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Posts Tagged ‘Analog Devices’

App note: Implementing an I2C reset

Sunday, October 9th, 2016

Interesting app note from Analog Devices when an I2C communication is broken under some circumstances. Link here (PDF) The I2C bus is a high integrity, robust serial bus used for control purposes in many systems. The primary components that make up a system are at least one master and one...

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App note: Environmental compensation on the AD7142: The effects of temperature and humidity on capacitance sensors

Sunday, October 9th, 2016

An old but useful application from Analog Devices about things that can affect touch/capacitance sensors. Link here (PDF) Capacitance sensing has the potential to replace current user input mechanisms in consumer devices. Products as diverse as cell phones, digital cameras, MP3 players, and other portable media players are all suitable...

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App note: Measuring a loudspeaker impedance profile using the AD5933

Sunday, August 21st, 2016

An application note from Analog Devices about AD5933, this provides a low cost substitute to expensive test equipment like signal generators, oscilloscope and voltmeters in getting the speaker's impedance profile. Link here (PDF) This application note describes a circuit architecture using the AD5933 that allows the system designer to measure...

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App note: Microcontroller-based serial port interface (SPI®) boot circuit

Sunday, March 6th, 2016

Simple circuit for sending command upon boot to the target device sortof boostraping hardware tachnique, an app note from Analog Devices. Link here (PDF) This application note describes the operation of a general purpose, microcontroller-based Serial Port Interface (SPI) boot circuit. This is a low cost solution for users who...

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App note: Peak-to-peak resolution versus effective resolution

Sunday, March 6th, 2016

Effective resolution is superior compared to peak-to-peak resolution when comparing ADCs from different companies. An application note from Analog Devices. Link here (PDF) The low bandwidth, high resolution ADCs have a resolution of 16 bits or 24 bits. However, the effective number of bits of a device is limited by...

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App note: How to successfully apply low dropout regulators

Sunday, August 30th, 2015

Application note regarding proper usage of LDO from Analog Devices. Link here (PDF) A low dropout (LDO) regulator is capable of maintaining its specified output voltage over a wide range of load currents and input voltages, down to a very small difference between input and output voltages. This difference, known...

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App note: Isolating USB with SPI

Sunday, August 30th, 2015

Old but still good technical note from Analog Devices on USB isolation. Link here (PDF) Currently, iCoupler® digital isolation technology is capable of transferring data at rates ranging from DC to about 150Mbps, which is adequate for transferring serial data to support low (1.5Mbps) and full (12Mbps) speed modes of...

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App note: Common-Mode transients in current sense applications

Sunday, February 1st, 2015

Transient considerations in current sensing especially in motor and solenoids, app note(PDF) from Analog Devices. Current sense amplifiers are used in a variety of applications, such as motor or solenoid control, load current monitoring, and fault detection. In such applications, it is typical for the input common-mode voltage to swing...

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App note: Complex power supply sequencing made easy

Sunday, August 10th, 2014

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 rails. These applications typically require that the core and analog...

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App note: Magnetoresistive angle measurement

Sunday, July 13th, 2014

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 circuit provides all necessary signal conditioning including instrumentation amplifiers, buffers,...

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app note: Isolating I2C interfaces

Sunday, June 8th, 2014

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 for use amongst ICs on a single board, I2C today...

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app note: Digital Potentiometers: Frequently Asked Questions

Sunday, June 1st, 2014

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 mechanical potentiometers face, such as physical size and wear and...

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app note: How to Oversample 5 MSPS, 18-Bit/16-Bit Precision SAR Converters to Increase Dynamic Range

Sunday, June 1st, 2014

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 large input signals from the sensors. There are a number...

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App note: Biasing and decoupling op amps in single supply applications

Sunday, December 1st, 2013

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 as those found in automotive and marine equipment have only...

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Review: ADSP-BF592 EZ Lite Kit

Tuesday, August 27th, 2013

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.

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Posted in dev boards | 10 Comments »

App note: Build precise S/H Amps for fast 12 Bit ADCs

Sunday, May 19th, 2013

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 employ, they need to incorporate a high-speed amplifier to buffer...

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Analog Devices releases free version of RF design tool

Friday, May 3rd, 2013

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 across ADI's RF IC and data converter portfolio. ADIsimRF Version...

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Posted in News, software, tools | 1 Comment »

App note: Filtering 101 whiteboard series

Sunday, February 10th, 2013

[embed]https://www.youtube.com/watch?v=DEV7l66D6Ys&list=PL64A193CF0B94C5D3[/embed] 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 Sallen-Key filters. Geek alert: theory and math zone!

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App note: Thermocouple 101 video series

Sunday, January 20th, 2013

[embed]http://www.youtube.com/watch?v=Xp7ZNAc9Fis[/embed] 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.

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Posted in app notes | 3 Comments »

Analog Discovery training resources

Saturday, January 12th, 2013

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.

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Posted in documentation, oscilloscope | No Comments »

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