CMOS current follower circuits

Author

Parnklang, Jirawath ; Nanthanawanitch, Witsarut ; Titiroongruang, Wisut

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand

Volume

2

fYear

1999

fDate

36495

Firstpage

1030

Abstract

We design current follower circuits (CF) using the CMOS transistor to substitute for the bipolar transistor circuit. The experimental result which uses Spice program found that the input and output impedance of the circuit are 5 kΩ and 76 MΩ respectively. Moreover, the bandwidth of the circuit can be used in a wide range from 0 Hz to 4.1 MHz for CF⁺ and 0 Hz to 3.4 MHz and the harmonic distortion is less than 4.06% for CF⁺ and 4.27% for CF^-. We also implement the circuit by using a commercial MOS transistor 4007, which consists of a dual complement of the CMOS transistor. The implemented circuits show that the electrical characteristics are the same as the analysis results from the Spice program

Keywords

CMOS analogue integrated circuits; SPICE; active networks; analogue processing circuits; circuit simulation; current-mode circuits; harmonic distortion; 0 Hz to 3.4 MHz; 0 Hz to 4.1 MHz; 5 kohm; 76 Mohm; CMOS current follower circuits; Spice program; bandwidth; dual complement; electrical characteristics; harmonic distortion; output impedance; Bandwidth; Bipolar transistor circuits; CMOS process; Current mode circuits; Filtering; Frequency; Impedance; Low voltage; MOSFETs; Power supplies;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818597

Filename

818597