Power sequencing from Analog Devices using their ADP5134 sequencer IC. App note here (PDF) Power supply sequencing is required for microcontrollers, field programmable gate arrays (FPGAs), digital signal processors(DSPs), analog-to-digital converters (ADCs), and other devices that operate from multiple voltage … Read more
Tag Archives: Analog Devices
An angle measurement solution from Analog Devices app note (PDF!). An AMR (anisotropicmagneto resistive) angle measurement solution with 1°angular accuracy over a 180° range. The circuit is ideal for applications where high speed, accurate, non-contact angle measurements are critical. The … Read more
an I2C isolation solution from Analog Devices, app note can be found here. The Inter-Integrated Circuit (I2C®) bus is a two-wire bidirectional bus used for low speed, short-distance communication between integrated circuits. Developed by Philips 1980 in the early 1980s … Read more
FAQ on Analog Device’s digital Potentiometers. App note here. A digiPOT is a digitally controlled resistor that changes the impedance between the terminals and wiper depending on the code loaded in the RDAC register. Digital potentiometers avoid the problems that … Read more
app note: How to Oversample 5 MSPS, 18-Bit/16-Bit Precision SAR Converters to Increase Dynamic Range
Here’s how you can maximize your ADC’s Dynamic Range by oversampling, an app note from Analog Devices. One of the ways to achieve a higher dynamic range is to oversample the converter to accurately monitor and measure both small and … Read more
Op amps needs dual supply in order to get a full output swing from its input fed signal, here’s a good app note from Analog Devices on powering op amps using only a single supply. Battery-powered op amp applications such … Read more
Sebastian writes, “Here’s my review of the ADSP-BF592 EZ Lite Kit. Quite an interesting board for people trying to get into DSPs.” Via the contact form.
An app note from Analog Devices: Build precise S/H Amps for fast 12 Bit ADCs (PDF!) S/h amplifier circuits will use one of several standard architectures: closed-loop or open-loop, and inverting or noninverting configurations. No matter what circuit type designers … Read more
Analog Devices, Inc. (ADI) released a new version of its popular ADIsimRF design tool: The free design tool is the software accompaniment to ADI’s complete portfolio of RF-to-digital functional blocks, allowing engineers to model RF signal chains using devices from … Read more
Here’s a series of video tutorials on filtering from Analog Devices. First in the series (embedded above) covers simple single pole filters made out of resistors and capacitors. The series moves onto active filtering with op-amps, and finishes with multi-pole … Read more
Here’s a web video series from Analog Devices describing thermocouples (TC) and how to get the most out of them. TC is a temperature sensor that outputs a voltage dependent on the temperature difference between these two ends.
Tim Kerby notes that there is now a Wiki for the Analog Discovery with lots of fantastic training materials. Check it out! Via the contact form.
Here’s an article from Analog Devices going into the details of high-speed PCB layout design. While the article mainly focuses on analog electronics, lots of good tips can be picked up for digital designers as well. Intelligent circuit-board layout is … Read more
Analog Devices describes why it’s a bad idea to drive capacitive loads with op amps. If you’re forced to drive a capacitive load, this video also provides a possible solution to the stability issues.
Here is an article from Analog Devices discussing the theory and application of detecting human falls with 3-axis accelerometers. While the article focuses on the ADXL345 3-axis accelerometers, the theory and principle behind it can be applied to other devices … Read more
Here’s an article from Analog Devices detailing the differences between current-sense amplifiers and difference amplifiers in high side current measurement. Current sense amplifiers offer measurement of the instantaneous current, while difference amplifiers offer average current measurements. While current-sense amplifiers offer … Read more
How HDTV systems impact audio noise, and how to limit it: Ensuring a pop and click free audio signal chain requires careful design on behalf of both the hardware engineer and software engineer. This article discusses how hardware system and … Read more
Here’s an FAQ from Analog Devices regarding proper grounding techniques. Engineer Walt Kester answers questions with references and schematics to better explain his points. All in all, a very good read that might help you catch stray signals problems in … Read more
Analog Devices explains when the maximum supply current given by the datasheet could lead you astray: For most integrated circuits, a maximum supply current is listed on the data sheet. Often overlooked are the measurement conditions. For some rail-to-rail output … Read more
Sequentially connecting optocouplers for better isolation slows things way down, digital isolators don’t suffer as much. The advantages of digital isolators over opto-couplers [PDF!] in layered isolation: Creating double insulation barriers with sequential optocouplers is problematic because the data integrity … Read more