Title :
A 100 dB, 480 MHz OTA in 0.7 μm CMOS for sampled-data applications
Author :
Burger, Thomas ; Huang, Qiuting
Author_Institution :
Integrated Syst. Lab., Swiss Federal Inst. of Technol., Zurich, Switzerland
Abstract :
A fully differential operational transconductance amplifier with a gain-bandwidth of 480 MHz at 52 degrees of phase margin and a DC-gain of 100 dB has been implemented in a 0.7 μm CMOS process. The circuit utilizes the regulated cascode gain enhancement technique and has a switched-capacitor dynamic common mode feedback structure. It has been designed for a +/- 3 V output swing at a single supply of 5 V. The power consumption is 145 mW
Keywords :
CMOS analogue integrated circuits; differential amplifiers; feedback amplifiers; operational amplifiers; sampled data circuits; switched capacitor networks; 0.7 micron; 100 dB; 145 mW; 480 MHz; 5 V; CMOS OTA; SC dynamic common mode feedback structure; fully differential OTA; operational transconductance amplifier; regulated cascode gain enhancement technique; sampled-data applications; switched-capacitor feedback structure; Application specific integrated circuits; Arthritis; Bandwidth; Capacitors; Clocks; Frequency; Gain; Nonlinear equations; Parasitic capacitance; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3117-6
DOI :
10.1109/CICC.1996.510521
