Title :
A four-channel transimpedance amplifier for a compact disc front-end
Author :
Baschirotto, Andrea
Author_Institution :
Dept. of Innovation Eng., Lecce Univ., Italy
fDate :
2/1/2000 12:00:00 AM
Abstract :
A four-channel transimpedance amplifier to be used in a compact disc front-end is presented. The overall transimpedance gain of the four channels is set by controlling the gain of a gain-controlled buffer. This solution requires for setting the gain of the four channels only one external precise resistor. The system has been realized in a 0.7 μm BiCMOS technology. It consumes 40 mW from a single 5 V supply and achieves 36 dB SNR for an input signal with a 0-3.2 MHz bandwidth, without requiring an equalizer in the signal path
Keywords :
BiCMOS analogue integrated circuits; Hi-Fi equipment; integrated circuit layout; operational amplifiers; 0 to 3.2 MHz; 0.7 micron; 40 mW; BiCMOS technology; compact disc front-end; four-channel transimpedance amplifier; gain-controlled buffer; transimpedance gain; Bandwidth; Capacitance; Circuit noise; Dynamic range; Equalizers; Photodiodes; Resistors; Signal processing; Technological innovation; Voltage;
Journal_Title :
Consumer Electronics, IEEE Transactions on
