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An ESD-Protected 5-GHz Differential Low-Noise Amplifier in a 130-nm CMOS Process
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# y- Y% B2 t8 |; @Abstract- A novel ESD protection design for radio-frequency (RF) differential input/output (I/O) pads is proposed and successfully c2 j) _2 W) x1 k" M @( h9 ~7 [
applied to a 5-GHz differential low-noise amplifier (LNA) in a 130-nm CMOS process. In the proposed ESD protection design,( [9 C9 Z1 _! `7 p3 S7 f2 i% T
an ESD bus and a local ESD clamp device are added between the differential input pads to quickly bypass ESD current, especially5 R, U8 M! E/ N! k
under the pin-to-pin ESD-stress condition. With 10.3-mW power consumption under 1.2-V power supply, the differential LNA
( w! ]; K' H( v7 D( ^$ C( \/ Uwith the proposed ESD protection design has the human-bodymodel (HBM) ESD robustness of 3 kV, and exhibits 18-dB power gain and 2.62-dB noise figure at 5 GHz. Experimental results have demonstrated that the proposed ESD protection circuit can be co-designed with the input matching network of LNA to simultaneously achieve excellent RF performance and high ESD robustness.7 x5 q, P4 A& V
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