A Simple A/D Converter Using a PLD

You can really do a lot of things with PLDs. For example, with just 26 macrocells you can implement an 8-bit A/D converter based on a sigma-delta modulator (ΣΔM) followed by a digital low-pass/conversion filter. The accuracy, resolution and complexity of this project are described in this article. An interesting aspect is that the digital filter accounts for most of the complexity.

To make accurate voltages measurements you need an A/D converter (ADC) chip which has good resolution. The folks at Elektor Labs have developed a board containing a four-channel 16-bit ADC. It’s no coincidence the board uses a Gnublin/EEC connector which makes it compatible with the Elektor’s Linux board, Xmega Webserver and the new Extension shield for Arduino. A universal C library is included to make integration a walk in the park.

Microchip announces a family of compact Analogue-to-Digital Converters (ADCs) that offer high programmable data rates of up to 153.6 kilosamples per second (kSPS).

This is a submission from Microchip about 12 new Successive Approximation Register (SAR) Analogue-to-Digital Converters (ADCs) together with a companion differential amplifier designed specifically for the new portfolio of SAR ADCs.

Data conversion solutions are important elements in high-speed aerospace systems. Recent advances high-speed data converters are revolutionising the design of systems for space exploration.

I wrote previously that it is hard to pass the EXIT / AUSGANG gates at the embedded world trade show in Nuremberg and not have a few demo or dev kits in your sponsored rucksack. That’s why the show is a must-attend for serious electronicists of all ages. I consider myself one but this year I was unable to attend the show and what do you think, I still I received a kit — it simply arrived in the mail a few days later. It is the Otii Arc Demo kit from IoT developers Qoitech in Sweden hence the polar bear on the box. On the Arc box proper I saw “Sony Belgium” printed.

A new dual 14-bit A/D converter (ADC) designed to support communications applications capable of direct sampling wide bandwidth analog signals of up to 5 GHz has a −3 dB bandwidth of 9 GHz. The ADC cores feature a multistage, differential pipelined architecture with integrated output error correction logic. The device’s inputs support a variety of user-selectable input ranges while an integrated voltage reference simplifies the use of the part.

A while back we made a little break-out-board with a ADS1115 A/D converter (140169-1). It has four inputs that can be used in a single-ended mode or two inputs can be used in a differential mode. A project still in development is a power meter for mains powered appliances.

A while back we made a little break-out-board with a ADS1115 A/D converter (140169-1). It has four inputs that can be used in a single-ended mode or two inputs can be used in a differential mode. A project still in development is a power meter for mains powered appliances.

The assembled module is available in our shop.