New 12-bit source-follower track-and-hold circuit suitable for high-speed applications

An analysis of a cascode source-follower with all transistors operating in saturation mode is presented. The new structure provides means to mitigate the effects of nonlinearities caused by transistor capacitances. It is also studied the effects of adding a sampling switch at the output of the sourc...

Full description

Saved in:
Bibliographic Details
Main Authors: Campos, M. V., Fortunato, A. L., dos Reis Filho, Carlos Alberto
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Capacitance
CMOS integrated circuits
harmonic distortion
Integrated circuit modeling
Linearity
source sampling
source-follower
Threshold voltage
Transistors
voltage buffer
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An analysis of a cascode source-follower with all transistors operating in saturation mode is presented. The new structure provides means to mitigate the effects of nonlinearities caused by transistor capacitances. It is also studied the effects of adding a sampling switch at the output of the source-follower. Performance results of 0.35μm CMOS implementation and dimensioning methodology of the resulting source sampling circuit is presented along the text. The circuit achieves more than 12 bits of linearity in the frequencies from 0 to 100MHz while consuming 10mW.
ISSN:2324-8432
DOI:10.1109/VLSISoC.2011.6081655