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This paper describes the design methodology, simulation, and tools used to design a 4.25 Gb/s high output swing laser driver (LD) and the electrical to optical interface from the LD to the laser diode. The quality of the optical output of a fiber optic communication channel is mainly determined by the LD and the electrical interface from the LD to the laser diode. Of particular importance in the interface...
The design of a 155-Mb/s-4.25-Gb/s laser driver in SiGe BiCMOS is described. A large output voltage compliance range that allows DC coupling to the laser diode is achieved with a translinear pseudo-differential output driver. Active back-termination is provided at the modulation output pins. Careful design of the level shift stage affords low deterministic jitter over a very wide range of bit rates...
The authors examine the extent to which dielectric relaxation in typical monolithic capacitors degrades the performance of charge-redistribution analog-to-digital (A/D) converters. They present experimental device data from a monolithic capacitor test circuit, describe an empirical capacitor model fit to the measurements, and compare simulated A/D system errors with those observed in a monolithic,...
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