Title :
An 18-GHz continuous-time Σ-Δ analog-digital converter implemented in InP-transferred substrate HBT technology
Author :
Jaganathan, Shrinivasan ; Krishnan, Sundararajan ; Mensa, Dino ; Mathew, Thomas ; Betser, Yoram ; Wei, Yun ; Scott, Dennis ; Urteaga, Miguel ; Rodwell, Mark
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
9/1/2001 12:00:00 AM
Abstract :
We report an 18-GHz clock-rate second-order continuous-time Σ-Δ analog-digital converter (ADC) implemented using InP-transferred substrate HBTs. Under two-tone test conditions, the ADC achieved 43 dB and 33 dB SNR at signal frequencies of 500 MHz and 990 MHz, respectively. The IC occupied 1.95 mm2 die area and dissipated ~1.5 W
Keywords :
III-V semiconductors; bipolar integrated circuits; delta-sigma modulation; high-speed integrated circuits; indium compounds; integrated circuit testing; 1.5 W; 18 GHz; 500 MHz; 990 MHz; InP; continuous-time Σ-Δ analog-digital converter; die area; second-order analog-digital converter; signal frequencies; transferred substrate HBT technology; two-tone test conditions; Analog-digital conversion; Clocks; Computer architecture; Filters; Frequency; Heterojunction bipolar transistors; Indium gallium arsenide; Sampling methods; Signal resolution; Signal to noise ratio;
Journal_Title :
Solid-State Circuits, IEEE Journal of
