نتایج جستجو برای: digital to analog conversion dac

تعداد نتایج: 10723187  

2003
Mark N. Martin

We present a current output digital-to-analog converter (DAC) targeted for spacecraft applications. The DAC uses a switched current design and thermometer decoding guaranteeing monotonic behavior. Radiation Hard by Design techniques are used to mitigate potential total dose and Single Event Latch-up issues. A prototype DAC has been fabricated on a commercial 0.5μm process through the MOSIS serv...

2014
Daniel ARBET Gabriel NAGY Viera STOPJAKOVÁ Martin KOVÁČ

In this article, an on-chip self-calibrated 8bit R-2R digital-to-analog converter (DAC) based on digitally compensated input offset of the operational amplifier (OPAMP) is presented. To improve the overall DAC performance, a digital offset cancellation method was used to compensate deviations in the input offset voltage of the OPAMP caused by process variations. The whole DAC as well as offset ...

2013
Yeon-Ho Jeong Young-Chan Jang

A 10-bit 100-kS/s successive approximation register (SAR) analogto-digital converter (ADC) with rail-to-rail input range is proposed for a low power sensor interface. It consists of a time-domain comparator, a split capacitor-based digital-to-analog converter (SC-DAC) and a SAR logic. The time-domain comparator with an offset calibration technique is used to achieve a resolution of 10-bit. To r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق 1381

پس از بازنگری کلی بر تکنولوژی soi مدل و ترانزیستورهای soi و انواع روش های تبدیل سیگنال آنالوگ به دیجیتال مورد بررسی قرار می گیرد. در ادامه با طراحی زیرمدارهای مبدل a/d فلاش سه بینی اثر تکنولوژی soi بر این مدل بررسی می شود. مدل های soi بکاررفته از دانشگاه برکلی و پارامترهای آنها از دانشگاه فلوریدا تهیه شده و شبیه سازی مدارات بوسیله نرم افزار pspice5.0 و spice-opus انجام شده است. براساس شبیه سازی...

Journal: :IEEE Transactions on Circuits and Systems I: Regular Papers 2005

Journal: :IEEE Transactions on Signal Processing 2022

In a growing number of applications, there is need to digitize signals whose spectral characteristics are challenging for traditional Analog-to-Digital Converters (ADCs). Examples, among others, include systems where the ADC must acquire at once very wide but sparsely and dynamically occupied bandwidth supporting diverse services, as well signal interest subject strong narrowband co-channel int...

2011
Hossein Pakniat Mohammad Yavari

A new technique is proposed to eliminate the nonlinear error of a multibit digital-to-analog converter (DAC) used in a sigma-delta modulator where the solidity of multibit DAC against the clock jitter is reserved. By using dual quantization, this technique reduces the bit length of DAC to one bit and consequently eliminates its nonlinear error. A lowpass finite impulse response (FIR) filter wit...

Journal: :Circuits Systems and Signal Processing 2021

Abstract A control-bounded analog-to-digital converter consists of a linear analog system that is subject to digital control, and filter estimates the input signal from control signals. Such converters have many commonalities with delta–sigma converters, but they can use more general filters. The paper describes operating principle, gives transfer function analysis, filtering. In addition, disc...

Journal: :Sensors 2015
Min-Kyu Kim Seong-Kwan Hong Oh-Kyong Kwon

This paper presents a fast multiple sampling method for low-noise CMOS image sensor (CIS) applications with column-parallel successive approximation register analog-to-digital converters (SAR ADCs). The 12-bit SAR ADC using the proposed multiple sampling method decreases the A/D conversion time by repeatedly converting a pixel output to 4-bit after the first 12-bit A/D conversion, reducing nois...

2015
Kalmeshwar N. Hosur Girish V. Attimarad Harish M. Kittur

This paper focuses on Design and Implementation of 10 Bit, 2MS/s successive approximation Register (SAR) Analog to digital converter (ADC) using Split DAC architecture. This SAR ADC architecture is designed and simulated using GPDK 0.18um CMOS technology. It consists of different blocks like sample and hold, comparator, Successive Approximation Register (SAR) and Split Digital to analog convert...

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