A 1.5-V bootstrapped pass-transistor-based Manchester carry chain circuit suitable for implementing low-voltage carry look-ahead adders

Author

Lou, J.H. ; Kuo, J.B.

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

45

Issue

11

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

1191

Lastpage

1194

Abstract

This paper reports a 1.5-V bootstrapped pass-transistor-based Manchester carry chain circuit suitable for implementing low-voltage carry look-ahead adders. As verified by the experimentally measured data from a test chip fabricated using a 0.8-μm single-poly double-metal CMOS technology, with the bootstrapped pass-transistor-based Manchester carry chain circuit technique, the speed performance of a 16-bit carry look-ahead adder circuit is enhanced by 56% at a supply voltage of 1.5 V as compared to the adder using the conventional Manchester carry chain circuit

Keywords

CMOS logic circuits; adders; carry logic; 0.8 micron; 1.5 V; Manchester carry chain circuit; bootstrapped pass-transistor; low-voltage carry look-ahead adders; single-poly double-metal CMOS technology; Adders; CMOS logic circuits; CMOS technology; Circuit testing; MOS devices; Propagation delay; Signal generators; Signal processing; Very large scale integration; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.735441

Filename

735441