A 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 ban...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 2003-08, Vol.38 (8), p.1405-1410
Main Authors: Li, Yunchu, Sanchez-Sinencio, E
Format: Article
Language:English
Subjects:
Analog-digital conversion
Bandwidth
Chip formation
Circuits
CMOS
CMOS technology
Consumption
Data preprocessing
Folding
Frequency conversion
Interleaved codes
Interpolation
Power supplies
Preprocessing
Signal processing
Signal resolution
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Description
Summary: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 mm/sup 2/ active area, fabricated in 0.35-/spl mu/m CMOS.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2003.814429