A dual-mode 802.11b/Bluetooth receiver in 0.25/spl mu/m BiCMOS

A dual-mode direct-conversion 802.11b/Bluetooth receiver is integrated from LNA to ADC in a 0.25/spl mu/m BiCMOS process. The baseband circuits are programmable to accommodate both standards while the RF front-end is shared. Die area is 21 mm/sup 2/, and the IC consumes 45.6/41.3mA (802.11b/Bluetooth). Sensitivity is -86/-91dBm and IIP3 is -13/-13dBm.