Editing Mixed-signal integrated circuit (section)

===RF CMOS circuits===
{{Main|RF CMOS}}
While working at [[Bell Labs]] in the early 1980s, Pakistani engineer [[Asad Abidi]] worked on the development of [[List of semiconductor scale examples|sub-micron]] [[MOSFET]] (metal–oxide–semiconductor field-effect transistor) [[VLSI]] (very [[large-scale integration]]) technology at the Advanced LSI Development Lab, along with Marty Lepselter, [[George E. Smith]], and Harry Bol. As one of the few [[circuit design]]ers at the lab, Abidi demonstrated the potential of sub-micron [[NMOS logic|NMOS]] [[integrated circuit]] technology in high-speed [[communication circuit]]s, and developed the first [[MOSFET|MOS]] [[amplifiers]] for [[Gb/s]] data rates in [[optical fiber]] receivers. Abidi's work was initially met with skepticism from proponents of [[gallium arsenide]] and [[bipolar junction transistor]]s, the dominant technologies for high-speed circuits at the time. In 1985, he joined [[UCLA]], where he pioneered [[RF CMOS]] technology in the late 1980s. His work changed the way in which [[RF circuit|radio-frequency (RF) circuit]]s would be designed, away from discrete [[bipolar transistors]] and towards CMOS [[integrated circuit]]s.<ref name="O'Neill">{{cite journal |last1=O'Neill |first1=A. |title=Asad Abidi Recognized for Work in RF-CMOS |journal=IEEE Solid-State Circuits Society Newsletter |date=2008 |volume=13 |issue=1 |pages=57–58 |doi=10.1109/N-SSC.2008.4785694 |issn=1098-4232}}</ref>

Abidi was researching analog [[CMOS]] circuits for [[signal processing]] and [[Telecommunication|communications]] during the late 1980s to early 1990s. In the mid-1990s, the RF CMOS technology that he pioneered was widely adopted in [[wireless networking]], as [[mobile phones]] began entering widespread use. As of 2008, the [[radio transceiver]]s in all wireless networking devices and modern mobile phones are mass-produced as RF CMOS devices.<ref name="O'Neill"/>

The [[baseband processor]]s<ref>{{cite book |last1=Chen |first1=Wai-Kai |title=The VLSI Handbook |date=2018 |publisher=[[CRC Press]] |isbn=9781420005967 |pages=60–2 |url=https://books.google.com/books?id=rMsqBgAAQBAJ&pg=SA60-PA2}}</ref><ref>{{cite book |last1=Morgado |first1=Alonso |last2=Río |first2=Rocío del |last3=Rosa |first3=José M. de la |title=Nanometer CMOS Sigma-Delta Modulators for Software Defined Radio |date=2011 |publisher=[[Springer Science & Business Media]] |isbn=9781461400370 |page=1 |url=https://books.google.com/books?id=Alv6nWVCkDIC&pg=PA1}}</ref> and radio transceivers in all modern [[wireless networking]] devices and [[mobile phones]] are mass-produced using RF CMOS devices.<ref name="O'Neill"/> RF CMOS circuits are widely used to transmit and receive wireless signals in a variety of applications, such as [[satellite]] technology (such as [[GPS]]), [[Bluetooth]], [[Wi-Fi]], [[near-field communication]] (NFC), [[mobile network]]s (such as [[3G]], [[4G]], and [[5G]]), [[Terrestrial television|terrestrial]] [[broadcast]], and [[automotive electronics|automotive]] [[radar]] applications, among other uses.<ref>{{cite book |last1=Veendrick |first1=Harry J. M. |title=Nanometer CMOS ICs: From Basics to ASICs |date=2017 |publisher=Springer |isbn=9783319475974 |page=243 |url=https://books.google.com/books?id=Lv_EDgAAQBAJ&pg=PA243}}</ref> RF CMOS technology is crucial to modern wireless communications, including wireless networks and [[mobile communication]] devices.<ref>{{cite news |title=Infineon Hits Bulk-CMOS RF Switch Milestone |url=https://www.eetasia.com/news/article/18112004-infineon-hits-bulk-cmos-rf-switch-milestone |access-date=26 October 2019 |work=[[EE Times]] |date=20 November 2018 |language=en-PH}}</ref>