A novel scheme of photonic aided vector millimeter-wave (mm-wave) signal generation without a digital-to-analog converter (DAC) is proposed. Based on our scheme, 20 Gb/s 4-ary quadrature amplitude modulation (4-QAM) mm-wave generated using DAC. The experiment results demonstrate that the bit error rate (BER) 4-QAM can reach below hard-decision forward-error-correction threshold after delivery o...

A new Mixed-Signal Built-in self-test approach that is based upon the step response of a reconfigurable (or multifunction) analog block is presented in this paper. The technique requires the overlapping step response of the Circuit Under Test (CUT) for two circuit configurations. Each configuration can be realized by changing the topology of the CUTor by sampling two CUTnodes with dsffering ste...

This paper presents a novel technique for online calibration and digital correction of the mismatches among the elements of the digital-to-analog converter (DAC) used in the feedback loop of multi-bit sigma–delta (RD) modulators. The proposed method, with an extremely limited amount of additional circuitry, allows the mismatches among the elements of the DAC to be accurately measured and correc...

In past few years we have seen many courses offered separately for embedded systems based on various industry standard 8/16/32-bit micro-controllers; their programming languages like C/C++/assembly language; operating systems concepts and for digital system design based on FPGAs and CPLDs. Some courses were also focused on wireless networking standards like Bluetooth, Wi-Fi and ZigBee; interfac...

In this paper we review a background digital DAC linearization technique for Delta-Sigma analog-to-digital converters (∆Σ ADCs). A description of the theory behind this technique, details on a modulator implementation, measurement results, and finally an outlook for enhancing this technique for bandpass ∆Σ ADCs is provided. The technique has been successfully implemented in hardware and we here...

In the last years the technology improvements of Digital-to-Analog Converters (DACs) has extended the use of digital techniques in a multitude of applications. Consequently, there is an increasing attention to DAC topics, from researchers and manufacturers. The paper is aimed at providing a metrological overview and the leading trends of the research in the field of DACs. 2005 Elsevier Ltd. All...

A 10-b current steering CMOS digital-to-analog converter (DAC) is described, with optimized performance for frequency domain applications. For sampling frequencies up to 200 MSample/s, the spurious free dynamic range (SFDR) is better than 60 dB for signals from dc to Nyquist. For sampling frequencies up to 400 MSample/s, the SFDR is better than 55 dB for signals from dc to Nyquist. The measured...

This paper presents a resistance matching based selftestable current-mode R-2R Digital-to-Analog Converter (DAC). The Built-In Self-Test (BIST) circuits are employed to observe the current redistributions in the resistance matching branches converted from the R-2R network in the DAC, and then the redistributed currents are transformed to voltages to detect the R-2R network with extra Design For...

This paper presents the development of a 38.5 kS/s 10-bit programmable reference SAR ADC which is in MIMOS’s 0.35 μm CMOS process. The design uses a resistive DAC, a dynamic comparator with pre-amplifier and logic to create 10 effective bits ADC. A programmable reference circuitry allows the ADC to operate with different input ra 0.6 V to 2.1 V. The ADC consumed less than 7.5 mW power with a 3 ...