A broadband CMOS amplitude detector for on-chip RF measurements Academic Article uri icon

abstract

  • This paper presents a CMOS RF amplitude detector as a practical integrated test device and demonstrates its application for on-chip testing. The proposed circuit performs full-wave rectification and generates a dc voltage proportional to the amplitude of an RF signal over a wide frequency range. The design considerations and analysis of operation for the employed class-AB rectifier are described. Fabricated in a standard 0.35- m CMOS process, the RF detector uses only 0.031 mm2 of area and presents an equivalent input capacitance of 13 fF. Measurements show that this RF test device has a detection dynamic range of 30 dB from 900 MHz to 2.4 GHz. Experimental results for the application of the RF amplitude detector in the built-in measurement of the gain and compression of a 1.6-GHz low-noise amplifier fabricated in the same chip are also presented. 2008 IEEE.

published proceedings

  • IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

altmetric score

  • 3

author list (cited authors)

  • Valdes-Garcia, A., Venkatasubramanian, R., Silva-Martinez, J., & Sanchez-Sinencio, E.

citation count

  • 86

complete list of authors

  • Valdes-Garcia, Alberto||Venkatasubramanian, Radhika||Silva-Martinez, Jose||Sanchez-Sinencio, Edgar

publication date

  • July 2008