A 70 Ms / s 110 mW 8 - b CMOS folding and interpolating A / D converter
نویسنده
چکیده
A CMOS analog to digital converter based on the folding and interpolating technique is presented. This technique is successfully applied in bipolar A/D converters and now also becomes available in CMOS technology. The analog bandwidth of the A/D converter is increased by using a transresistance amplifier at the outputs of the folding amplifiers and, due to careful circuit design, the comparators need no offset compensation. The result is a small area (0.7 mmz in 0.8 pm CMOS), high speed (70 MSls), and low-power (110 mW at 5 V supply, including reference ladder) A/D converter. A 3.3 V supply version of the circuit runs at 45 MS/s and dissipates 45 mW.
منابع مشابه
A 70 Ms / s 110 mW 8 - b CMOS folding and interpolating
A CMOS analog to digital converter based on the folding and interpolating technique is presented. This technique is successfully applied in bipolar A/D converters and now also becomes available in CMOS technology. The analog bandwidth of the A/D converter is increased by using a transresistance amplifier at the outputs of the folding amplifiers and, due to careful circuit design, the comparator...
متن کاملPapers S / s 110 - mW 8 - b CM g and Interpolating A / D Converter
A CMOS analog to digital converter based on the folding and interpolating technique is presented. This technique is successfully applied in bipolar A/D converters and now also becomes available in CMOS technology. The analog bandwidth of the A/D converter is increased by using a transresistance amplifier at the outputs of the folding amplifiers and, due to careful circuit design, the comparator...
متن کاملA Wide Input Bandwidth 7-bit 300-MSample/s Folding and Current-Mode Interpolating ADC
A 7-bit Nyquist folding and interpolating analog-to-digital converter (ADC) that converts at 300 MSamples/s is presented. Using current-mode signal processing techniques for analog preprocessing and a front-end sample-and-hold, the proposed 7-bit folding and interpolating ADC yields a wide input bandwidth up to 60 MHz with six effective number of bits. The ADC consumes 200 mW from a 3.3-V power...
متن کاملAn 80-MHz, 80-mW, 8-b CMOS Folding A/D Converter with Distributed Track-and-Hold Preprocessing - Solid-State Circuits, IEEE Journal of
An analog-to-digital converter incorporating a distributed track-and-hold preprocessing combined with folding and interpolation techniques has been designed in CMOS technology. The presented extension of the well known folding concept has resulted in a 75 MHz maximum full-scale input signal frequency. A signal-to-noise ratio of 44 dB is obtained for this frequency. The 8-b A/D converter achieve...
متن کاملDesign Issues for Low Voltage, High Speed Folding and Interpolating A/d Converters
In this paper are discussed design issues for a folding and interpolating A/D converter (ADC) in 0.35 μm CMOS technology. A new averaging technique is used for reducing the DNL and INL errors. The goal is a speed of 100MS/s and a resolution of 10 bits with a supply voltage of 2.5V or less.
متن کامل