Title :
A wide-band 10-b 20 Ms/s pipelined ADC using current-mode signals
Author :
Real, Peter ; Robertson, David H. ; Mangelsdorf, Christopher W. ; Tewksbury, Theodore L.
Author_Institution :
Analog Devices Semicond., Wilmington, MA, USA
fDate :
8/1/1991 12:00:00 AM
Abstract :
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-μm BiCMOS process with thin film resistors
Keywords :
BIMOS integrated circuits; analogue-digital conversion; pipeline processing; 100 MHz; 2 micron; 20 MHz; A/D convertor; BiCMOS process; current-mode signals; differential flash ADC; fully segmented D/A converters; monolithic type; pipelined ADC; reference distribution technique; thin film resistors; wideband ADC; Bandwidth; BiCMOS integrated circuits; Broadband amplifiers; Clocks; Differential amplifiers; Pipelines; Synchronization; Ultrasonic imaging; Voltage; Wideband;
Journal_Title :
Solid-State Circuits, IEEE Journal of
