Title :
A new high speed low distortion switched-current cell
Author :
Shah, Peter ; Toumazou, Christofer
Author_Institution :
PCSI, San Diego, CA, USA
Abstract :
A new switched-current cell is presented which simultaneously offers high speed, low distortion, low gain error, and a virtual ground input. In a simulation example 0.01% distortion was achieved at 50 MHz sampling rate which makes the cell very well suited for high accuracy high speed filtering applications. It is outlined how the cell can be used in FIR filtering and to form integrators with high DC gain and low distortion
Keywords :
FIR filters; active filters; circuit feedback; delay lines; electric distortion; integrating circuits; switched current circuits; 50 MHz; DC gain; FIR filtering; distortion; gain error; high speed circuits; high speed filtering; integrators; sampling rate; switched-current cell; virtual ground input; Circuits; Educational institutions; Filtering; Finite impulse response filter; Impedance; Negative feedback; Sampling methods; Signal to noise ratio; Switches; Voltage;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.539974
