IEEE Journal of Solid-State Circuits · 1998 · 128 citations · 22 references
Low-power ElectronicsElectrical EngineeringEngineeringVlsi DesignHigh-frequency DeviceData ConverterMixed-signal Integrated CircuitAnalog DesignComputer EngineeringSame Effective InductanceMhz Low-noise AmplifierMicroelectronicsMicrowave EngineeringRf SubsystemMonolithic Transformers
A 900 MHz low-noise amplifier (LNA) utilizing three monolithic transformers to implement on-chip tuning networks and requiring no external components has been integrated in 2.88 mm/sup 2/ in a standard digital 0.6 /spl mu/m CMOS process. A bias current reuse technique is employed to reduce power dissipation, and process-, voltage-, and temperature-tracking biasing techniques are used. At 900 MHz, the LNA dissipates 18 mW from a single 3 V power supply and provides 4.1 dB noise figure, 12.3 dB power gain, -33.0 dB reverse isolation, and an input 1-db compression level of -16 dBm. Analysis and modeling considerations for silicon-based monolithic transformers are presented, and it is shown that a monolithic transformer occupies less die area and provides a higher quality factor than two independent inductors with the same effective inductance in differential applications.
22