For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
A Study to Realize a CMOS Pipelined Current-Mode A-to-D Converter for Video Applications
Yasuhiro SUGIMOTO Yuji GOHDA Shigeto TANAKA
IEICE TRANSACTIONS on Electronics
Publication Date: 2006/06/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
current-mode circuit, pipelined ADC, low-voltage, high-resolution,
Full Text: PDF>>
The possibility of realizing a CMOS pipelined current-mode A-D converter (ADC) for video applications has been examined. Two times the input current is obtained at the output of a bit-block of a pipelined ADC by subtracting the negative output current from the positive output current in the pseudo-differential configuration. Subtraction of the sub-DAC (D-to-A converter) current from the two times the input current is performed by controlling of the current comparator, which compares the positive and the negative input currents. A prototype chip has been implemented using 0.35 µm CMOS devices. It operates in 28 MS/s, and showed a 42 dB signal-to-noise ratio from the 2 V supply voltage.