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Content posted in May 2014
Use MacGyver's Methods, Part 4
Vincent Biancomano  
5/28/2014   1 comment
Now we'll step up to an example where you can simply gauge how a given design proposal might fare even before you apply the meat of the design equations.
Ask the Experts Q&A Summary: Linear Regulators
Steve Taranovich  
5/28/2014   7 comments
Q&A summary from Ask the Experts linear regulator session on April 23, 2014.
Excel: Taken for Granted, Part 3
Aubrey Kagan  
5/27/2014   39 comments
Documentation of all projects is important, and Excel provides a method for that by allowing comments to be associated with a cell.
Design Challenge 3: Power Supply Circuit/Regulator Needs
Steve Taranovich  
5/26/2014   20 comments
Here is a third Design Challenge from one of our readers. Please feel free to make suggestions and comments/questions, and the author will respond. Maybe we can even improve upon the design.
Sensors Without Wires, But Not Wireless
Analog Angle  
5/23/2014   23 comments
The diversity of sensing problems and possible solutions is always expanding, bolstered by sensitive, low-noise analog front-end circuitry.
Excel: Taken for Granted, Part 2
Aubrey Kagan  
5/22/2014   32 comments
Moving around an Excel worksheet, especially a large one, can be challenging.
Wearable Technology for Behavior Control
Steve Taranovich  
5/21/2014   19 comments
The recent fitting of an alcohol-detecting band to a convicted binge drinker in the UK is a reminder of how the use of wearable electronics for behavior control is proceeding apace.
Our Experts for 'Ask the Experts' Precision Voltage Reference & Current Sources
Steve Taranovich  
5/20/2014   1 comment
Our experts for the “Ask the Experts” May 21 Precision Voltage Reference and Current Sources session.
Challenges & Requirements: Voltage Reference Design for Precision Successive-Approximation ADCs, Part 4
Alan Walsh  
5/20/2014   8 comments
A poorly designed reference circuit can cause serious conversion errors. The most common manifestation of a reference issue is repeated or “stuck” codes from the ADC
Challenges & Requirements: Voltage Reference Design for Precision Successive-Approximation ADCs, Part 3
Alan Walsh  
5/20/2014   8 comments
Once the drive capability has been determined, we must ensure that the noise from the reference circuit does not affect the ADC’s performance.
Challenges & Requirements: Voltage Reference Design for Precision Successive-Approximation ADCs, Part 2
Alan Walsh  
5/20/2014   9 comments
The voltage reference may integrate a buffer that has sufficient drive current. Otherwise, a suitable op amp can be used as a buffer.
Challenges & Requirements: Voltage Reference Design for Precision Successive-Approximation ADCs, Part 1
Alan Walsh  
5/20/2014   8 comments
The overall precision of a high-resolution, successive-approximation ADC depends on the accuracy, stability, and drive capability of its voltage reference.
Matching in Analog Layout
Keith Sabine  
5/20/2014   Post a comment
Analog circuits often use structures like differential pairs and current mirrors, where matching of device characteristics such as the threshold voltage Vt is important.
Voltage Reference Fundamentals: The Shunt Reference Design Equations
Steve Taranovich  
5/19/2014   Post a comment
A shunt reference design is somewhat more difficult, because you must calculate the external resistor value.
Voltage Reference Fundamentals: The Shunt Reference
Steve Taranovich  
5/19/2014   Post a comment
A shunt reference has two terminals, OUT and GND. It is similar in concept to a zener diode but has much better specifications.
Voltage Reference Fundamentals: The Series Reference Design Equations
Steve Taranovich  
5/16/2014   3 comments
A series reference design is fairly easy. Just make sure the input voltage and power dissipation are within the maximums specified for the IC.
Voltage Reference Fundamentals: The Series Reference
Steve Taranovich  
5/16/2014   3 comments
A series reference has three terminals: VIN, VOUT, and GND. Though similar in concept to a linear voltage regulator, it is designed for lower current and higher accuracy.
Planet Analog 'Ask the Experts' for May: Voltage References & Current Sources
Steve Taranovich  
5/16/2014   3 comments
On May 21, 2014 at 10AM PDT (1PM EDT), our experts will be available to answer all your questions regarding Voltage reference and Current sources.
Your Internet of Things: More Than the Sum of Its Parts
Jay Esfandyari  
5/16/2014   27 comments
What technologies are providing the impetus for this growth, and what applications are reaping the most benefits? I'll discuss a few in this blog, and more in subsequent ones.
ADCs Within Embedded Systems
Brandt Braswell  
5/15/2014   Post a comment
As the market for cost reduction increases in intensity, the pressure is mounting to integrate or embed more of the functions within complex integrated circuits.
How the Department of Energy & National Labs Spark Energy Storage Innovation
Mike Everett  
5/14/2014   24 comments
The past five years have been very interesting for the US Department of Energy (DOE).
Challenges of Mixed-Signal Simulations, Part 2
Steve Taranovich  
5/13/2014   Post a comment
Now let us look at all the design pieces that must be matched and kept track of in this design flow.
Challenges of Mixed-Signal Simulations, Part 1
Steve Taranovich  
5/13/2014   Post a comment
The increase in design complexity emerges from the increased use of sensor and RF devices within the SoCs.
Signal Chain Basics #89: Creating Clock Trees From Multiple Devices, Part 2
Signal Chain Basics  
5/12/2014   Post a comment
Clock trees are devices used to create multiple clock output frequencies and formats. In many cases, a single device can generate all the required outputs and is the best solution.
Signal Chain Basics #89: Creating Clock Trees From Multiple Devices, Part 1
Signal Chain Basics  
5/12/2014   2 comments
Clock trees are devices used to create multiple clock output frequencies and formats.
Analog vs. Digital: The Power Struggle Continues!
Steve Taranovich  
5/9/2014   8 comments
If you are a power supply design engineer or an EE or ASE who selects power solutions for your end-system, then there is no doubt you have stood at the crossroads and pondered the dilemma of whether to go analog or digital with your power train.
Design Challenge 2: Resistor Burning Out in Motion Sensor Night Light
Steve Taranovich  
5/9/2014   32 comments
Another brain-teaser for us to discuss and help an Australian reader who contacted me recently.
Failures in Aerospace Applications, Part 6
Paolo Scalisi  
5/7/2014   11 comments
Several paramaters are useful in determining a product's sensitivity to the heavy ions or to the protons, and to compare products among themselves.
The Captain’s Log
Kendall Castor-Perry  
5/7/2014   9 comments
How to implement an exposure measurement subsystem that can be incorporated into a hand-held exposure meter and even embedded in the light control loop of a photographic flash gun.
Excel: Taken for Granted, Part 1
Aubrey Kagan  
5/7/2014   22 comments
When I started my blogs on Excel, I launched straight into it without any mention of some of the simple features that you may or may not know. As I move on, I think perhaps I should cover some of these features.
Looking Inside NFC Security: Eavesdropping Attack, Part 1b
Victor Lorenzo  
5/6/2014   2 comments
Wireless technologies play a key role as enabling technologies in the IoT world. In a connected world, security and communications privacy should become primary concerns for designers.
Looking Inside NFC Security: Eavesdropping Attack, Part 1a
Victor Lorenzo  
5/6/2014   11 comments
Wireless technologies play a key role as enabling technologies in the IoT world. In a connected world, security and communications privacy should become primary concerns for designers.
Looking Inside NFC Security: Eavesdropping Attack, Part 2c
Victor Lorenzo  
5/5/2014   7 comments
Many hardware and systems debugging tasks require the observation and analysis of analog and digital signals. While studying wireless interface vulnerabilities, tools like SciLab can be of great help.
Looking Inside NFC Security: Eavesdropping Attack, Part 2b
Victor Lorenzo  
5/5/2014   4 comments
Many hardware and systems debugging tasks require the observation and analysis of analog and digital signals. While studying wireless interface vulnerabilities, tools like SciLab can be of great help.
Looking Inside NFC Security: Eavesdropping Attack, Part 2a
Victor Lorenzo  
5/5/2014   9 comments
Many hardware and systems debugging tasks require the observation and analysis of analog and digital signals. While studying wireless interface vulnerabilities, tools like SciLab can be of great help.
Analog Components We'll Miss – or Maybe Not?
Analog Angle  
5/2/2014   22 comments
Many user-facing components from years ago are no longer widely used; they had their time and role but things have changed, along with our demands.
Neuronics: Distributed-Memory Addressing, Part 4
Dennis Feucht  
5/1/2014   14 comments
The tradeoff for less memory is that a given memory location with CMAC addressing might be used for multiple input states, resulting in collisions for some memory locations.




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