PROJECT TITLE :

A 0.13- m CMOS Current-Mode All-Pass Filter for Multi-GHz Operation

ABSTRACT:

A CMOS wide-bandwidth initial-order current-mode all-pass filter (APF) is discussed. The circuit consists of 1 transistor, a resistor, a grounded inductor, and a load. When used with a current mirror as the load, this-mode filter exhibits a high output impedance, which is advantageous from an integration point of read and allows this configuration to be cascaded with current-mode circuits. The operation of the proposed circuit is experimentally validated. The APF implemented in IBM CMOS was measured to possess the pole-zero pair located at 8.32 GHz and to attain a 55 ps group delay while consuming 19 mW from a 1.five-V offer. This paper experimentally demonstrates a CMOS APF that operates at multi-GHz frequencies and achieves the best delay-bandwidth products of the revealed CMOS initial-order APFs known to the authors.