A wide-band 10-b 20 Ms/s pipelined ADC using current-mode signals

A 10-b pipelined analog-to-digital converter (ADC) is presented which makes extensive use of differential current-mode signals. The converter samples at 20 MHz and has an analog bandwidth exceeding 100 MHz. The architecture incorporates the design of a wide-bandwidth, fully differential current-in,...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 1991-08, Vol.26 (8), p.1103-1109
Main Authors: Real, P., Robertson, D.H., Mangelsdorf, C.W., Tewksbury, T.L.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
BiCMOS integrated circuits
Broadband amplifiers
Clocks
Differential amplifiers
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Pipelines
Synchronization
Ultrasonic imaging
Voltage
Wideband
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Summary:A 10-b pipelined analog-to-digital converter (ADC) is presented which makes extensive use of differential current-mode signals. The converter samples at 20 MHz and has an analog bandwidth exceeding 100 MHz. The architecture incorporates the design of a wide-bandwidth, fully differential current-in, current-out track-and-hold (T/H) amplifier differential flash A/D converters, and fully segmented D/A converters. A unique reference distribution technique allows precise trimming of the gains of the DACs and flash converters. The converter is built on a 2- mu m BiCMOS process with thin film resistors.< >
ISSN:0018-9200
1558-173X
DOI:10.1109/4.90063