A 160-MHz bipolar wide-band IF amplifier

Author

Sjöland, Henrik ; Mattisson, Sven

Author_Institution

Dept. of Appl. Electron., Lund Univ., Sweden

Volume

33

Issue

10

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

1555

Lastpage

1558

Abstract

Wide-band intermediate-frequency (IF) amplifiers are needed when the data rates of communication systems increase. A single wide-band IF amplifier can also be used for a radio band with several narrow-band channels of varying strengths. High linearity is then required if intermodulation products are not to disturb weak channels. We have previously reported a highly linear wide-band IF amplifier in a complementary metal-oxide-semiconductor process. Using a similar topology, an npn-only bipolar amplifier with even higher linearity is now presented. The amplifier is fully differential and operates with a 5 V supply, At 20 MHz, 5 V_pp over a 1 kΩ load, the measured total harmonic distortion is just 9.068%

Keywords

bipolar analogue integrated circuits; differential amplifiers; intermediate-frequency amplifiers; wideband amplifiers; 160 MHz; 20 MHz; 5 V; NPN transistors; bipolar wideband IF amplifier; fully differential amplifier; intermediate-frequency amplifiers; linearity; Broadband amplifiers; CMOS technology; Differential amplifiers; Distortion measurement; Linearity; Narrowband; Output feedback; Semiconductor optical amplifiers; Topology; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.720403

Filename

720403