Posts Tagged ‘ADC’

App note: ASIC fixes for noisy analog “Oops”

Sunday, March 5th, 2017

App note from Maxim Integrated about simple fixes that can solve most issues when designing with ASICs. Link here (PDF) Noise is a common problem in mixed-signal ASICs, degrading performance and jeopardizing the completion of products. This application note gives hints and tips for adding external circuits that make many...

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Adding ADC to Microcontrollers without ADC

Thursday, September 15th, 2016

Scott Harden writes: I recently had the need to carefully measure a voltage with a microcontroller which lacks an analog-to-digital converter (ADC), and I hacked together a quick and dirty method to do just this using a comparator, two transistors, and a few passives. The purpose of this project is...

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Posted in AVR | No Comments »

App note: Interfacing AT84AD001B dual 8-bit 1 Gsps ADC and AVR ATmega128L

Sunday, April 10th, 2016

e2v's application note interfacing their 1 Gsps 8-bit ADC to AVR. Link here (PDF) With its smart feature (3-wire serial interface), e2v's AT84AD001B dual 8-bit 1 Gsps ADC provides you with digital control over various functions offered with the dual ADC: calibration, gain and offset adjustments, DMUX ratio selection, analog...

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Posted in app notes | 3 Comments »

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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Playing with analog-to-digital converter on Arduino Due

Monday, May 4th, 2015

Piotr wrote a post on his blog about using some of advanced capabilities of ADC in Arduino Due: Today I’m going to present some of more advanced capabilities of ADC built in ATSAM3X8E – the heart of Arduino Due. I like the Arduino platform. It makes using complex microcontrollers much...

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Posted in Arduino | 1 Comment »

Arduino Due advanced ADC

Sunday, May 3rd, 2015

Piotr Nowicki wrote a post on his blog about using some of the advanced capabilities of ADC in Arduino Due. He hadn't seen this topic covered anywhere yet and hopes it will useful to fellow hackers. Via the contact form.

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Wednesday, March 18th, 2015

Shawon Shahryiar over at Embedded Lab has written an article discussing the basics of STM32 ADC: The block diagram shown above might look a bit complex at first but it still worth having a look. It shows us the interfaces that are related to the ADC block and some key features. It...

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App note: Adding an ADC to the Raspberry Pi

Saturday, February 21st, 2015

  Adding an ADC to the Raspberry Pi app note (PDF!) from  FTDIChip: This application note will show how to connect the RPI-Hub-Module to the Raspberry Pi and install FTDI drivers to control the module. The application note will then explain how the module may be used to read values from an external...

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Posted in app notes | 3 Comments »

App note: Analog-to-Digital conversion using a PIC16C5X/PIC16F5X

Sunday, October 12th, 2014

PIC16C5X and PIC16F5X microcontroller families are low cost off-the-shelf solution for common analog measurements like voltage and current. Here's an app note (PDF) from Microchip on how to do A/D conversion on these chips. The converter requires only five external components and is software and hardware configurable for conversion resolutions...

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Wireless servo controller II

Friday, September 5th, 2014

Ondřej Karas of DoItWireless writes: We described simple method, how to drive modellers servo. Today, we are going to try to drive this servo from potentiometer connected to TR module ADC. It is reaction to forum thread where is discussion about airplane model control possibility. Check out the video after the...

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Wireless ADC to relay example

Thursday, August 14th, 2014

Ondřej Karas of DoItWireless writes: Sometimes, you need to measure analog signal and then switch something on or off according to the result. This short example shows, how to do it. Everything you need is DDC-SE-01 module as a sensor module and DDC-RE-01 as relay module. Of course you need DK-EVAL-04...

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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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OpenBCI EEG project

Thursday, January 23rd, 2014

The OpenBCI project is an open source project with the goal of expanding the availability of hardware for maker experimentation with brain wave measurement. It was recently fully funded on Kickstarter. According to the developers, OpenBCI is a versatile and affordable 8-channel EEG signal capture platform built around Texas Instrument’s...

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Posted in Arduino, code, measurement, open source | 2 Comments »

Tutorial – Arduino and the TI ADS1110 16-bit ADC

Thursday, July 4th, 2013

John Boxall over at Tronixstuff has a series of Arduino tutorials.  This chapter fifty-three of a series will show you how to use the TI ADS1110 16-bit ADC with Arduino: Moving on from the last chapter where we explained an 8-bit ADC, in this instalment we have the Texas Instruments...

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Posted in Arduino, how-to | 1 Comment »

App note: Process high-voltage input levels into a low-voltage ADC without losing much SNR

Saturday, May 4th, 2013

Here’s an application note from Maxim: Process high-voltage input levels into a low-voltage ADC without losing much SNR It is often difficult to find an analog-to-digital converter (ADC) that aligns with the analog input range, but also has the appropriate number of inputs, the needed size, and the correct sample speed....

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Aud-I/O I2S audio breakout

Tuesday, November 13th, 2012

Bertho is working on a breakout board for the WM8782 I2S ADC and the WM8523 I2S DAC. The boards are intended to be interfaced with an ARM micro-controller. I am working on a project that requires some real audio and I always wanted to play with I2S (attached to an...

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Posted in ARM, project logs | 5 Comments »

Jeri’s one-bit ADC

Wednesday, November 7th, 2012

One-bit ADC? Using a single flip-flop Jeri Ellsworth explains the principle behind ADC. This represents a simplified version of Delta-Sigma modulation.

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App note: Theory behind Delta-Sigma analog to digital converters

Saturday, August 11th, 2012

Maxim describes the theory behind Delta-Sigma ADCs: This in-depth article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on the difficult to understand key digital concepts of over-sampling, noise shaping, and decimation filtering. A description of new converter, the MAX1402, and several applications for Delta-Sigma converters...

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Interfacing the LTC2440 24bit ADC with the Arduino

Monday, July 2nd, 2012

Jbeale shows how to interface the LTC2440 24bit analog to digital converter with the Arduino. He provided the pin connections, a small sketch, as well as some advice to get it up and running. I should add: to reach the specified noise performance of this part (200 nV RMS) you...

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Posted in Arduino | 3 Comments »

Tutorial: Accurate Arduino ADC readings

Wednesday, June 13th, 2012

The Hardware Hacking guys have posted this brief tutorial with tips on improving the accuracy of ADC reading with the Arduino. They endeavor to do this by measuring the internal 1.1V reference voltage (it is available for ATMega 168 and ATMega 328 only) and, then, by normalizing the ADC. Via...

Posted in Arduino, measurement, tutorials | 1 Comment »

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