Title :
Analogue circuit building blocks with amorphous silicon thin film transistors
Author :
Sambandan, S. ; Kumar, A. ; Sakariya, K. ; Nathan, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
3/17/2005 12:00:00 AM
Abstract :
Useful building blocks such as the analogue subtractor, adder, and current source, with amorphous silicon (a-Si:H) thin film transistors (TFTs) are presented. The circuits built with only n-channel devices tackle the problem of threshold voltage instability in the TFT to provide stable transfer characteristics.
Keywords :
adders; amorphous semiconductors; analogue circuits; circuit stability; constant current sources; elemental semiconductors; silicon; thin film transistors; Si:H; amorphous silicon; analogue circuit building blocks; analogue voltage adder; analogue voltage subtractor; mirrorable current sink; mirrorable current source; n-channel TFT; stable transfer characteristics; thin film transistors; threshold voltage instability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20057573
