A 28mW WCDMA/GSM/GPRS/EDGE transformer-based receiver in 45nm CMOS

A transformer-based receiver designed in 45nm CMOS that meets WCDMA, GSM, GPRS, and EDGE system requirements is presented. The receiver requires no interstage SAW filters and consumes 20mA from 1.4V. The use of a transformer at the LNA output helps achieve high linearity by lowering the voltage swin...

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Hauptverfasser: Griffith, Danielle, Srinivasan, Venkatesh, Pennisi, Salvatore, Rentala, Vijay, Yu Su, Sankaran, Swaminathan, Elahi, Imtinan, Samala, Sreekiran, Kiper, Halil, Patel, Bijit, Akhtar, Siraj, Edmondson, Dan
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creator Griffith, Danielle
Srinivasan, Venkatesh
Pennisi, Salvatore
Rentala, Vijay
Yu Su
Sankaran, Swaminathan
Elahi, Imtinan
Samala, Sreekiran
Kiper, Halil
Patel, Bijit
Akhtar, Siraj
Edmondson, Dan
description A transformer-based receiver designed in 45nm CMOS that meets WCDMA, GSM, GPRS, and EDGE system requirements is presented. The receiver requires no interstage SAW filters and consumes 20mA from 1.4V. The use of a transformer at the LNA output helps achieve high linearity by lowering the voltage swing while simultaneously providing current gain. The analog back end is implemented with two cascaded gain stages and a 2 nd order ΣΔ ADC. The receiver has a gain of 60dB, noise figure of 3.0dB and an IIP2 of >+50dBm on both I+Q channels. The die area is 1.35mm 2 for 4 bands.
doi_str_mv 10.1109/RFIC.2010.5477404
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects 45nm
Capacitors
CMOS
EDGE
Energy consumption
Ground penetrating radar
GSM
Impedance
Linearity
Low-noise amplifiers
Multiaccess communication
radio receiver
Receivers
SAW filters
transformer
WCDMA
title A 28mW WCDMA/GSM/GPRS/EDGE transformer-based receiver in 45nm CMOS
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