Title :
A 0.35μm current-mode T/H with -81dB THD
Author :
Chennam, Madhu ; Fiez, Terri S.
Author_Institution :
Texas Instruments, Inc., Dallas, TX, USA
Abstract :
A closed-loop current-mode track-and-hold (T/H) has been designed and fabricated in a 0.35μm quad-metal, double-poly CMOS process. The measured total harmonic distortion (THD) is -81dB and -65dB with an input signal frequency of 100kHz and 10MHz, respectively. The T/H features a highly linear transconductor and stability enhancement through feedback compensation.
Keywords :
CMOS integrated circuits; circuit feedback; current-mode circuits; harmonic distortion; sample and hold circuits; 0.35 micron; 10 MHz; 100 kHz; CMOS process; closed-loop current-mode circuit; current-mode T/H; feedback compensation; linear transconductor; total harmonic distortion; track-and-hold circuit; Buffer storage; CMOS process; Capacitors; Circuits; Output feedback; Sampling methods; Switches; Total harmonic distortion; Transconductors; Voltage;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328394
