A CMOS tunable transimpedance amplifier
Journal
IEEE Microwave and Wireless Components Letters
Journal Volume
16
Journal Issue
12
Pages
693-695
Date Issued
2006
Author(s)
Abstract
A tunable transimpedance amplifier (TIA) is presented in this letter. By incorporating a mechanism for gain and bandwidth tuning, the TIA can be adjusted to achieve optimum circuit performance with a lowest bit-error-rate (BER) for high-speed applications. The proposed circuit is implemented in a 0.18-μm CMOS process. Consuming a dc power of 34 mW from a 2.0-V supply voltage, the fabricated TIA exhibits a variable - 3-dB bandwidth from 3.9 to 7.6 GHz while maintaining a transimpedance gain of 52 dBΩ. With a 7.5-Gb/s 2 31 -1 pseudo-random bit sequence, the measured input sensitivity of the TIA is - 19 dBm at a BER of 10 -12. © 2006 IEEE.
Subjects
Bit-error-rate (BER); Input sensitivity; Intersymbol interference (ISI); Optical receiver; Regulated cascode; Total integrated noise; Transimpedance amplifier (TIA); Tunable bandwidth
Other Subjects
Optical receivers; Total integrated noise; Transimpedance amplifier (TIA); Tunable bandwidth; Bandwidth; Bit error rate; CMOS integrated circuits; Electric impedance; Gain control; Intersymbol interference; Power amplifiers
Type
journal article