Title :
Load-adaptive, low switching-noise output buffer
Author :
Lee, Seung-Wook ; Shim, Daeyun ; Jung, Yeon-Jae ; Lee, Dong-Yun ; Kim, Chang-Hyun ; Kim, Wonchan
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
6/10/1999 12:00:00 AM
Abstract :
An output buffer is described which employs built-in load monitoring in order to bound the transition time over a wide range of load conditions. The adaptive control of driving current enables the switching-noise to be kept to a minimum value. The experimental chip, which was designed to bound the fall time within 6 ns for loading capacitance up to 100 pF, revealed a reduced switching-noise level, 15-35% of a conventional buffer
Keywords :
CMOS digital integrated circuits; adaptive control; buffer circuits; capacitance; electric current control; integrated circuit noise; monitoring; CMOS IC; adaptive control; built-in load monitoring; driving current; load conditions; load-adaptive output buffer; loading capacitance; low switching-noise buffer; transition time;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990712
