Title :
A 155-MHz BiCMOS automatic gain control amplifier
Author :
Huang, Po-Chiun ; Huang, Chen-Yi ; Wang, Chorng-Kuang
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/1/1999 12:00:00 AM
Abstract :
This paper proposes a 155-MHz automatic gain control (AGC) amplifier implemented in a double-poly-double-metal 1.0-μm BiCMOS technology. The amplifier contains an exponential-type variable gain amplifier, a buffer-based filter, and asynchronous demodulation peak detector circuits. The initialization and the output magnitude setup circuits are incorporated in the AGC amplifier. It yields an input dynamic range of at least 26 dB and provides a constant output of 1 V pp at a 50-Ω load with AGC loop bandwidth of 80 kHz. The power consumption is 180 mW from a single 5-V supply
Keywords :
BiCMOS analogue integrated circuits; automatic gain control; demodulation; feedback amplifiers; peak detectors; 1 V; 1.0 micron; 155 MHz; 180 mW; 5 V; 50 ohm; 80 kHz; BiCMOS; asynchronous demodulation peak detector circuits; automatic gain control amplifier; buffer-based filter; double-poly-double-metal technology; exponential-type variable gain amplifier; input dynamic range; loop bandwidth; output magnitude setup circuits; power consumption; BiCMOS integrated circuits; Circuit simulation; Dynamic range; Filters; Gain control; Harmonic distortion; Sampling methods; Solid state circuits; Switches; Switching circuits;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
