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An ESD-Protected 5-GHz Differential Low-Noise Amplifier in a 130-nm CMOS Process
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( e, E: L4 J7 k" N- HAbstract- A novel ESD protection design for radio-frequency (RF) differential input/output (I/O) pads is proposed and successfully
! t) o! e9 w2 t+ W# U3 Japplied to a 5-GHz differential low-noise amplifier (LNA) in a 130-nm CMOS process. In the proposed ESD protection design,
# ]! }& v' @7 F7 c# x+ p2 T3 M; lan ESD bus and a local ESD clamp device are added between the differential input pads to quickly bypass ESD current, especially+ A# Q4 _% X# _3 r7 R5 O
under the pin-to-pin ESD-stress condition. With 10.3-mW power consumption under 1.2-V power supply, the differential LNA6 W8 H, Z o6 `; M
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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