© The Institution of Electrical Engineers
A novel circuit technique is presented to prevent op-amps in switched-capacitor circuits from generating ‘spikes’ in the nonoverlapping period of clock phases. This technique is universal in that it is applicable to offset-compensated, parasiticand gain-insensitive amplifiers, integrators and sample/hold circuits. Experimental waveforms are also given to demonstrate its validity.
References
-
-
1)
-
Haug, K., Maloberti, F., Temes, G.C.: `Switched-capacitor circuits with low op-amp gain sensitivity', Proc. int. symp. on circuits and systems, 1986, p. 797–800.
-
2)
-
K.R. Laker ,
P.E. Fleischer ,
A. Ganesan
.
Parasitic insensitive bi-phase switched-capacitor filters realized with one operational amplifier per pole pair.
Bell Syst. Tech. J.
,
685 -
707
-
3)
-
L.E. Larson ,
G.C. Temes
.
Switched-capacitor gain stage with reduced sensitivity to finite amplifier gain and offset voltage.
Electron. Lett.
,
1281 -
1283
-
4)
-
K. Nagaraj ,
K. Singhal ,
T.R. Viswanathan ,
J. Vlach
.
Reduction of the finite-gain effect in switched-capacitor filters.
Electron. Lett.
,
644 -
645
-
5)
-
K. Nagaraj ,
J. Vlach ,
T.R. Viswanathan ,
K. Singhal
.
Switched-capacitor integrator with reduced sensitivity to amplifier gain.
Electron. Lett.
,
1103 -
1105
-
6)
-
K. Watanabe ,
K. Fujiwara
.
Offset-compensated switched-capacitor circuits.
Electron. Lett.
,
780 -
781
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19870310
Related content
content/journals/10.1049/el_19870310
pub_keyword,iet_inspecKeyword,pub_concept
6
6