Title :
An open-source-input, ultra-wideband LNA with mixed-voltage ESD protection for full-band (170-to-1700 MHz) mobile TV tuners
Author :
Mak, Pui-In ; Ieong, Ka-Hou Ao ; Martins, R.P.
Author_Institution :
Analog & Mixed-Signal VLSI Lab., Univ. of Macau, Macao
Abstract :
An ultra-wideband low-noise amplifier (LNA) covering the full mobile TV bands (170-to-1700 MHz) is presented. It features an ESD-protected open-source-input structure to interface the off-chip balun, such that a rail-to-rail input swing and an inductorless broadband input impedance matching can be achieved concurrently, while providing better linearity and inducing less noise. In the amplification core, double-current reuse and single-stage wideband thermal noise cancellation techniques are proposed. Optimized in a 90-nm CMOS process, the LNA achieves 20.6-dB voltage gain, 2.4-to-2.7 dB noise figure and + 10.8 dBm IIP3, while consuming 9.6 mW of power at 1.2 V. |SII| < -10 dB is achieved up to 1.9 GHz without needing any external resonant network. Human Body Model ESD zapping tests of plusmn 4 kV at the RF pins cause no failure of any device.
Keywords :
electrostatic discharge; impedance matching; low noise amplifiers; mobile television; television broadcasting; thermal noise; tuning; ultra wideband technology; CMOS process; ESD protection; frequency 170 MHz to 1700 MHz; impedance matching; low-noise amplifier; mobile TV tuners; noise figure 2.4 dB to 2.7 dB; size 90 nm; thermal noise cancellation; ultra-wideband LNA; Electrostatic discharge; Impedance matching; Linearity; Low-noise amplifiers; Mobile TV; Noise cancellation; Protection; Rail to rail inputs; Tuners; Ultra wideband technology;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541506