Title :
A new high-dynamic range dual-loop power-to-current amplifier
Author :
Van Zeijl, Paul T M
Author_Institution :
Electron. Res. Lab., Delft Univ. of Technol., Netherlands
fDate :
6/1/1989 12:00:00 AM
Abstract :
The design and performance of a balanced amplifier with a dual differential feedback loop in a high-frequency BiFET (bipolar-field effect transistor) process (fT=3 GHz) is presented. By means of this dual feedback loop, a linear, accurately known input impedance is obtained, combined with a high-output impedance. The noise figure of the realized amplifier is lower than 3 dB. The amplifier is especially intended for low-noise, low-distortion termination of antennas, cables, or filters and for driving bipolar switching mixers up to frequencies well above 100 MHz
Keywords :
differential amplifiers; feedback; high-frequency amplifiers; linear integrated circuits; monolithic integrated circuits; radiofrequency amplifiers; wideband amplifiers; 100 MHz; 3 GHz; 3 dB; HF BiFET process; JFET; RF type; VHF; antennas; balanced amplifier; bipolar switching mixer driving; cables; dual differential feedback loop; dual-loop; filters; high-dynamic range; high-output impedance; input impedance; low noise termination; low-distortion termination; power-to-current amplifier; wideband operation; Cables; Differential amplifiers; Feedback loop; Filters; High power amplifiers; Impedance; Low-noise amplifiers; Noise figure; Power amplifiers; Radiofrequency amplifiers;
Journal_Title :
Solid-State Circuits, IEEE Journal of
