Patent ID: 7158069

Claim:
An analog-digital converter, comprising: quantization means having an input terminal for receiving an analog quantity to be converted; a register having an output terminal to provide a digital quantity corresponding to the analog quantity; a timing pulse generator on a same integrated circuit as the quantization means; and a logic unit coupled to the quantization means, the register and the timing pulse generator, the logic unit capable of responding to a conversion request signal originating from an external requesting unit by activating the quantization means in such a manner as to make the quantization means carry out operations timed by the timing pulses and load into the register the digital quantity to be provided at the output terminal, the logic unit being capable of generating a stop signal for an oscillator, and the timing pulse generator including the oscillator capable of being started and stopped by a binary signal applied to its activation input terminal; and the logic unit including means for generating the binary signal to apply to the activation input terminal of the oscillator, said binary signal assuming a first or a second binary state corresponding, respectively, to activation and deactivation of the oscillator in response to, respectively, the conversion request signal and the stop signal for the oscillator.