Analysis of a source-coupled CMOS multivibrator

Author

Finvers, I.G. ; Filanovsky, I.M.

Author_Institution

Alberta Univ., Edmonton, Alta., Canada

Volume

35

Issue

9

fYear

1988

fDate

9/1/1988 12:00:00 AM

Firstpage

1182

Lastpage

1185

Abstract

The determinant of the system of nodal equations for a source-coupled CMOS multivibrator with drain clamping by active devices is calculated. Equating this determinant to zero allows the condition of transition from one quasistable state to another to be obtained. This condition is used to calculate the currents in the multivibrator transistors at the instant of transition. Then the voltage amplitude at the coupling capacitor is calculated and the oscillation frequency is found. The control characteristic (oscillation frequency versus level of the operating current) is evaluated. The results were verified experimentally

Keywords

CMOS integrated circuits; circuit oscillations; equivalent circuits; multivibrators; nonlinear network analysis; relaxation oscillators; active devices; coupling capacitor; drain clamping; oscillation frequency; quasistable state; source-coupled CMOS multivibrator; transistor currents; transition condition; voltage amplitude; Capacitors; Clamps; Coupling circuits; Equations; Equivalent circuits; Frequency; Linear circuits; Oscillators; Prototypes; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0098-4094

Type

jour

DOI

10.1109/31.7584

Filename

7584