Clocked D/A converter

A digital-to-analog conversion method comprising:

• connecting a first transistor and a second transistor as a differential pair, the first transistor and the second transistor having a switch input terminal, a switch output terminal and a switch third terminal, the first transistor and second transistor receiving a differential logic signal at the switch input terminals;
• connecting a bistable circuit with the switch output terminal of the first transistor and the output terminal of the second transistor;
• connecting a third transistor and a fourth transistor as a differential pair, the third transistor and the fourth transistor having a dock input terminal, a clock second terminal, and a clock third terminal;
• connecting the clock second terminal of the third transistor with the switch third terminal of the first and second transistor;
• connecting the clock second terminal of the fourth transistor with the bistable circuit;
• connecting the clock third terminal of the third transistor and fourth transistor with a current source;
• providing the switch input terminal of the first transistor with a first input signal and the switch input terminal of the second transistor with a second input signal complementary to the first input signal, the first and second input signals being switchable between a first logic input value and a second logic input value;
• providing the clock input terminal of the third transistor with a first clock signal and the clock input terminal of the fourth transistor with a second clock signal complementary to the first clock signal;
• and
• switching the first clock signal between a first clock value and a second clock value, the first clock value allowing the third transistor to conduct current from the current source to the first and second transistor and allowing the fourth transistor to block current from the current source to the bistable circuit the second clock value allowing the third transistor to block current from the current source to the first and second transistor and allowing the fourth transistor to conduct current from the current source to the bistable circuit.

A digital-to-analog converter comprising:

• an input/output circuit receiving a digital input signal and outputting an analog output signal;
• a bistable circuit connected with the input/output circuit;
• a clock circuit connected with the input/output circuit and the bistable circuit;
• and
• a current generator circuit connected with the clock circuit, wherein:
• the clock circuit acts as a switch, providing current from the current generator either to the input/output circuit or to the bistable circuit;
• the digital input signal is a switchable signal switching when the current generator provides current to the bistable circuit;
• and
• the analog output signal is a switchable signal associated with the digital input signal, the analog output signal switching when the current generator provides current to the input/output circuit.