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An ESD-Protected 5-GHz Differential Low-Noise Amplifier in a 130-nm CMOS Process0 F/ z& `3 D5 ^: w+ p1 N
) t' G6 H0 }; ] s% b [! V" b" ]3 E/ e3 eAbstract- A novel ESD protection design for radio-frequency (RF) differential input/output (I/O) pads is proposed and successfully
+ P3 s* y% O# \4 ?- ~7 G' r: eapplied to a 5-GHz differential low-noise amplifier (LNA) in a 130-nm CMOS process. In the proposed ESD protection design,
: ~7 R d- G0 ^. [an ESD bus and a local ESD clamp device are added between the differential input pads to quickly bypass ESD current, especially$ n/ T/ y1 S6 W, M$ y4 G) G
under the pin-to-pin ESD-stress condition. With 10.3-mW power consumption under 1.2-V power supply, the differential LNA' \1 ^) K5 K4 N. ?: \: o+ x
with 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.
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