Title :
An 8-GHz bandwidth 1-GS/s GaAs HBT dual track-and-hold
Author :
van der Wagt, J.P.A. ; Teshome, M.
Author_Institution :
Rockwell Int. Corp., Thousand Oaks, CA, USA
Abstract :
A track-and-hold is a critical sub-circuit of a wideband pipelined ADC. A 1-GS/s fully differential dual track-and-hold circuit fabricated in an 80-GHz f/sub T//fax, GaAs HBT production process exhibits an input bandwidth of 8.4 GHz (0.5 V/sub pp/) and 9.3 GHz (small signal). Total harmonic distortion is -59 dB for 1-Vpp 1-GHz input, and -42 dB for 0.5-V/sub pp/ 5-GHz input. The chip occupies 0.9 mm/spl times/1.8 mm active area and consumes 2.2 W from /spl plusmn/5 V.
Keywords :
III-V semiconductors; analogue-digital conversion; bipolar analogue integrated circuits; gallium arsenide; harmonic distortion; heterojunction bipolar transistors; high-speed integrated circuits; sample and hold circuits; -5 V; 2.2 W; 5 V; 8 GHz; GaAs; GaAs HBT dual track/hold IC; THD; fully differential configuration; total harmonic distortion; wideband pipelined ADC; Analog-digital conversion; Bandwidth; Circuits; Frequency; Gallium arsenide; Heterojunction bipolar transistors; IEEE Press; Indium phosphide; Microwave Theory and Techniques Society; Sampling methods;
Conference_Titel :
VLSI Circuits, 2001. Digest of Technical Papers. 2001 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
4-89114-014-3
DOI :
10.1109/VLSIC.2001.934243
