Title :
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
fDate :
11/1/1998 12:00:00 AM
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;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
