Title :
A wide input bandwidth 7-bit 300-MSample/s folding and current-mode interpolating ADC
Author :
Li, Yunchu ; Sánchez-Sinencio, Edgar
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
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 supply. The chip occupies 1.2 mm2 active area, fabricated in 0.35-μm CMOS.
Keywords :
CMOS integrated circuits; analogue-digital conversion; current-mode circuits; interpolation; 0.35 micron; 200 mW; 3.3 V; 60 MHz; 7 bit; CMOS IC; Nyquist folding/interpolating ADC; analog preprocessing; analog-to-digital converter; current-mode interpolating ADC; current-mode signal processing techniques; front-end sample/hold; wide input bandwidth; Analog-digital conversion; Bandwidth; CMOS technology; Data preprocessing; Frequency conversion; Interleaved codes; Interpolation; Power supplies; Signal processing; Signal resolution;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2003.814429
