Asynchronously controllable successive approximation analog-to-digital converter

For use in an analog-to-digital converter of the successive approximation type, of which the operation is regulated by clock signals, a control signal processing circuit comprising:

• first storage means, for registering the occurence of an asynchronous converter control signal;
• and
• second storage means coupled to said first storage means, for generating a synchronous converter control signal upon the occurence of a clock signal after said first storage means has registered the occurence of an asynchronous converter control signal;
• and wherein
• the asynchronous converter control signal is a start-convert signal, and
• said circuit includes resetting means for connecting the synchronous converter control signal to reset said first storage means and hold said first storage means in the reset condition unitl completion of a conversion process.

For use in an analog-to-digital converter of the successive approximation type, of which the operation is regulated by clock signals, a control signal processing circuit comprising:

• first storage means, for registering the occurence of an asynchronous converter control signal;
• and
• second storage means coupled to said first storage means, for generating a synchronous converter control signal upon the occurence of a clock signal after said first storage means has registered the occurence of an asynchronous converter control signal;
• wherein the asychronous converter control signal is a conversion-interrupt signal, and said circuit further includes resetting means for generating a reset signal from the synchronous converter control signal, and applying the reset signal to said first storage means during a reset period, to permit subsequent asynchronous converter control signals to be received.