Title :
Analytical foundations of current-feedback amplifiers
Author_Institution :
San Francisco State Univ., CA, USA
Abstract :
Current-feedback amplifiers (CFAs), also called transimpedance amplifiers, are a special type of operational amplifier (op-amp) which exploit clever circuit topologies in conjunction with high-speed complementary bipolar processes in order to achieve extremely fast dynamics, such as gain-bandwidth products in the gigahertz range and settling times to 0.1% in the 10 ns range. The analytical foundations of CFAs are discussed. Specific topics include CFA dynamics, second-order effects, noise in CFAs, and application considerations
Keywords :
bipolar analogue integrated circuits; feedback amplifiers; integrated circuit noise; linear network analysis; operational amplifiers; circuit topologies; current-feedback amplifiers; high-speed complementary bipolar processes; noise; op-amp; operational amplifier; second-order effects; transimpedance amplifiers; Capacitance; Circuit testing; Force feedback; Impedance; Mirrors; Negative feedback; Operational amplifiers; Steady-state; Topology; Voltage;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393914
