Title :
Absolute voltage amplification using dynamic feedback control
Author :
de Jong, Paul C. ; Meijer, Gerard C M
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
8/1/1997 12:00:00 AM
Abstract :
A new principle of voltage amplification that is insensitive to drift and aging effects of the feedback resistors is presented. The effect of mismatch of these resistors is reduced to a second-order effect which results in a total gain error of less than 5×10-6 without the need for any calibration. Moreover, the long-term stability of the whole amplifier is guaranteed by the design when used as a chopper amplifier
Keywords :
1/f noise; choppers (circuits); circuit noise; circuit stability; feedback amplifiers; 1/f noise; absolute voltage amplification; aging effects; chopper amplifier; dynamic feedback control; feedback resistors; long-term stability; mismatch; second-order effect; total gain error; Aging; Calibration; Choppers; Clocks; Feedback control; Laser feedback; Resistors; Stability; Switches; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
