonate
Inductors only behave like inductors below because of what’s called their self resonant frequency. And the self resonant frequency arises because the equivalent circuit of real-world inductors aren’t strictly inductive. There are parasitic elements that come into play. To understand why, look at the equivalent circuit for an inductor. An inductor can be comprised of […]
Memory, disk drives, memory fabrics and RISC-V
The unique and flexible computational architecture of RISC-V can be leveraged by designers of massive parallel computational storage solutions, hard disc drives (HDDs) and solid-state disk drives (SSDs), and memory fabric architectures such as Ethernet Bunch of Flash (EBOF) or Just a Bunch of Flash (JBOF) to implement high-performance solutions. This article will look at […]
What is the difference between a gauge and an absolute pressure sensor?
Understanding the difference between gauge and absolute pressure sensing measurements is easiest to visualize with piezoresistive type pressure sensor and a diaphragm that deflects with pressure. For both types of measurements, pressure is applied to the top of the thin diaphragm. With the gauge pressure sensor, the back side is vented to atmosphere. This could […]
Basics of Fourier transforms
Joseph Fourier (1768-1830), in his principal work, “On the Propagation of Heat in Solid Bodies” (1807), laid the groundwork for what is now known as the Fourier Transform. In years to follow it was modified by others to make it more generally applicable. Today the basic insight is central to our understanding of a broad […]
What is the RISC-V ecosystem?
In its most basic form, RISC-V is an open standard instruction set architecture (ISA) based on reduced instruction set computer (RISC) design principles. RISC-V is an open specification and platform; it is not an open-source processor. All other aspects of the RISC-V ecosystem build on that foundation. The hardware and software in the RISC-V ecosystem […]
Open RAN: it’s still early in the game
With all the talk about Open RAN, it’s still in the top of the first inning.
Bit errors and ADC testing
Most engineers are introduced to the basic performance parameters of analog/digital converters in school. So specifications such as SNR, SINAD (Signal-to-noise and distortion ratio), ENOB (Effective Number of Bits), and THDA (total harmonic distortion analysis) are all familiar ADC terms found in ADC data sheets. Ditto for an INL error, described as the deviation, in […]