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This paper presents a baseband architecture consisting of a complex IQ bandpass filter followed by a 3-stage Variable Gain Amplifier (VGA) designed for multi-standard navigation receivers. A new dc offset correction circuit based on a low-pass feedback network is proposed for high gain VGA to cancel its own dc offset and that of the previous stage. The presented baseband circuits are incorporated into a multi-standard navigation receiver fabricated in 65 nm CMOS technology. The filter and VGA together provide a programmable gain of 43 dB over a tunable bandwidth of 2-4 MHz with less than 1-dB in-band attenuation. Occupying 0.39 mm 2 on-chip area, the filter and VGA draw a maximum current of 7 mA from a 1.2-V supply

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