Despite the popularity of digital devices, real world signals are typically represented by analog signals. Digital control systems process real world analog signals by using an analog-to-digital converter (ADC) to convert analog signals to digital. Conversions back to analog signals are accomplished using a digital-toanalog converter (DAC). Maxim offers a complete line of precision DACs from 8 ...

A CMOS image sensor with pixel level analog to digital conversion is presented. Each 13.8μm x 13.8μm pixel area contains a photodiode and a dynamic comparator using the maximum voltage swing available (0V 1.8V). The comparator does not need any bias current and is insensitive to fabrication process variations. Also a digital to analog converter (DAC) is used to deliver a voltage reference in or...

Digital-to-analog converters (DAC) transform signals from the abstract digital domain to the real analog world. In many applications, DAC’s play a crucial role. Due to variability in the production, various errors arise that influence the performance of the DAC. We focus on the current errors, which describe the fluctuations in the currents of the various unit current elements in the DAC. A key...

The architecture for very-high speed DAC with medium oversampling and high resolution is discussed. The scheme uses an hybrid sigma-delta scheme that processes LSBs of the input word and obtain digital to analog conversion with an hybrid current steering DAC with dynamic element matching of MSBs and time interleaved conversion of LSBs. The return-to-zero for all elements ensures the required li...

he ever-dropping cost of Very Large Scale Integrated (VLSI) circuits allows many analog functions to be done digitally. However, the real world still is, and will always continue to be, a fundamentally analog place. Thus, the analog signal of interest is translated into a format that a digital computer can utilize. This translation is the function of an Analog to Digital Converter (ADC). After ...

Abstract— In this paper, a generic and simple approach to design Continuous-Time Sigma-Delta Modulators (CT ƩΔMs) based on Finite Impulse Response Digital-to-Analog Converter (FIR DAC) is introduced. The numerical conversion from Continuous-Time to Discrete-Time allows the designer to explore complex modulator architectures and different feedback DAC shapes, without dealing with difficult equat...

This paper presents an adaptive digital resolution improvement method for extrapolating and recursive analog-to-digital converters (ADCs). The presented adaptively enhanced ADC (AE-ADC) digitally estimates the digital equivalent of the input signal by utilizing an adaptive digital filter (ADF). The least mean squares (LMS) algorithm also determines the coefficients of the ADF block. In this sch...

We present work toward the development of a digital to analog (DAC) conversion scheme to efficiently achieve the bit-depths required in high performance infrared scene projection. This is achieved by appropriately dividing the conversion amongst the close support electronics (CSE), the periphery of the read-in integrated-circuit (RIIC) chip, and the pixel drive circuitry.