PRECISE RELAXATION OSCILLATOR INTEGRATED CIRCUIT HAVING TEMPERATURE COMPENSATING FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a buffer oscillator with which a stable clock frequency can be maintained independently of a temperature. SOLUTION: A precise relaxation oscillator 1 having temperature compensation generates the stable clock frequency over the wide fluctuation of a surrounding temperature. This oscillator has a vibration generator 100 and two independent current generators 200. The outputs of two programmable independent current generators are coupled for supplying a capacitor charging current independent of the temperature. The precise relaxation oscillator 1 having the temperature compensation is provided on a single monolithic integrated circuit.