Data converters, i.e., analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), are interface circuits between the analog and digital domains. They are used in, e.g., digital audio applications, data communication applications , and other types of applications where conversion between analog and digital signal representation is required. This work covers different aspects re...

You don't have to deal with ADCs or DACs for long before running across this often quoted formula for the theoretical signal-to-noise ratio (SNR) of a converter. Rather than blindly accepting it on face value, a fundamental knowledge of its origin is important, because the formula encompasses some subtleties which if not understood can lead to significant misinterpretation of both data sheet sp...

A software defined radio (SDR) system is based on state-of-the art technologies covering topics such as: smart antennas, radio frequency (RF) down/up converters, analog to digital converters (ADCs) and digital to analog converters (DACs), digital signal processors (DSPs), modelling and system description languages. This paper is focused in the ADC and studies the various parameters affecting it...

Sigma-delta modulator based digital-to-analog converters (DAC) have offered low-frequency designers a highly linear, high resolution data converter architecture that is highly amenable to integration with complex digital systems. Increasingly these data converters have been used to deliver all the power needed. In wireless applications, it is increasingly desirable to apply low-frequency sigma-...

The Compact Muon Solenoid (CMS) pixel group at Cornell University is building a silicon pixel detector test station that will model the detection and data acquisition system designed for the CMS experiment at the Large Hardron Collider (LHC) at CERN. With parts of the apparatus already functional, we have begun to understand and optimize the detector’s programmable settings, called DACs, that t...

This paper presents a self-test self-correction scheme for segmented current steering (CS) DACs. Prior art is critically analyzed. The new scheme improves the DAC linearity by improving the accuracy of the thermometer current sources. The algorithm, which controls the scheme, is described in details. A 12-bit CS DAC, with 6-6 segmentation, is implemented using the new scheme and algorithm. The ...

Abstract Digital-to-analog converters are crucial building blocks for telecommunication applications. For this kind of applications, the traditional static performance requirements do not apply. The dynamic performance is of the greatest importance. This paper discusses the aspects of the performance of CMOS digital-to-analog converters and models the influence of non-idealities of circuit comp...

Low power design has become popular nowadays because ofdevelopment of improveddata converters with high resolution in CMOS process. Electronic device manufacturersare competing each other to produce devices that can extend battery life, have inexpensive packaging and cooling systems as well as reduce the size.The objective of this paper is to review various low power designs in digital to analo...

A transconductance amplifier with extended bandwidth, which is a critical block in various applications including amplifiers, filters and DACs is presented. The presented technique introduces a differential-mode negative capacitance while introduces the common-mode positive capacitance such that it extends the differential-mode bandwidth and compensates the common-mode stability. The proposed t...

The increasing demand for small-form-factor, wireless devices motivates research on highly-integrated, low-cost transmitters [1]. This work describes techniques that potentially allow implementation of the transmitter at higher levels of integration than previously achieved. A prototype CMOS IC for a narrow-band PCS system operating at 1.75GHz includes two baseband signal paths, an image/harmon...