Title :
Dynamic amplifiers: settling, slewing & power issues
Author :
Wang, Feng ; Harjani, Ramesh
Author_Institution :
Minnesota Univ., Minneapolis, MN, USA
fDate :
30 Apr-3 May 1995
Abstract :
The settling behavior and power consumption of dynamic opamps are considered. The dynamic opamp is compared with a class A opamp for different clock frequencies. A single pole model in a closed loop configuration is used to estimate slewing and settling behavior. SPICE simulation results agree with theoretical predictions. It is shown that for the same power consumption dynamic opamps settle much faster than class A opamps. Dynamic opamps are particularly well suited for ultra low power switched-capacitor designs
Keywords :
SPICE; circuit analysis computing; closed loop systems; feedback amplifiers; integrating circuits; operational amplifiers; switched capacitor networks; SPICE simulation; clock frequencies; closed loop configuration; dynamic amplifiers; low power switched-capacitor designs; opamps; power consumption; settling; single pole model; slewing; Augmented virtuality; Capacitors; Charge transfer; Circuits; Clocks; Differential amplifiers; Equations; Power amplifiers; Voltage;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.521515
