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Data Converters

How does a basic digital-to-analog converter (DAC) perform signal conversion?

May 23, 2025 By Rakesh Kumar, PhD

A digital-to-analog converter (DAC) transforms digital binary data into an analog signal using weighted contributions from each bit. In this FAQ, we discuss the two most commonly known ways of DAC conversion: weighted resistor DAC and R-2R ladder DAC. Before getting into the conversion types, let us understand the basic steps involved in a DAC […]

Filed Under: Analog IC Tips, Data Converters, FAQ, Featured

Understanding ADC specs and architectures: part 1

April 28, 2025 By Rick Nelson

Analog-to-digital converters are the heart of most test equipment, setting the stage for the digital processing of analog signals. Several posts over the past year or so have involved digital signal processing. For example, we have covered the fast Fourier transform (FFT), the inverse FFT, and discrete convolution. To perform these operations on real-world signals, […]

Filed Under: Analog IC Tips, Artificial intelligence, Data Converters, FAQ, Featured Tagged With: FAQ

The ups and downs of bad DACs

May 30, 2022 By dherres

A digital-to-analog converter (DAC) is more prone than an analog/digital converter to signal degradation. DACs are complex devices requiring precisely matched components. For this reason, with notable exceptions, DACs are implemented as mixed-signal ICs based on MOSFET technology. Discrete component DACs are found in radar systems and high-speed test equipment including digital sampling oscilloscopes. Digital […]

Filed Under: Data Converters, FAQ, Featured, Test and Measurement Tips Tagged With: analogdevices, FAQ, texasinstrumentsinc

24-bit wideband ADC offers data rates up to 400 kSPS

December 6, 2021 By Redding Traiger

Texas Instruments introduced the smallest 24-bit wideband analog-to-digital converter (ADC) that delivers industry-leading signal-measurement precision at wider bandwidths than competing ADCs. The ADS127L11, the newest product in TI’s portfolio of precision wideband ADCs, achieves ultra-precise data acquisition in a 50% smaller package, significantly optimizing power consumption, resolution, and measurement bandwidth for a wide range of […]

Filed Under: Analog IC Tips, Data Converters Tagged With: texasinstrumentsinc

Sigma Delta ADC vs. SAR vs. Pipeline: How to Choose

May 29, 2021 By Janet Heath Leave a Comment

Assuming that you are familiar with the fundamental specifications of an ADC and what they mean, the next step is to know your entire signal chain well and then work to fit the ADC to the requirements. After carefully determining signal chain requirements, then select your ADC with the understanding that if the ADC is […]

Filed Under: Analog ICs, Data Converters, FAQ, Featured Tagged With: FAQ

D/A converters excel at high-fidelity audio apps

October 11, 2018 By Aimee Kalnoskas Leave a Comment

MUS-IC D/A converters

ROHM has launched a new branding “MUS-IC” reflecting ROHM’s focus on solutions for high-fidelity audio products. This branding covers a range of D/A converter ICs (DAC ICs), optimized for high-fidelity reproduction, and power supply products. The increased adoption of high-resolution audio sources has lately strengthened the demand for audio equipment that can deliver an appropriate sound […]

Filed Under: Analog IC Tips, Analog ICs, Data Converters Tagged With: rohmsemiconductor

What is a multiplying DAC?

June 20, 2017 By Janet Heath Leave a Comment

Multiplying digital-to-analog converters (MDACs) produce a (current) output signal that’s a product of the given reference voltage and the code (i.e., a string of 0s and 1s) flowing through it. All data converters require a voltage reference (VREF) and a typical, standard DAC needs a very stable fixed reference voltage in order to operate properly. […]

Filed Under: Analog IC Tips, Analog ICs, Data Converters, FAQ, Featured Tagged With: basics, FAQ

A/D converter supports IF sampling of signals up to 9 Ghz for 4G/5G basestations

April 27, 2017 By Aimee Kalnoskas

As part of a new series of high-speed analog-to-digital converters (A/D converters), Analog Devices, Inc. (ADI) today introduced the AD9208. Engineered for gigahertz-bandwidth applications, this A/D converter meets the increased spectral efficiency demands of 4G/5G multi-band wireless communications base stations. It also meets the reduced run-time targets of multi-standard production instrumentation and provides greater detection […]

The post A/D converter supports IF sampling of signals up to 9 Ghz for 4G/5G basestations appeared first on Analog IC Tips.

Filed Under: Analog IC Tips, Analog ICs, Data Converters Tagged With: analogdevicesinc

Top analog threads on EDAboard.com – February

March 2, 2017 By Aimee Kalnoskas

(editor’s note: Intrigued by the problem? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog IC forum threads.) Making gain positive and NF less than 7.0 dB – I have designed a mm-wave amplifier, as I intend to […]

The post Top analog threads on EDAboard.com – February appeared first on Analog IC Tips.

Filed Under: Amplifiers, Analog IC Tips, Analog ICs, Clocks & Timing, Data Converters, EE Forums, Featured, Wireless Tagged With: EDAboard.com

What is a CODEC?

February 17, 2017 By Janet Heath

In the embedded hardware world, the term CODEC stands for COder/DECoder and is basically an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) in one package. A codec, whether hardware or emulated in software, converts analog audio signals into digital signals for transmission or encodes them for storage in a digital format. Later, the decoder […]

The post What is a CODEC? appeared first on Analog IC Tips.

Filed Under: Analog IC Tips, Data Converters, FAQ, Featured Tagged With: basics, FAQ

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